JP5360501B2 - Manual connector for medical connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manual detachment/attachment device of a medical connector, capable of improving the degree of freedom of component arrangement inside the device. <P>SOLUTION: Through a link lever 602, the rotating motion of an opening/closing lid 6 is transmitted to a rotary type first connector holder 50 and the first connector holder 50 is rotated. Thus, even in the configuration that the rotation axis X4 of the opening/closing lid 6 and the rotation axis X1 of the first connector holder 50 are eccentric, by transmitting the rotating motion of the opening/closing lid 6 to the first connector holder 50 and rotating the first connector holder 50 via the link lever 602, a first connector 1 is rotated to be loosened or tightened. Thus, by appropriately selecting the shape of the link lever 602, the position of the rotation axis X4 of the opening/closing lid 6 and the position of the rotation axis X1 of the first connector holder 50 are arbitrarily set, and thus the degree of freedom of the component arrangement inside the device is improved. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention preferably relates to an improvement in the internal configuration of a manual connector for a medical connector used for peritoneal dialysis.

  Peritoneal dialysis (CAPD) uses the peritoneum as a dialysis membrane, and a peritoneal dialysis set with a bag containing dialysate is connected to the abdominal cavity catheter implanted in the patient's peritoneal cavity, and the dialysate is intraperitoneally injected. And then drained after a certain period of storage. The dialysate is stored for a certain period of time, and blood purification is performed by removing waste products and water due to the difference in solute concentration and osmotic pressure generated between the dialysate and blood in capillaries distributed in the peritoneum.

  Peritoneal dialysis consists of a cycle of draining, changing bags, injecting dialysate, and storing as described above, and patients must perform this cycle frequently 3 to 5 times a day. This is a very troublesome operation. Of particular concern is the attachment / detachment of the patient-side connector (first connector) provided at the distal end of the extension tube connected to the abdominal catheter and the dialysate-side connector (second connector) of the set with the dialysate bag. Since attachment of bacteria to the connector at the time of detachment causes peritonitis, sufficient caution is required. Further, the problem at the time of attaching and detaching the connector is not only the adhesion of bacteria, but there is a possibility that a serious situation such as a connection error or a liquid leakage may be caused by an erroneous operation of a patient's manual operation with inconvenient eyes or hands.

  Patent Documents 1 and 2 below have proposed medical connector manual attachment / detachment devices for solving such problems. FIG. 18 conceptually shows a connector attaching / detaching procedure when this manual attaching / detaching device is used. FIG. 18A shows a preparatory stage before connecting the patient side connector and the dialysate side connector. First, the patient side connector 100 is provided at the distal end of the catheter inserted into the abdominal cavity of the patient side 300. A cap 101 is provided. On the other hand, on the dialysis side, a dialysate-side connector 200 is provided at the tip of the Y-shaped tube, and a connector cap 201 is provided. A dialysate bag 301 and a drainage bag 302 are connected to the tip of the Y-shaped tube, and one of them is connected to the patient side by a valve.

  In the set state of FIG. 18A, the patient side connector 100 and the connector cap 201 are arranged in parallel, and the connector cap 101 and the dialysate side connector 200 are also arranged in parallel.

  In order to separate the connector cap 101 and the patient side connector 100 from this set state, the connector cap 101 is rotated and both are separated. At the same time, in order to separate the connector cap 201 and the dialysate side connector 200, the two are pulled apart. This is shown in FIG.

  Next, the axis X (see FIG. 18B) set between the connector cap 201 and the patient side connector 100 is rotated about 180 ° with the axis X as the rotation center. Accordingly, as shown in FIG. 18C, the patient side connector 100 and the dialysate side connector 200 are made to face each other. The connector cap 101 and the connector cap 201 are also opposed to each other. Next, as shown in FIG. 18 (d), the patient-side connector 100 and the dialysate-side connector 200 are moved and moved along the axial direction, and the dialysate-side connector 200 is rotated to connect the two. . The connector cap 101 and the connector cap 201 are also connected to each other. In this connected state, the dialysate stored in the abdominal cavity of the patient is discharged into an empty drain bag 302. Then, the dialysate in the dialysate bag 301 is injected into the abdominal cavity by switching the valve.

  When the injection of dialysate is completed, the reverse procedure is followed, and the connector caps are put on the respective connectors again. In this case, a new connector cap is prepared and set.

  As described above, it is necessary to perform an operation as shown in FIG. 18 until the connectors are connected. In Patent Documents 1 and 2, when the handle is rotated by a predetermined angle, the first operation in the area of the rotation operation is performed. A mechanism is built in that the operation (a) → (b) can be performed in the region, the operation (b) → (c) in the second operation region, and the operation (c) → (d) in the third operation region.

JP 2007-54276 A JP 2007-259938 A

In Patent Document 2, a first connector holder 50 and an auxiliary holder 51 are attached on the same axis as the rotation axis X ₁ of the opening / closing lid 6 that is pivotally supported with respect to the main body case 5. A configuration is disclosed in which the first connector cap 3 can be loosened or screw-fastened by rotating the first connector 1 in conjunction with the opening / closing operation (paragraphs [0046] and [FIG. 8A]. ]).

However, in the configuration attaching the first connector holder 50 and the auxiliary holder 51 to the axis of rotation X ₁ and coaxially of the cover 6 as described above, the position and the axis of rotation X ₁ of the cover 6, the first connector holder Since the positions of the 50 and the auxiliary holder 51 are limited, there is a problem that the degree of freedom of component arrangement in the apparatus is poor.

  This invention is made | formed in view of the said situation, The subject is providing the manual removal apparatus of the medical connector which can improve the freedom degree of the components arrangement | positioning in an apparatus.

In order to solve the above problems, a manual connector for a medical connector according to the present invention comprises:
In order to attach and detach the medical connector composed of the first connector and the second connector,
A first connector holder and a first cap holder capable of holding the first connector and the first connector cap, respectively, with the first connector cap being attached to the first connector;
A second connector holder and a second cap holder capable of holding the second connector and the second connector cap, respectively, with the second connector cap being attached to the second connector;
A main body case for holding a first connector holder, a first cap holder, a second connector holder and a second cap holder;
An open / close lid pivotally supported around a predetermined axis with respect to the main body case,
At least one of the first connector, the first connector cap, the second connector, and the second connector cap is a rotary connector or connector cap that can be coupled by rotating with respect to the corresponding connector or connector cap.
Of the first connector holder, the first cap holder, the second connector holder, and the second cap holder, at least one holder corresponding to the rotary connector or the connector cap is eccentric from the rotational axis of the opening / closing lid. It is a rotary holder that can rotate around the axis line
Rotating and loosening one of the first connector, the first connector cap, the second connector and the second connector cap by transmitting the rotational movement of the opening / closing lid to the rotary holder and rotating the holder, or And a link lever for fastening.

  The operation and effect of such a manual connector for a medical connector will be described. The opening / closing lid can be opened and closed, and the first connector and the first connector cap are held in the first connector holder and the first cap holder, respectively, with the opening / closing lid opened, and the second connector and the second connector cap are held in the first position. After the two connector holders and the second cap holder are respectively held, the open / close lid can be closed. The first connector cap is removed from the first connector, the second connector cap is removed from the second connector, and the medical connector composed of the first connector and the second connector is detached while the opening / closing lid is closed. Done. After the operation is completed, the first connector cap is again attached to the first connector, and the opening / closing lid is opened with the second connector cap attached to the second connector.

  In such a configuration, at least one of the first connector, the first connector cap, the second connector, and the second connector cap is a rotary connector or a connector cap, and the first connector holder, the first cap holder, and the second connector. Of the holder and the second cap holder, at least one holder corresponding to the rotary connector or the connector cap is a rotary holder that can rotate around an axis that is eccentric from the rotation axis of the opening / closing lid.

  As described above, even if the rotation axis of the opening / closing lid and the rotation axis of the rotary holder are eccentric, the rotational movement of the opening / closing lid is transmitted to the rotary holder via the link lever. By rotating, any one of the first connector, the first connector cap, the second connector, and the second connector cap can be rotated and loosened or fastened. That is, it can be loosened when closing the opening / closing lid or fastened when opening the opening / closing lid. Therefore, by appropriately selecting the shape of the link lever, the position of the rotation axis of the opening / closing lid and the position of the rotation axis of the rotary holder can be arbitrarily set, so the degree of freedom of component placement in the apparatus is increased. Can be improved.

