JP4046286B2 - Connector removal device - Google Patents

Description

  The present invention relates to a device for separating and connecting a screw connection type connector, and more particularly to a connector detaching device applied to medical use, for example, separation and connection of a tube connector for peritoneal dialysis.

Conventionally, a screw-type connector is provided on both the tube connected to the patient used in the peritoneal dialysis equipment and the tube connected to the bag containing the dialysate, and this connector is removed. The patient side and the bag containing the dialysate are disconnected or connected, and this operation is required to be performed in an extremely short time based on an environment that can prevent the invasion of bacteria. .

The prior art of the connector attaching / detaching apparatus will be described using the following patent documents.
JP-A-8-725 (6th page, FIG. 4) Japanese Patent No. 3455701 JP 2002-224214 A

  For example, an automatic connector connection device disclosed in Patent Document 1 is known as a device for meeting the above demand. In this example, as schematically shown in FIG. 3, in the connector connecting device 100, a combination of the base part 102 of the patient side connector and the sealing plug 103 of the patient side connector is screwed, and the connector of the dialysate bag 200 After inserting the base portion 202 and the set to which the sealing plug 203 is screwed, the motor M1 is driven to loosen the screws of both sets. Next, the base part 202 of the dialysate side connector and the sealing plug 103 of the patient side connector are moved rightward by the motor M2. Next, the base part 202 of the dialysate side connector and the sealing plug 103 of the patient side connector shown in FIG. 3 are moved upward by the motor M3, further moved leftward by the motor M2, and then the motor M1. A series of operations is completed by tightening the base portions 102 and 202 of the connector. In addition, 101 is a patient side tube, 104 is a patient, 201 is a dialysate side tube, and 204 is an empty bag.

  However, in the example shown in FIG. 3 described above, the connector is separated, moved, and tightened by the power of the motor and the like, and the operation can be completed easily in a short time. Since a complicated electric control circuit is required by using three, there is a problem that it becomes unusable when an electrical trouble occurs and a problem that the number of parts increases.

  As an apparatus for improving such a problem, a connector manual attachment / detachment apparatus of Patent Document 2 previously filed by the same applicant is disclosed. 4 to 8 show such a conventional apparatus. FIG. 4 is a front view of the medical connector attaching / detaching device 10, FIG. 5 is a side view, 1 is a housing, 2 is a lid, and 3 is an operation handle. , 4 are rubber feet, and 5 is a suction cup. The housing 1 is positioned on the desk by the rubber feet 4 and the suction cups 5 and is operated by operating the operation handle 3.

  In addition, the connector holding portion 20 that holds the base portion 102 of the patient side connector and the sealing plug 203 of the dialysis fluid bag side connector, and the sealing portion 103 of the patient side connector and the base portion 202 of the dialysis fluid side connector are provided. A detachable portion 16 for holding and rotating, and a mechanism portion 17 for driving the connector holding portion 20 and the detachable portion 16 in conjunction with each other are provided in the mechanism portion 17 as shown in FIG. By rotating the handle 3, the patient-side connector sealing plug 103 and the dialysate-side connector base portion 202 are rotated by the detachable portion 16 in the first rotation, and the patient-side connector base portion 102, respectively. Is separated from the sealing plug 203 of the dialysate-side connector, and the sealing plug 203 of the dialysate-side connector is separated from the base 202 of the dialysate-side connector, and the connector holding portion 20 is rotated by the second rotation. Move the patient The base portion 102 of the side connector and the base portion 202 of the dialysate side connector are opposed to each other, and the base portion 102 of the patient side connector and the base portion 202 of the dialysate side connector are screwed and fastened in the third rotation. It is constituted as follows.

  6 is a state in which the lid 2 of the housing 1 is opened, and FIG. 7 is a longitudinal front view showing the relationship between the detachable portion 16 and the drive gear of the mechanism portion 17. An operation handle 3 is fixed at a position protruding outward from the housing. Further, as shown in the cross-sectional plan view of FIG. 8, two bevel gears 22-1 and 22-2 are fixed to the operation shaft 21 with an appropriate distance therebetween so that both bevel gear surfaces face each other. A gear set in which a bevel gear 23-1 meshing with the gear 22-1 and a partial gear 24 excluding some teeth are integrated, and a bevel gear 23-2 meshing with the bevel gear 22-2 and a part thereof A pair of gears integrated with the toothless gear 25 excluding the teeth is rotatably supported by two support shafts 40 and 41 provided in parallel with each other and spaced apart from each other by a predetermined distance. 41 is supported near the side surface of the housing by a bearing plate standing up from the substrate, and the holder on the attachment / detachment portion 16 is rotated by the rotation of the operation handle via the intermittent gears 24 and 25. It has become. The detachable portion 16 includes a gear 38 that meshes with the toothless gears 24 and 25 of the mechanism portion 17, gears 36 and 37 that mesh with the gear 38, and a gear 34 that is coupled to a holder on the detachable portion 16. And 35 are provided.