A manual desorption device for a medical connector according to the present invention includes:
While the first connector holder and the second cap holder are arranged in parallel, the first cap holder and the second connector holder are arranged in parallel,
An operation unit for operating the connector detachment;
A cap separating means for separating the first connector and the first connector cap and separating the second connector and the second connector cap in the first operation region of the operation section;
In the second operation area following the first operation area, the first connector cap and the second connector arranged in parallel, or the first connector and the second connector cap are rotated around a predetermined axis, and the first connector and the second connector are rotated. A holder, and a holder rotating means for moving the first connector cap and the second connector cap so as to face each other;
In a third operation region following the second operation region, the first connector and the second connector, and a connector connecting means for connecting the first connector cap and the second connector cap, respectively.
The axis of rotation by the holder rotating means may be located between the axis of rotation of the open / close lid and the axis of rotation of the rotary holder.

  By operating the operation unit, the first connector and the second connector are connected. In the initial set state, as described in FIG. 18A, the first connector second connector cap is arranged in parallel. The first connector cap and the second connector are set so as to be arranged in parallel.

  The operation area by the operation unit is large and can be divided into a first operation area, a second operation area, and a third operation area. The operation in each operation area is as follows.

  (1) In the first operation area, the first connector and the first connector cap are separated, and the second connector and the second connector cap are separated. There are various conceivable methods for connecting the connector and the connector cap, such as a rotary type (screw type) and a snap type, but a rotary type is adopted for at least one connector or connector cap.

(2) In the second operation area, the holder is moved so that the first connector and the second connector face each other and the first connector cap and the second connector cap face each other. In this case, it rotates around a predetermined axis. When rotating, at least the following two modes can be considered.
(2-1) The first connector cap and the second connector are rotated while the first connector and the second connector cap are fixed. The center of rotation can be a center line between the first connector cap and the second connector.
(2-2) The first connector cap and the second connector cap are rotated while the first connector cap and the second connector are fixed. The center of rotation can be a center line between the first connector and the second connector cap.

  (3) In the third operation area, the first connector and the second connector, and the first connector cap and the second connector cap are respectively connected.

  In this configuration, the rotation axis of the holder rotating means is located between the rotation axis of the opening / closing lid and the rotation axis of the rotary holder. In this way, even if the rotational axis of the rotary holder is separated from the rotational axis of the holder rotating means with respect to the rotational axis of the opening / closing lid, the rotational movement of the opening / closing lid can be rotated via the link lever. The holder can be satisfactorily rotated by being transmitted to the holder.

Diagram showing connector configuration Diagram showing connector connection A perspective view showing an external configuration of a manual desorption device (operation unit side) Perspective view showing the external configuration of the manual desorption device (opposite side) The perspective view which shows the state which opened the opening-and-closing lid of the manual attachment / detachment device (state which opened the connector holder) The perspective view which shows the state which opened the opening-and-closing lid of the manual attachment / detachment device (state which closed the connector holder) Sectional view showing the connector presser closed Plan view showing the open / close lid of the manual attachment / detachment device (with the connector retainer open) The figure which shows the holder structure for a 1st connector The figure which shows the holder structure for a 2nd connector A perspective view showing the interlock mechanism of the opening / closing lid and the holder (with the lid opened) A perspective view showing the interlock mechanism of the opening / closing lid and holder (with the lid closed) The perspective view which shows the power transmission mechanism (holder drive mechanism) from an operation part to a holder support body A plan view showing a power transmission mechanism (holder drive mechanism) from the operation unit to the holder support Diagram showing the structure of the clutch mechanism Diagram showing the structure of the clutch mechanism Plan view of the holder support drive mechanism from the bottom side The perspective view which looked at the drive mechanism of the holder support from the bottom side The perspective view seen from the bottom side which shows the click mechanism of a holder support The figure which shows the structure of a holder rotation mechanism Diagram explaining the operation of the cylindrical cam Side view showing the configuration of the eject mechanism Diagram showing the configuration of the tube guide mechanism Diagram showing the operation of the tube guide mechanism Plan view explaining the operation of the manual desorption device (connector set) Plan view for explaining the operation of the manual detaching device (releasing the first connector) Plan view explaining the operation of the manual detaching device (connector separation) Plan view explaining the operation of the manual desorption device (connector rotation) Plan view explaining the operation of the manual detaching device (connector connection) Diagram explaining the rotation of the holder ((a) Connector rotation start) ((b) Connector 90 ° rotation) ((c) Connector 180 ° rotation) The figure explaining insertion and removal of the connector concerning a prior art

  A preferred embodiment of a manual connector for a medical connector according to the present invention will be described with reference to the drawings. First, a preferred embodiment of the medical connector will be described.

<Medical connector>
As explained at the beginning, the medical connector according to the present invention is preferably used in peritoneal dialysis (CAPD), and is composed of a patient side connector and a dialysate side connector. The structure of these connectors is shown in FIG.

  FIG. 1A shows the configuration of the first connector 1 on the patient side. The first connector 1 is provided with a connector connecting portion 11 on the distal end side of the tube 10. A knob portion 12 for performing a connection operation in the connector connecting portion 11 and a flange 13 positioned at the boundary between the knob portion 12 and the connector connecting portion 11 are provided. The connector connecting portion 11 is provided with an O-ring 14 and a cam groove 15. By providing the O-ring 14, leakage of dialysate is prevented. The knob portion 12 is provided with two protruding portions 12a for operation in the circumferential direction.

  When the cam groove 15 is developed along the circumferential direction, a view as shown in FIG. The same cam groove 15 is formed in the circumferential direction at 180 ° intervals. The cam groove 15 has a first region 15a and a second region 15b. The first region 15a occupies a region of 45 ° in the circumferential direction and is an inclined groove. The second region 15b also occupies a 45 ° region in the circumferential direction, and is a straight groove along the circumferential direction.

  The connector connecting portion 11 can be covered with the first connector cap 3, and two protrusions 30 for operation are provided in the circumferential direction. Engagement protrusions 31 that engage with the cam grooves 15 are provided at two locations inside the first connector cap 3. Therefore, when the first connector cap 3 is put on the first connector 1, the engaging protrusion 31 is aligned with the entrance of the cam groove 15 (see FIG. 1B), and the first connector cap 3 is rotated. (You may rotate the 1st connector 1 side), while the 1st connector cap 3 rotates, it moves to an axial direction (left-right direction of FIG. 1), and covers the 1st connector cap 3 on the 1st connector 1 Can do. FIG. 2A shows a state where the first connector 1 and the first connector cap 3 are completely connected.

  Further, a ring-shaped first flange 30a and a second flange 30b are formed on the outer peripheral surface of the first connector cap 3, and are used for positioning when the first connector cap 3 is attached to the first cap holder. The first flange 30a and the second flange 30b are separated from each other by a predetermined distance for positioning to the holder, and the second flange 30b is located on the insertion side.

  FIGS. 1C and 1D show the configuration of the second connector 2 on the dialysate side. (D) is a side view of the state rotated 90 degrees from the state of (c). The second connector 2 is provided with a connector connecting portion 21 on the distal end side of the Y-shaped tube 20. A drain bag and a dialysate bag are connected to the Y tube 20. The connector connecting portion 21 has two protruding portions 21a for operation in the circumferential direction. In addition, a ring-shaped first flange 21b and a second flange 21c are provided on the outer periphery of the connector connection portion 21, and are used for positioning when the connector connection portion 21 is attached to the second connector holder. The first flange 21b and the second flange 21c are separated from each other by a predetermined distance for positioning to the holder, and the second flange 21c is located on the insertion side.

  The connector connector 21 can be covered with the second connector cap 4. The second connector cap 4 is provided with a knob portion 40 and is formed in a ring shape. At the tip of the second connector cap 4, two engaging claws 41 for coupling with the connector connecting portion 21 are provided. The engaging claw 41 is formed to be elastically deformable.

  FIG. 2B shows a state in which the second connector 2 and the second connector cap 4 are coupled, and the connector connecting portion 21 is provided with an engaging groove 22 that engages the tip of the engaging claw 41. It has been. Therefore, when the second connector 2 and the second connector cap 4 are coupled, the engagement groove 22 of the second connector 2 and the position of the engagement claw 41 of the second connector cap 4 in the circumferential direction are aligned, and the axis line is maintained. It can couple | bond by inserting the 2nd connector cap 4 along a direction. That is, when the second connector 2 and the second connector cap 4 are coupled, no rotation operation is required, and the second connector 2 and the second connector cap 4 can be attached and detached only by movement in the axial direction.

  A cylindrical projecting cylinder 42 is formed at the center of the second connector cap 4. When the second connector 2 is connected, the inner cylindrical projecting cylinder 23 is fitted inside. The In addition, a guide wall 43 is formed in an outer periphery of the protruding cylinder 42 of the second connector cap 4 and in an area where the engaging claws 41 are not formed. A triangular notch 43 a is formed in the center of the guide wall 43.

  Further, a ring-shaped first flange 40a and a second flange 40b are provided on the base side of the knob portion, and are used for positioning when mounted on the second cap holder.

  When exchanging the dialysate, the first connector cap 3 of the first connector 1 on the patient side is removed, and the second connector cap 4 of the second connector 2 on the dialysate side is also removed, so that the first connector 1 and the second connector are removed. 2 are connected. The connection completion state is shown in FIG. Similarly to the first connector cap 3, an engagement protrusion 23 a is provided in the connector connection portion 21 of the second connector 2 and can be engaged with the cam groove 15. Therefore, the operation when the second connector 2 is attached to the first connector 1 is the same as the operation when the first connector cap 3 is attached (rotation operation + movement in the axial direction).

  Further, as shown in FIG. 2D, the first connector cap 3 and the second connector cap 4 can also be attached to each other. An engagement groove 32 that engages with the engagement claw 41 of the second connector cap 4 is provided inside the first connector cap 3, similarly to the second connector. Since the triangular cutout 43a is provided, the engagement protrusion 31 of the first connector cap 3 does not interfere. When the first and second connector caps 3 and 4 are coupled, a rotation operation is not necessary, and an operation only in the axial direction is sufficient.

  The first connector 1 on the patient side needs to be connected to the dialysate bag at the time of exchanging dialysate (at the time of discharge / infusion), and the connection state of the first connector 1 until the next dialysate exchange Need to be protected from accidental removal. Therefore, the detachment operation of the first connector 1 and the second connector 2 and the first connector 1 and the first connector cap 3 is performed by a rotation operation.

  In addition, the second connector 2 on the dialysate side only needs to be protected until the product outer packaging is opened and connected to the first connector 1 on the patient side. Therefore, the detaching operation of the second connector 2 and the second connector cap 4 is only moved in the axial direction.

<Configuration of manual connector for medical connector>
Next, the manual attachment / detachment device for the medical connector described in FIGS. 1 and 2 will be described. 3A and 3B are perspective views showing the external configuration of the manual detaching device, FIG. 3A is a perspective view seen from the operation unit side, and FIG. 3B is a perspective view seen from the opposite side.

  The manual attachment / detachment device includes a main body case 5 and an opening / closing lid 6 as external parts. The opening / closing lid 6 is rotatably supported around the rotation axis X4, and is configured such that the upper part of the apparatus main body is exposed by opening the opening / closing lid 6. Although the shaft core X4 is shown in FIG. 4A, the shaft core X4 is provided horizontally on the side opposite to the side on which the operation unit 7 is provided. As shown to FIG. 3A, the hole 6a for letting the tube 10 pass is formed.

  A slit S is formed when the opening / closing lid 6 is closed by the bending portion 5a formed on the side surface portion of the main body case 5 and the bending portion 6b formed on the side surface portion of the opening / closing lid 6. The slit S is provided so that the Y-shaped tube 20 of the second connector 2 can move when the first connector 1 and the second connector 2 are attached and detached. The slit S is formed in a substantially arc shape.

  On the front side of the main body case 5 is provided a rotary handle type operation section 7 which is attached so as to be able to rotate around the axis Y by 145 °. An operation knob 7a is provided at the end of the operation unit 7, and the first connector 1 and the second connector 2 are rotated by closing the opening / closing lid 6 and rotating the operation unit 7 in the direction of arrow A1 (see FIG. 3A). The first connector 2 and the second connector 2 can be separated by rotating in the arrow B1 direction. Further, it is preferable that the operation unit 7 is provided with a lock mechanism so that the operation unit 7 cannot be rotated when the opening / closing lid 6 is opened.

  An operation recess 6 c is provided on the operation portion 7 side of the opening / closing lid 6. A lid lock lever 110 for locking the opening / closing of the opening / closing lid 6 is provided, and is rotatably held on the upper portion of the main body case 5. A bearing 111 for rotating the lid lock lever 110 is provided on the main body case 5 side. The open / close lid 6 can be opened by tilting the lid lock lever 110 forward. On the back surface of the lid lock lever 110, an engaging claw (not shown) that can be engaged with an engaging protrusion (not shown) provided in the operation recess 6c is integrally formed. The operation recess 6c functions as a space for inserting a finger when operating the lid lock lever 110.

<Holder structure>
Next, a holder structure for setting the first connector 1 and the second connector 2 will be described. Since the holders for setting the connectors 1 and 2 are exposed to the upper part of the apparatus main body by opening the opening / closing lid 6, the connectors 1 and 2 can be set from above.

  4A and 4B are perspective views showing a state where the opening / closing lid of the manual attachment / detachment device is opened, FIG. 4A shows a state where the connector presser is closed, and FIG. 4B shows a state where the connector presser is opened (illustration of the opening / closing lid). Is omitted). FIG. 4C is a cross-sectional view showing a state in which the connector presser is closed. FIG. 5 is a plan view showing a state where the open / close lid of the manual detaching device is opened. 6 shows a holder structure for setting the first connector 1, and FIG. 7 shows a holder structure for setting the second connector 2. FIG. 8 is a view showing an interlocking mechanism of the opening / closing lid and the holder.

  In FIG. 4, the connector presser 120 is held so as to be rotatable around the axis X5. The connector presser 120 has a function of pressing the connectors 1 and 2 and the connector caps 3 and 4 so as not to be lifted carelessly during the connector attaching / detaching operation. The connector presser 120 has a plate-like flat portion 121 and a square hole 121a. A line 121b printed in an appropriate color (for example, red) is formed on the plane portion 121.

  On the other hand, a first frame 150 and a second frame 151 for holding each member are formed in the main body case 5 on the main body side by resin molding. The first and second frames 150 and 151 are integrated by an appropriate method such as fitting and screwing. A fitting protrusion 122 integrally formed on the surface of the first frame 150 is provided, and is formed in a prismatic shape. A line 122a is also printed on the surface of the fitting protrusion 122. When the connector presser 120 is completely closed, the lines 121b and 122a appear to be in a straight line. Thereby, it is possible to confirm the completion state of the attachment of the connector presser 120.

  FIG. 4C is a cross-sectional view showing a state in which the connector presser 120 is closed. As shown in FIG. 4B, a click pin 123 protrudes on the back side of the connector retainer 120 and is biased in the protruding direction by a coil spring 124. A stepped portion 122 b is formed on the fitting protrusion 122. When the connector retainer 120 is closed, the tip of the click pin 123 comes into contact with the surface of the fitting protrusion 122. When the connector retainer 120 is further pushed from this state, the click pin 123 is moved by the wall surface of the fitting protrusion 122. Forced. When the click pin 123 comes to the position of the stepped portion 122b, the click pin 123 protrudes by the urging force of the coil spring 124, and the connector presser 120 is held (see FIG. 4C).

  In FIG. 4, an eject lever 160 is provided, and when it is pushed down, the connectors 1 and 2 and the connector caps 3 and 4 can be taken out from the holder. Details of the ejection mechanism will be described later.

  FIG. 5 is a plan view showing a state in which the opening / closing lid 6 and the connector presser 120 are opened. The boundary line between the first frame 150 and the second frame 151 is indicated by 150L. A first print pattern 150 a and a second print pattern 150 b are printed on the surface of the first frame 150 to indicate the insertion direction of the connectors 1 and 2.

  The support shaft 125 passes through the bearing portion 150c formed integrally protruding from the first frame 150 and the pair of left and right bearing portions 120a formed on the connector retainer 120, whereby the rotary bearing portion of the connector retainer 120 is configured. Has been.

<Details of connector holder 1>
6A is a perspective view showing a holder structure for holding the first connector 1, FIG. 6B is a plan view, FIG. 6C is a side view, and FIG. 6D is the first connector 1 and the first connector. It is a top view which shows the state which mounted | wore the cap 3. FIG. The first connector 1 can be attached to the first connector holder 50 with the first connector cap 3 coupled thereto. The first connector holder 50 includes a holder main body 50a and a tube support 50b provided integrally with the holder main body 50a. A pair of engaging claws 50c is provided in the center of the holder body 50a. When the knob portion 12 of the first connector 1 is inserted into the holder main body portion 50 a, the knob portion 12 is sandwiched by the engaging claws 50 c so that the attached first connector 1 does not rotate in the first connector holder 50. Holds securely. The engaging claw 50c has a rotation axis X6 set at the base portion, and is supported so as to be freely rotatable about the rotation axis X6 (see FIG. 6C).

  Moreover, the auxiliary holder 51 is provided, and the tube support portion 50b is inserted therein so as to be slidable in the arrow C direction. A compression coil spring 52 is provided, and the first connector holder 50 is urged in a direction protruding from the auxiliary holder 51. However, since the contact portion 50x of the first connector holder 50 is in contact with the contact portion 51x formed on the auxiliary holder 51, this restricts movement in the protruding direction. This state is conceptually illustrated in FIG.

  The tube support 50b is provided with a tube receiving groove 50e (U-shaped) so that the tube 10 of the first connector 1 can be inserted, and the auxiliary holder 51 is also slit at the top so that the tube 10 can be inserted. Is provided. The auxiliary holder 51 is formed with a fitting portion 51b into which the tube receiving groove 50e can be fitted. As a result, the first connector holder 50 can slide in the direction of arrow C in the auxiliary holder 51.

  A hole 50f is formed in the bottom of the holder main body 50a, and an eject pin, which will be described later, can be protruded through the hole 50f, so that the first connector 1 once mounted can be easily taken out.

  A bearing portion 51 a for rotating the auxiliary holder 51 in conjunction with opening / closing of the opening / closing lid 6 is integrally formed. This interlocking mechanism will be described later.

  A pair of holder holding arms 151a are integrally formed from the second frame 151 described above, and the upward movement of the auxiliary holder 51 is restricted. The pair of holder holding arms 151a are formed in an arch shape, and a slit into which the tube 10 is inserted is formed at a position where these holder holding arms 151a face each other.

  The first connector cap 3 is attached to the first cap holder 60. The first connector cap 3 includes a main body 60a, and a recess in which the first connector cap 3 is placed is formed. A cap guide 60b is formed on the side of the main body 60a close to the first connector holder 50, and a groove formed between the first flange 30a and the second flange 30b when the first connector cap 3 is attached is Guided by the cap guide 60b. Thereby, the 1st connector cap 3 can be attached in the state positioned in the axial direction.

  A groove 60 c along the axial direction is formed at the bottom of the first cap holder 60, and the protruding portion 30 of the first connector cap 3 is fitted, whereby the first connector cap 3 is placed in the first cap holder 60. It is held so as not to rotate relatively.

  A hole 60d is formed in the bottom of the first main body 60a, and an eject pin, which will be described later, can be projected like the first connector holder 50.

  A ring-shaped guide groove 61 is formed on the opposite side of the second main body portion 60b from the first main body portion 60a, and a first gear 62 is further provided. A gear shaft 62 a is provided integrally with the first gear 62, and the axis of the gear shaft 62 a is in a position eccentric from the axis of the first connector 1. The functions of the guide groove 61 and the first gear 62 will be described later.

<Details 2 of the connector holder>
7A is a perspective view showing a holder structure for holding the second connector 2, FIG. 7B is a plan view, FIG. 7C is a side view, and FIG. 7D is a state in which the second connector 2 is mounted. Is shown. The first connector 2 can be attached to the second connector holder 70 with the second connector cap 4 coupled thereto.

  The 2nd connector holder 70 is provided with the 1st main part 70a located in the side near the 2nd cap holder 45, and the 2nd main part 70b located in the far side. The upper portion of the first main body portion 70a is opened to insert the second connector 2 from above, and the upper portion of the second main body portion 70b is similarly opened. In accordance with the shape of the second connector 2, the width of the housing recess of the second body 70b is narrower than the width of the housing recess of the first body 70a.

  A groove 70 d along the axial direction is formed at the bottom of the second connector holder 70, and the protruding portion 21 a of the second connector 2 is fitted, whereby the second connector 2 is relatively moved within the second connector holder 70. To keep it from rotating. Further, a circumferential groove 70e is formed inside the first main body portion 70a, and the first flange 21b of the second connector 2 is fitted therein, so that the second connector 2 can be attached in a state of being positioned in the axial direction thereof. .

  A ring-shaped guide groove 71 is formed on the opposite side of the second main body portion 70b from the side where the first main body portion 70a is provided, and a second gear 72 is further provided. A gear shaft 72 a is provided integrally with the second gear 72, and the axis of the gear shaft 72 a is in a position eccentric from the axis of the second connector 2. The functions of the guide groove 71 and the first gear 72 will be described later.

  A hole 70f is formed in the bottom of the holder main body 70a, and an eject pin, which will be described later, can be protruded through the hole 70f, so that the second connector 2 once mounted can be easily taken out.

  The second cap holder 45 includes a pair of guide portions 45 a and functions as a guide when the knob portion 40 of the second connector cap 4 is attached. Moreover, it has the groove | channel 45b formed along an axial direction, and the knob part 40 of the 2nd connector cap 4 fits. Thus, the second connector cap 45 is held so as not to rotate relatively in the second cap holder 45.

  The axis line X2 of the second connector holder 70 and the second cap holder 45 is parallel to the axis line X1 (see FIG. 6) of the first connector holder 50 and the first cap holder 60 disposed adjacent to each other, and is disposed at a predetermined interval. Is done.

  The second cap holder 45 is fixed to the upper part of the apparatus main body (first frame 150) in a state where the second cap holder 45 cannot rotate or move. The second cap holder 45 is coupled to the first frame 150 of the apparatus main body by appropriate mechanical means such as bolts.

  A hole 45d is also formed in the bottom portion of the second cap holder 45, and an eject pin, which will be described later, can be projected through the hole 45d, so that the second connector cap 4 once mounted can be easily taken out. .

<Interlocking mechanism between the lid and holder>
8A and 8B are diagrams showing an interlocking mechanism of the opening / closing lid 6, the first connector holder 50, and the auxiliary holder 51. FIG. The open / close lid 6 is pivotally supported around the support shaft 601 via the lid support block 600. The lid support block 600 and the opening / closing lid 6 are fastened by screws 603. A link lever 602 is provided for transmitting the rotational movement of the opening / closing lid 6 to the holder. An end portion of the link lever 602 near the lid side is pivotally supported by the link shaft 602a so that the arm portion 600a protruding from the lid support block 600 can be relatively rotated. At the end near the auxiliary holder 51, the link shaft 602 b is pivotally supported by the bearing portion 51 a of the auxiliary holder 51 so as to be relatively rotatable.

  FIG. 8A shows a state in which the opening / closing lid 6 is opened, and the space for accommodating the tube of the auxiliary holder 51 faces upward. When the opening / closing lid 6 is rotated around the support shaft 601 and closed, the auxiliary holder 51 is rotated counterclockwise (see an arrow) in FIG. 8A via the link lever 602. The rotation angle is 90 °. The opening / closing angle of the opening / closing lid 6 is also 90 °. FIG. 8B shows a state in which the open / close lid 6 is closed.

  By adopting this configuration, the first connector cap 3 can be loosened by rotating the first connector 1 in conjunction with the opening / closing operation of the opening / closing lid 6, or the first connector cap 3 can be fastened. When the first connector 1 is rotated, the first connector 1 tends to move in the axis (X1) direction. At that time, the first connector holder 50 moves in a direction away from the first connector cap 3 (or a direction in which the first connector holder 50 approaches the auxiliary holder 51) against the urging force of the compression coil spring 52. (See FIG. 6C).

  The first cap holder 60 is provided on the apparatus main body side, but is provided at a position that is coaxial with the axis X1.

  In the present embodiment, the first connector 1 is a rotary connector that can be coupled by rotating with respect to the corresponding first connector cap 3. The first connector holder 50 corresponding to the first connector 1 is a rotary holder that can rotate about an axis X1 that is eccentric from the rotation axis X4 of the opening / closing lid 6. As described above, even if the rotation axis X4 of the opening / closing lid 6 and the rotation axis X1 of the first connector holder 50 are eccentric, the rotation movement of the opening / closing lid 6 is controlled via the link lever 602. By rotating the first connector holder 50 by transmitting to the first connector 1, the first connector 1 can be rotated and loosened or fastened. That is, the first connector 1 can be loosened when the opening / closing lid 6 is closed, or the first connector 1 can be fastened when the opening / closing lid 6 is opened. Therefore, by appropriately selecting the shape of the link lever 602, the position of the rotation axis X4 of the opening / closing lid 6 and the position of the rotation axis X1 of the first connector holder 50 can be arbitrarily set. The degree of freedom of arrangement can be improved.

  In the present embodiment, the rotation axis X3 of the first cap holder 60 and the second connector holder 70, which will be described later, is located between the rotation axis X4 of the opening / closing lid 6 and the rotation axis X1 of the first connector holder 50. Yes. As described above, even if the rotation axis X1 of the first connector holder 50 is separated from the rotation axis X3 of the first cap holder 60 and the second connector holder 70 with respect to the rotation axis X4 of the opening / closing lid 6, Through the link lever 602, the rotational movement of the opening / closing lid 6 can be transmitted to the first connector holder 50, and the first connector holder 50 can be favorably rotated.

  However, the link lever 602 is not limited to a configuration that transmits the rotational movement of the opening / closing lid 6 to the first connector holder 50, but may be configured to transmit to other holders. That is, when the 1st cap holder 60 holding the 1st connector cap 3 which is a rotation type connector cap is the composition which can rotate the circumference of the central axis like the 1st connector holder 50 in this embodiment. May be configured to transmit the rotational movement of the opening / closing lid 6 to the first cap holder 60 via the link lever 602. In this case, the second cap holder 45 and the first connector holder 50 may be configured to be rotatable around the axis X3.

  Further, when the second connector 2 and the second connector cap 4 are configured to be a rotary connector and a connector cap, respectively, the second connector holder 70 or the second cap holder 45 that holds them is It is also possible to adopt a configuration that can rotate around the central axis, and to transmit the rotational movement of the opening / closing lid 6 to the second connector holder 70 or the second cap holder 45 via the link lever 602. In this case, the first cap holder 60 and the second connector holder 70 are configured to be rotatable around the axis X3, and the axis X3 is positioned between the rotation axis of the second cap holder 45 and the rotation axis X4 of the opening / closing lid 6. The second cap holder 45 and the first connector holder 50 can be rotated around the axis X3, and the axis X3 is the rotation axis of the second connector holder 70 and the rotation axis of the opening / closing lid 6. It is good also as a structure located between X4.

<Description of internal mechanism>
Next, an internal mechanism for driving the holder will be described. As shown in FIG. 3A, the operation unit 7 is a member that is rotated by a manual rotation operation. When the operation unit 7 is operated in the direction of the arrow A1 in FIG. It can remove and the 1st connector 1 and the 2nd connector 2 can be connected. At the same time, the connector caps 3 and 4 of the connectors 1 and 2 can be connected to each other.

  When the operation section 7 is operated in the direction of the arrow B1, the reverse operation is performed, the first connector 1 and the second connector 2 are separated, and new connector caps 3 and 4 are attached to the respective connectors 1 and 2. be able to.

  9A and 9B are views showing a power transmission mechanism (holder driving mechanism) from the operation unit 7 to the holder support. 9A is a perspective view of the power transmission mechanism, and FIG. 9B is a plan view of the power transmission mechanism. An eject mechanism is also installed. The eject lever 160 is normally housed in a vertical posture, but for convenience of illustration, the eject lever 160 is shown in a tilted state in FIG.

  In FIG. 9, a plate-like support frame 210 that holds the power transmission mechanism is provided. The operation shaft 25 is connected to the operation unit 7 and rotates in conjunction with the rotation operation of the operation unit 7. In addition, illustration of the operation part 7 is abbreviate | omitted. A bevel gear 26 is integrally coupled to the operation shaft 25. In order to support the operation shaft 25, a support wall 211 is erected from the support frame 210. Further, the end portion of the operation shaft 25 is pivotally supported by an L-shaped support wall 212 in a plan view.

  In addition, an axis line X3 is set at the midpoint between the axis lines X1 and X2, and a cylindrical cam 27 that is rotatable around an axis line X3 'set vertically below the axis line X3 is provided. A cam groove 27 a is formed along the circumferential surface of the cylindrical cam 27. The cylindrical cam 27 is supported by a rotating shaft 28 along the axis X3 '. One end of the rotary shaft 28 is pivotally supported by an L-shaped support wall 212. The other end of the rotary shaft 28 is pivotally supported by a support wall 213 erected vertically to the support frame 210.

  A bevel gear 27 b is integrally formed at one end of the cylindrical cam 27 and is always meshed with the bevel gear 26. The bevel gear 26 and the bevel gear 27b mesh with each other in a state where the rotation axis is orthogonal. Accordingly, when the operation unit 7 is rotated, the cylindrical cam 27 is also rotated.

  A transmission member 29 is provided concentrically adjacent to the cylindrical cam 27. A transmission gear 29 a is integrally formed with the transmission member 29. The cylindrical cam 27 and the transmission member 29 are pivotally supported by the same rotation shaft 28, but the transmission of power from the cylindrical cam 27 to the transmission member 29 is performed via a clutch mechanism described later. That is, when the clutch is disengaged, the transmission member 29 does not rotate even if the cylindrical cam 27 rotates. When the clutch is engaged, the rotation of the cylindrical cam 27 is transmitted to the transmission member 29, so that the cylindrical cam 27 and the transmission member 29 can be integrally rotated.

  In the first operation area S1 and the third operation area S3 of the operation unit 7, the clutch is disengaged, and a configuration is adopted in which the clutch is engaged only in the second operation area S2.

  When the operation unit 7 is rotated, the cylindrical cam 27 is rotated together with the bevel gear 26 and the bevel gear 27b. When the clutch is engaged, the transmission member 29 also rotates together. However, the bevel gear 26, the cylindrical cam 27, the bevel gear 27b, and the transmission member 29 can rotate, but cannot move along the respective rotation axis directions.

<Clutch mechanism>
Next, the configuration of the clutch mechanism will be described with reference to FIGS. 10A and 10B. As shown in FIG. 9B, the transmission member 29 can be divided into a first portion 29A and a second portion 29B along the axis X3 ′ in terms of functionality. FIG. 10A (a) is a view of the first portion 29A viewed from the axial direction. A transmission gear 29a is partially formed along the circumferential direction. The transmission gear 29a meshes with a connection gear 81a disposed on the upper portion thereof. The connection gear 81a has a function of rotating the holder support, and details will be described later.

  As shown in FIG. 10A (b), a clutch action surface 29c is formed in the second portion 29B by linearly notching the cylindrical surface. A normal cylindrical surface 29d is formed adjacent to the clutch action surface 29c, and a notch surface 29e that is greatly cut out is also provided. The first part 29A and the second part 29B shown in (a) and (b) show a state before the operation by the operation unit 7 is started, and show a state in the same phase.

  FIG. 10A (c) shows the configuration of the cylindrical cam 27 on the side in contact with the transmission member 29. FIG. An accommodation recess 27 c for accommodating the clutch member 270 is formed at the end of the cylindrical cam 27. The clutch member 270 is biased in a direction protruding from the cylindrical cam 27 by a coil spring 271. The clutch member 270 is formed in a portal shape when viewed in the axial direction, and the further upward protrusion is restricted by the locking portion 270a coming into contact with the stepped portion 27d formed in the housing recess 27c. .

  As shown in FIG. 10B, the clutch member 270 is integrally formed with a presser portion 270b, a driven portion 270c, and a spring support portion 270d in that order. The pressing portion 270b is disposed so as to protrude toward the transmission member 29, but has a positional relationship such that the back surface thereof is substantially in contact with the cylindrical surface 29d. However, the pressing portion 270b does not have a function of forcibly pressing the cylindrical surface 29d and rotating the transmission member.

  As shown in FIG. 10A (c), the driven portion 270c has a substantially trapezoidal surface as viewed in the axial direction. Further, the driven portion 270c has a shape protruding further outward than the presser portion 270b (see FIG. 10B). A coil spring 271 is disposed between the back surface of the spring support portion 270d and the housing recess 27c.

  As shown in FIG. 10A (c), a clutch operation guide 214 (corresponding to clutch forcing means) formed integrally with the support frame 210 is provided. The clutch operation guide 214 is formed with an arc surface 214 a concentric with the outer peripheral surface of the cylindrical cam 27. When the cylindrical cam 27 is rotated counterclockwise in FIG. 10A, the driven portion 270c of the clutch member 270 moves to the position of the clutch operation guide 214, and further, the driven portion 270c is pushed. This state is shown in FIGS. 10A (d) and 10B (b).

  At this time, the clutch member 270 is pushed down (in the center direction) against the urging force of the coil spring 271. Further, at this time, the presser portion 270b is moved to a position facing the clutch action surface 29c of the transmission member 29. Therefore, since the clutch operating surface 29c is pressed by the presser 270b, the clutch is engaged, and the transmission member 29 also rotates together with the rotation of the cylindrical cam 27. This state continues while the driven portion 270c is pressed down by the clutch operation guide 214 (that is, during the second operation region S2).

  Thus, in the region where the clutch is engaged, the transmission member 29 rotates, and the connection gear 81a can rotate in conjunction with this. That is, the holder support can also be rotated.

<Drive mechanism for holder support>
Next, the drive mechanism for the holder support will be described. FIG. 11A is a plan view of the holder support driving mechanism as viewed from the bottom surface side. FIG. 11B is a perspective view of the drive mechanism of the holder support viewed from the bottom surface side. For ease of understanding, it is shown in a partially disassembled state. FIG. 12 is a diagram illustrating a configuration of the holder rotation mechanism.

  The holder support 80 is configured to be movable along the axis X <b> 3 with respect to the drive shaft 81 attached to the main body case 5. The holder support 80 has a cam pin 80p (cam follower) that is engaged with the cam groove 27a. Accordingly, by rotating the cylindrical cam 27, the cam pin 80p moves along the cam groove 27a, so that the holder support 80 can move along the axis X3. However, the holder support 80 cannot rotate around the axis X3.

  A disc-shaped guide body 80 a is integrally provided at one end of the holder support 80 in the axial direction. The guide body 80 a is a guide groove 61 of the first cap holder 60 and 71 of the second connector holder 70. (See also FIGS. 6 and 7). Thereby, the 1st cap holder 60 and the 2nd connector holder 70 are guided to the guide body 80a, and can rotate smoothly around the axis line X3.

  The drive shaft 81 is pivotally supported in a state where both ends thereof can rotate on the apparatus main body. A connecting gear 81a is coupled to one end of the drive shaft 81, and the connecting gear 81a can mesh with the transmission gear 29a. The connection gear 81a and the drive shaft 81 are connected by forming a D-cut portion in the drive shaft 81 and forming a D hole in the center of the connection gear 81a, and fitting (or press-fitting) these holes, so that both are integrated. Combined. Therefore, when the connecting gear 81a rotates, the drive shaft 81 always rotates. The holder support 80 is fitted so as to be movable along the axis X3 of the rotation shaft 81. The connecting gear 81a cannot move along the axis X3.

  A driving gear 81b (see also FIG. 12) is coupled to the other end side of the driving shaft 81 adjacent to the guide body 80a. Thereby, when the connection gear 81a meshed with the transmission gear 29a rotates, the drive gear 81b can also rotate together. The drive gear 81b and the drive shaft 81 are connected by a D cut and a D hole similarly to the connection gear 81a. Therefore, the connection gear 81a and the drive gear 81b rotate integrally.

  FIG. 12 is a view showing a mechanism for rotating the holder, and is a view seen from one side of the drive shaft 81. FIG. 12A shows a state where some parts (gear holder 84 and the like) are covered, and FIG. 12B shows a state where the gear holder 84 is removed.

  As shown in FIG. 12B, the drive gear 81 b is connected to the first gear 62 via the first intermediate gear 82 and connected to the second gear 72 via the second intermediate gear 83. 12A, a gear holder 84 is provided and is integrally coupled to the drive shaft 81. The gear shaft 62a of the first gear 62 and the gear of the second gear 72 are also provided. The shaft 72a, the first intermediate gear 82, and the second intermediate gear 83 are pivotally supported. The five gears supported by these gear holders 84 are referred to as gear units for convenience of explanation.

  According to this configuration, when the drive shaft 81 rotates, the gear holder 84 also rotates, so that the first cap holder 60 and the second connector holder 70 rotate around the axis X3 '. The rotation angle is set to 180 °. In addition, since the gear unit is provided, the first cap holder 60 and the second connector holder 70 do not change their support postures (the first connector cap 3 and the second connector 4 are positioned upward) 180 °. It will be rotated.

(Cam shape)
Next, the relationship between the shape of the cam groove 27a of the cylindrical cam 27 and the operation area will be described. FIG. 13A shows a plan view of the cam groove 27a. FIG. 13B shows the relationship between the cam rotation angle and the cam displacement.

  The operation unit 7 can be rotated from the first position to the second position, and the operation angle therebetween is 145 °. Further, the internal cylindrical cam 27 rotates in conjunction with the rotation operation of the operation unit 7, but the angle of the cam groove formed in the cylindrical cam 27 is 300 ° in total. The operation area of the operation unit 7 and the cylindrical cam 27 can be divided into three areas: a first operation area S1, a second operation area S2, and a third operation area S3. The angle distribution at the cylindrical cam 27 is S1 = S3 = 105 ° and S2 = 90 °.

  In the forward operation of the operation unit 7, the first operation region S1 is a step of separating the first connector 1 and the first connector cap 3, the second connector 2 and the second connector cap 4, and the second operation region S2 is separated. The step of rotating the first connector cap 3 and the second connector 2 around the axis X3 by 180 °, the third region operation S3 includes the first connector 1 and the second connector 2, the first connector cap 3 and the second connector cap 4 Is a step of making each close. In the reverse operation of the operation unit 7, the reverse process is performed.

<Holder support click mechanism>
Next, the click mechanism of the holder support 80 will be described with reference to FIG. 11C. The holder support 80 moves along the axis X3, but it is preferable that there is a click feeling at the initial position (the first position of the first operation region S1). Thereby, it can be acquired as a touch when the operation unit 7 is operated that the operation is completed.

  FIG. 11C (a) is a perspective view of a part of the holder support 80 as viewed from below. In the holder support 80, a first main body portion 80b having a square cross-sectional shape and a second main body portion 80c having a circular cross-sectional shape are integrally formed. A guide body 80a is integrally connected to the first main body 80b. Click grooves 80d are formed on the left and right sides of the first main body 80b.

  A holder click member 86 is provided and is made of resin. The holder click member 86 has a pair of click portions 86a and can be fitted into the click groove 80d. The holder click member 86 is formed in a C shape in plan view, and the pair of click portions 86a are supported by the arm portions 86b, respectively. The arm portion 86b is formed in a thin flat plate shape so that it can be easily elastically deformed.

  The holder click member 86 has a mounting portion 86 c formed on the root side, and is fitted into a mounting convex portion 150 d formed integrally with the first frame 150. The holder click member 86 is fixed to the support frame 210 by screws 87 from the back side of the support frame 210.

  FIG. 11C (b) shows a state before the operation by the operation unit 7 is started and the click part 86d is fitted in the click groove 80d. When the operation unit 7 is operated in this state, the holder support 80 moves in the direction of arrow D, so that the click part 86d escapes from the click groove 80d. Since the arm portion 86b is easily elastically deformed, it can be easily escaped from the click groove 80d. When the holder support 80 returns from the direction of the arrow E after the click portion 86d is detached, the click portion 86d is again fitted into the click groove 80d.

<Eject mechanism>
Next, the ejection mechanism will be described. The ejection mechanism is provided with the same mechanism on the first connector side and the second connector side, respectively. The eject mechanism is provided for forcibly pushing up the first and second connectors and the first and second connector caps mounted on the holder from the holder.

  9A shows a perspective view of the eject mechanism, FIG. 9B shows a plan view of the eject mechanism, and FIG. 14 shows a side view of the eject mechanism. 4 and 5, a part of the eject lever 160 is shown in appearance.

  The eject lever 160 is pivotally supported around a shaft core 161 on a pair of support walls 215 formed integrally with the support frame 210. The eject lever 160 is integrally formed with an operation portion 160a, a pair of left and right support arms 160b that support the operation portion 160a, and a rotation portion 160c that is disposed coaxially with the shaft core 161. Also, a pair of link connecting portions 160d are provided near the shaft core. The link connecting part 160d is formed so that the tip part thereof is slightly upward from the horizontal direction. The distal end of the first link shaft 162a is connected to one end of the link lever 162 so as to be rotatable relative to the first link shaft 162a. The link lever 162 is disposed in a substantially horizontal posture.

  The other end of the link lever 162 is connected to one end of the operating plate 163 and the link shaft 162b so as to be relatively rotatable. An action pin 163 a is integrally planted on the other end of the operation plate 163.

  An eject member 164 is provided, and a pair of eject pins 164a and 164b, a tapered surface 164c, and a guide portion 164d are formed. A coil spring 165 is attached to one eject pin 164a, and urges the eject member 164 downward (in a direction in which the eject pin retracts). Accordingly, the eject lever 160 is urged clockwise around the axis 161 in FIG. A vertical guide wall 216 formed integrally with the support frame 210 is provided, and the guide portion 164 d is configured to be movable up and down along the guide wall 216.

  In the state of FIG. 14, when the eject lever 160 is rotated counterclockwise, the operation plate 163 is slid leftward via the link lever 162. As a result, the action pin 163a also moves to the left and acts on the tapered surface 164c to push up the eject member 164 upward. Thereby, the connectors 1 and 2 and the connector caps 3 and 4 attached to the holder can be pushed up from the holder. As shown in FIG. 4, the main body case 5 is formed with a pair of slits 5d in the vertical direction so that when the eject lever 160 is tilted, the pair of support arms 160b can pass through the slits 5d. ing.

<Tube guide mechanism>
Next, the tube guide mechanism will be described. FIG. 15A is an exploded perspective view showing the main configuration of the tube guide mechanism, and FIG. 15B is a view showing the operation of the tube guide. As already described, the curved portion 5a is formed in the main body case 5, and the arc-shaped slit S is formed when the opening / closing lid 6 is closed. The slit S is used to smoothly move the Y-shaped tube 20 when the connector is attached or detached. In order to move the Y-shaped tube 20 more smoothly, a tube guide mechanism is provided.

  In FIG. 15A, the main body case 5 is viewed from the inside. The bearing 5 b is fitted with the end of the drive shaft 81 to support the drive shaft 81. Guide rails 5c projecting vertically on both sides of the bearing portion 5b are integrally formed.

  A guide hole 90a is formed in the tube guide member 90, and the tube guide member 90 is guided by a vertical end portion of the guide hole 90a and a pair of guide rails 5c so as to be slidable in the vertical direction. A concave portion 90b is formed on the surface side of the tube guide member 90, and an upper inner end surface 90c of the concave portion 90b functions as a linear follower. The upper end surface of the tube guide member 90 functions as a tube guide surface 90d.

  The drive lever 91 is a rotatable member, and an oval hole 91a is formed at the center of rotation of the drive lever 91. As a result, the drive shaft 81 and the drive lever 91 can rotate together. A cam surface 91a indicated by a broken line is formed on the back surface side of the drive lever 91 (see also FIG. 12). The cam surface 91 a is formed so as to protrude from the back surface, and can be positioned in the recess 90 b of the tube guide member 90. The cam surface 91a is in a positional relationship that always contacts the upper inner end surface 90c.

  The operation will be described with reference to FIG. 15B. The drive shaft 81 rotates in the second operation area S2. In the first operation region S1, the Y-shaped tube 20 is located at the left end of the slit S as shown in (a). When the drive shaft 81 starts to rotate, the drive lever 91 also starts to rotate together, and the tube guide member 90 is lifted upward along the guide rail 5c. Thereby, the Y-shaped tube 20 is also lifted by the tube guide surface 90d and moves along the slit S. (C) is a figure which shows the state which the Y-shaped tube 20 has just come to the vertex of the slit S. FIG. (D) is a figure which shows the state in the end of 2nd operation area | region S2, or 3rd operation area | region S3. The Y-shaped tube 20 is located at the right end of the slit S, and the drive lever 91 is rotated 180 degrees by the drive shaft 81. Thus, the Y-tube 20 can be moved more smoothly by the cooperation of the slit S and the tube guide mechanism.

<Connecting / detaching connector>
Next, the connector attaching / detaching operation by the medical connector manual attachment / detachment device according to the present embodiment will be described.

<1. Connector set → lid closure>
First, the opening / closing lid 6 of the manual detaching device is opened. The opening angle of the opening / closing lid 6 is just 90 °. In the state shown in FIG. 5, the first connector 1 to which the first connector cap 3 is coupled is mounted on the first cap holder 60 and the first connector holder 50, respectively. On the other hand, the second connector 2 to which the second connector cap 4 is coupled is mounted on the second cap holder 45 and the second connector holder 70, respectively (see FIG. 16A). At this time, the operation unit 7 is in the first position. For convenience of explanation, the illustration of the connector presser 120 is omitted. Actually, the connector presser 120 is closed to hold the connector.

  Next, when the opening / closing lid 6 is closed, as described in FIGS. 8A and 8B, the opening / closing lid 6 rotates around the axis X4 (axial core 601) by the interlocking mechanism of the opening / closing lid 6 and the holder. . Along with this, the first connector holder 50 and the auxiliary holder 51 also rotate around the axis X4. The rotation angle is the same as that of the opening / closing lid 6, and the first connector holder 50 and the auxiliary holder 51 rotate 90 ° before the opening / closing lid 6 is closed. Accordingly, the first connector 1 attached thereto rotates 90 ° (FIG. 8B).

  When the first connector 1 is rotated by 90 °, the connection between the first connector 1 and the first connector cap 3 begins to loosen, and the engagement protrusion 31 of the connector cap 3 moves to the first connector 1 as shown in FIG. The cam groove 15 is detached. At this time, since the first connector 1 tends to be separated from the first connector cap 3 along the axis X 1, the first connector holder 50 moves backward against the urging force of the compression coil spring 52. Thereby, the preparation for pulling the first connector cap 3 away from the first connector 1 is completed (see FIG. 16B).

<2. First operation area>
Next, the operation unit 7 is gradually rotated from the first position (arrow A1 direction: see FIGS. 3A, 9A, and 11B). The operation shaft 25 and the bevel gear 26 are rotated by the rotation of the operation unit 7. The rotation of the bevel gear 26 is transmitted to the bevel gear 27b meshing with the bevel gear 26, and the cylindrical cam 27 is rotated. The rotation of the cylindrical cam 27 causes the cam pin 80p of the holder support 80 engaged with the cam groove 27a to move along the cam groove 27a.

  As a result, the holder support 80 moves in the direction of arrow D along the axis X3 (drive shaft 81) (see FIGS. 11A and 11B). With this movement, the first cap holder 60 and the second connector holder 70 also move in the same direction. The connecting gear 81a does not move. The gear unit supported by the gear holder 84 also moves in the same direction.

  By this movement, the first connector 1 and the first connector cap 3 are separated from each other. The first connector 1 and the first connector cap 3 are loosened in advance by the closing operation of the opening / closing lid 6 as described above, and both can be pulled apart smoothly. At the same time, the second connector 2 and the second connector cap 4 are also pulled apart from each other. The second connector 2 and the second connector cap 4 are not screw-coupled, but by simply moving the second connector 2 in the direction of arrow D, the engaging claw 41 can be detached from the engaging groove 32 and separated from each other. it can. FIG. 16C is a plan view showing the state at that time.

  In the first operation region S1, even when the cylindrical cam 27 rotates, the clutch member 270 does not act on the clutch acting surface 29c of the transmission member 290. That is, the clutch is disengaged. That is, the cylindrical cam 27 rotates, but the transmission member 29 does not rotate. Accordingly, the connecting gear 81a meshing with the transmission gear 29a of the transmission member 29 does not rotate. In the first operation region S1, the clutch member 270 is in the process of moving from the state shown in FIG. 10A (c) to the state shown in (d).

  In the first operation region S1, the drive shaft 81 does not rotate, so the tube guide member 90 and the drive lever 91 do not rotate (FIGS. 15A and 15B).

<3. Second operation area>
Furthermore, if the operation part 7 is rotated, it will enter into 2nd operation area | region S2. As the cylindrical cam 27 rotates, the driven portion 270c of the clutch member 270 reaches the position of the circular arc surface 204a of the clutch operation guide 204. Then, the clutch member 270 is forcibly pressed inward, and the clutch operating surface 29c of the transmission member 29 is pressed by the pressing portion 270b (see FIGS. 10A (d) and 10B (b)). Thereby, the cylindrical cam 27 and the transmission member 29 can rotate integrally.

  At this time, since the connection gear 81a and the transmission gear 29a are meshed from the beginning, the rotation of the cylindrical cam 27 is transmitted to the transmission gear 29a (transmission member 29), and the connection gear 81a is further rotated. In conjunction with this, the drive shaft 81 and the gear holder 84 also rotate.

  The gear holder 84 rotates around the axis X3 in the direction of arrow A3 (FIGS. 11A and 11B). In the second operation region S2, the cam groove 27a with which the cam pin of the holder support 80 is engaged does not change in displacement (see FIG. 13), so the holder support 80 does not move along the direction of the axis X3. It will be in a stopped state. As the gear holder 84 rotates, the first cap holder 60 and the second connector holder 70 supported by the gear holder 84 also rotate in the same direction. As a result, the first connector cap 3 and the second connector 2 are rotated about the axis X3. FIG. 17 shows a state viewed from the gear holder 84 side, and shows a state of rotation in the order of FIG. 17 (a) → (b) → (c).

  Further, since the drive gear 81 b is also rotated by the rotation of the drive shaft 81, the first gear 62 and the second gear 72 are also rotated via the first and second intermediate gears 82 and 83. By the rotation of the first gear 62 and the second gear 72, the first cap holder 60 and the second connector holder 70 rotate around the axis X3 and simultaneously rotate around the gear shafts 62a and 72a. As a result, the first cap holder 60 and the second connector holder 70 rotate while maintaining the same horizontal attitude, and the attitude when the first connector cap 3 and the second connector 2 are initially attached is also maintained. (See FIG. 17).

  In addition, the Y-shaped tube 20 connected to the second connector 2 rotates together with the rotation of the second connector 2. However, as described with reference to FIG. 1, an arcuate slit S is formed in the main body case 5 and the opening / closing lid 6. The Y-shaped tube 20 can move along the slit S. Moreover, the tube guide mechanism is provided as demonstrated in FIG. 15, The movement of the 2nd connector 2 can be performed without hindrance by these mechanisms.

  FIGS. 16D and 17C show a state where the operation in the second operation region S2 is completed, and is a state where the gear holder 84 and the like are rotated by 180 °. At this time, the second connector holder 70 and the first connector holder 50 face each other, and the first cap holder 60 and the second cap holder 45 face each other. Thus, preparations for connecting the first connector 1 and the second connector 2 and preparations for connecting the first connector cap 3 and the second connector cap 4 are completed.

<3. Third operation area>
When the operation unit 7 is further rotated, the operation unit 7 enters the third operation region S3. At this time, as the cylindrical cam 27 rotates, the driven portion 270c of the clutch member 270 escapes from the arc surface 204a of the clutch operation guide 204 (see FIG. 10A). That is, the clutch is disengaged. Since the pressing portion 270b of the clutch member 270 is disengaged from the clutch acting surface 29c of the transmission member 29 (see FIG. 10B), the transmission member 29 does not rotate thereafter even if the cylindrical cam 27 rotates. Accordingly, the connection gear 81a does not rotate any more, and the rotation of the gear holder 84, the drive gear 81b, etc. also stops.

  Further, the cam pin 80p of the holder support 80 is engaged with the third operation region S3 of the cam groove 27a of the cylindrical cam 27 (see FIG. 13), and accordingly, the holder support 80 is along the axis X3. Move in the direction of arrow E. This moving direction is completely opposite to the direction D in the first operation area S1 (see FIG. 11). As the holder support 80 moves, the first cap holder 60 and the second connector holder 70 also move along the axis X3. Accordingly, the second connector 2 approaches the direction of the first connector 1, and the first connector cap 3 approaches the direction of the second connector cap 4.

  When the operation in the third operation region S3 is completed, the first connector 1 is inserted into the second connector 2. At this time, the engagement protrusion 23 of the second connector 2 is in a state where it can be inserted into the cam groove 15 of the first connector 1 (see FIG. 2C). Accordingly, the screw connection between the first connector 1 and the second connector 2 is not completed at this stage.

  On the other hand, the first connector cap 3 is inserted into the second connector cap 4, and the coupling between the two is completed (see FIG. 16E). This coupled state is as shown in FIG. At this time, the operation unit 7 moves from the first position to the second position, and the operation in the past is completed.

<Lid open>
Next, the opening / closing lid 6 is opened. As a result, the first connector holder 50 and the auxiliary holder 51 rotate in the direction opposite to that when the lid 6 is closed. The rotation angle is 90 °, whereby the first connector 1 is also rotated 90 °, and the screw connection between the first connector 1 and the second connector 2 is completed (see FIG. 16E).

  As described above, when the first connector 1 and the second connector 2 are connected, the dialysate stored in the abdominal cavity of the patient is discharged into an empty drain bag in this connected state. And the dialysate in a dialysate bag is inject | poured into abdominal cavity by switching a valve not shown.

  Further, the coupled connector caps 3 and 4 are taken out and inserted into the first cap holder 60 and the second cap holder 45 in a state where the new connector caps 3 and 4 are coupled.

  When the exchange of the dialysate is completed, the open / close lid 6 is closed again, and this time, the operation unit 7 is rotated in the opposite direction (reverse operation). The rotation direction of the member is indicated by B1, B2, and B3 (see FIGS. 9 and 11). As a result, the operation described above is followed in the reverse direction to return to the initial set state shown in FIG. At this time, the first connector 1 is covered with a new first connector cap 3, and the second connector 2 is also covered with a new second connector cap 4.

<Terminology for superordinate concepts and subordinate concepts>
The mechanisms such as the lid support block 600 and the link lever 602 that interlock the opening / closing lid 6 and the auxiliary holder 51 described in FIG. 8 rotate the first connector 1 around the axis X1 to thereby connect the first connector 1 and the first connector. This corresponds to a connector rotating means for loosening the coupling of the cap 3.

  In the present embodiment, the auxiliary holder 51 and the compression coil spring 52 (corresponding to the holder biasing means) correspond to a connector holder moving means that allows the first connector holder 50 to move in the direction of the axis X1.

  In the present embodiment, the cylindrical cam 27 that rotates in conjunction with the operation unit 7, the cam groove 27a formed in the cylindrical cam 27, the cam pin 80p that follows the cam groove 27a, the holder support 80, and the like described in FIG. , Cap separating means for separating the first connector 1 and the first connector cap 3 from each other along the axial direction, the first connector 1 and the second connector 2, and the first connector cap 3 and the second connector cap 4, respectively. It functions as a connector connecting means for connecting.

  In the present embodiment, the cylindrical cam 27, the transmission member 29, the transmission gear 29a, the coupling gear 81a, the drive shaft 81, the gear unit (FIG. 12), etc. that rotate in conjunction with the operation unit 7 described in FIGS. Functions as a holder rotating means for rotating the first connector cap 3 and the second connector 2 around a predetermined axis.

<Another embodiment>
The operation angle of the operation portion 7 and the cam groove 27a of the cylindrical cam 27 is not limited to this embodiment, and can be determined as appropriate in consideration of ease of use. Also, how many times the first, second, and third operation areas S1, S2, and S3 are allocated in the entire operation range can be determined as appropriate. In addition, as for the operation direction of the operation unit 7, it is possible to appropriately select whether the direction of the arrow A1 in FIG.

  In the present embodiment, the first connector cap 3 and the second connector 2 are supported by the holder and rotated. However, the first connector 1 and the second connector cap 4 may be rotated. In this case, when the first connector 1 and the first connector cap 3 are detached, it is preferable to rotate the first connector cap 3.

  In this embodiment, the insertion and removal with respect to the first connector 1 is a screw type (rotation operation and linear operation), and the insertion and removal with respect to the second connector 2 is only a linear operation, but the insertion and removal with respect to the second connector 2 is the first. As with the connector 1, a screw type may be adopted.

  In the present embodiment, the rotation angle of the opening / closing lid 6 is 90 °, but is not limited to this. For example, a large opening / closing angle of 90 ° or more may be used. In this case, since the rotation angle of the first connector holder 50 and the auxiliary holder 51 needs to be 90 °, a mechanism for adjusting the angle (intermediate gear or the like is interposed) is provided.

1 Patient side connector (first connector)
2 Dialysate side connector (second connector)
3 First connector cap 4 Second connector cap 5 Main body case 6 Opening / closing lid 7 Operation portion 27 Cylindrical cam 27a Cam groove 29 Transmission member 29a Transmission gear 29c Clutch operating surface 45 Second cap holder 50 First connector holder 50a Holder body 51 Auxiliary holder 52 Compression coil spring 60 First cap holder 70 Second connector holder 80 Holder support 80p Cam pin 81 Drive shaft 81a Connection gear 81b Drive gear 84 Gear holder 90 Tube guide member 92 Drive lever S1 First operation area S2 Second operation area S3 Third operation area

Claims (2)

In order to attach and detach the medical connector composed of the first connector and the second connector,
A first connector holder and a first cap holder capable of holding the first connector and the first connector cap, respectively, with the first connector cap being attached to the first connector;
A second connector holder and a second cap holder capable of holding the second connector and the second connector cap, respectively, with the second connector cap being attached to the second connector;
A main body case for holding a first connector holder, a first cap holder, a second connector holder and a second cap holder;
An open / close lid pivotally supported around a predetermined axis with respect to the main body case,
At least one of the first connector, the first connector cap, the second connector, and the second connector cap is a rotary connector or connector cap that can be coupled by rotating with respect to the corresponding connector or connector cap.
Of the first connector holder, the first cap holder, the second connector holder, and the second cap holder, at least one holder corresponding to the rotary connector or the connector cap is positioned eccentric from the rotation axis of the opening / closing lid It is a rotary holder that can rotate around the axis line
Rotating and loosening one of the first connector, the first connector cap, the second connector and the second connector cap by transmitting the rotational movement of the opening / closing lid to the rotary holder and rotating the holder, or A medical connector manual attachment / detachment device comprising a link lever for fastening. While the first connector holder and the second cap holder are arranged in parallel, the first cap holder and the second connector holder are arranged in parallel,
An operation unit for operating the connector detachment;
A cap separating means for separating the first connector and the first connector cap and separating the second connector and the second connector cap in the first operation region of the operation section;
In the second operation area following the first operation area, the first connector cap and the second connector arranged in parallel, or the first connector and the second connector cap are rotated around a predetermined axis, and the first connector and the second connector are rotated. A holder, and a holder rotating means for moving the first connector cap and the second connector cap so as to face each other;
In a third operation region following the second operation region, the first connector and the second connector, and a connector connecting means for connecting the first connector cap and the second connector cap, respectively.
2. The manual attachment / detachment device for a medical connector according to claim 1, wherein a rotation axis of the holder rotating means is located between a rotation axis of the opening / closing lid and a rotation axis of the rotary holder. .

Images