  10 to 13 show the relative positions of the gears, the drive pin 29 of the drive arm 26, and the U-shaped cam 61. The position in FIG. 10 shows the meshing state when the handle 13 is at the origin position, and the groove 16-3 for inserting the tubes provided in the gears 34 and 35 integral with each holder is directed right above. Further, the part of the toothless gear 25 that is notched is opposed to the gear 38, and the part of the toothless gear 24 that is opposite to the gear 38 is toothed. The position of the drive pin 29 of the drive arm 26 is at point A, which is the 3 o'clock position of the watch. Here, when the handle 3 is rotated about 60 degrees from the origin position, the toothless gear 24 meshes with the gear 36 via the gear 38 and rotates in the direction of the arrow to rotate the gears 34 and 35 counterclockwise. The position of the drive pin 29 of the drive arm 26 is rotated 180 degrees to a point B which is the 9 o'clock position of the watch.

  In this process, if the groove 16-3 for inserting the tube into the holder provided in the gear 34 comes to a position facing the gear 36, the gear 34 will not mesh with the gear 36, so that it cannot rotate. The gear 37 meshes with the gear 34 so that the rotation of the gear 38 is transmitted to the gear 34.

  In the position shown in FIG. 11, the toothless gear 25 is located at a position where the tooth is cut away from the gear 38, and the toothless gear 24 is located at a position where the toothed portion is cut away from the gear 38. It will not rotate in the operation of 3.

  Further, when the handle 3 is rotated 60 degrees, the drive pin 29 of the drive arm 26 is in the A position as shown in FIG. The portion without 24 teeth is positioned to face the gear 38, and the rotation of the toothless gear 25 is transmitted to the gear 38. Although the rotation direction of the handle 3 is the same, the rotation direction of the toothless gear 25 is transmitted from the bevel gears 22-2 and 23-2, so that the rotation direction of the gear 38 is opposite to that of the toothless gear 24. The gears 34 and 35 integrated with the holder rotate in the opposite direction, that is, clockwise, as shown in FIG. 10, and when the handle 3 is further rotated 60 degrees, the position shown in FIG. 13 is obtained. The position of the drive pin 29 is further rotated 180 degrees to the position of point B, which is the 9 o'clock position of the watch.

  FIG. 14 and FIG. 15 are explanatory diagrams for explaining a situation in which the connector of the patient 104 side and the connector of the dialysate bag 200 is detached in the peritoneal dialysis apparatus using the conventional apparatus. FIG. 14 shows a preparation state, in which the patient side tube 101 connected to the patient 104 and the base part 102 of the patient side connector are integrally joined, and the open end of the base part 102 of the patient side connector is the sealing plug 103. The tube 201 is connected to the dialysate bag 200, and the base portion 202 of the dialysate side connector is integrally coupled to the tube 201, and the open end of the base portion 202 of the dialysate side connector is connected to the tube 201. Is sealed with a sealing plug 203.

  The base part 102 of the patient side connector is attached to the lower groove of the connector holding part 20, the sealing plug 103 is attached to the lower holder of the detachable part 16, and the base part 202 of the dialysate side connector is attached to the upper holder of the detachable part 16. And a sealing plug 203 of the dialysate side connector is installed in the upper groove of the connector holding part 20.

  When the handle 3 is rotated about 60 degrees from the origin position as shown in FIGS. 10 to 13, the holder of the attachment / detachment portion 16 rotates and the screw of the screw portion of the connector rotates so as to loosen. Is released. Further, when the handle 3 is rotated 60 degrees, the holder of the attachment / detachment portion 16 does not rotate, and the connector holding portion 20 moves upward in a U shape and is held in the groove of the connector holding portion 20 so that the base portion of the patient side connector As shown in FIG. 15, the position 102 faces the dialysate-side connector 202 held by the holder of the attachment / detachment portion 16. Further, when the handle 3 is rotated 60 degrees, the base 202 of the dialysate connector held by the holder of the detachable part 16 is rotated and fixed to the base 102 of the patient connector.

  Next, a set in which the base part 102 of the patient side connector and the base part 202 of the dialysis side connector are connected from the groove of the connector holding part 20 and the holder of the detachable part 16, the sealing plug 103 of the patient side connector, and the dialysate side The connector sealing plug 203 is removed, and the connection between the patient side connector and the dialysate side connector is completed.

  When the handle 3 is returned to the origin position, the operation direction of the handle 3 is reversed, so that the order of FIG. 13 to FIG. 10 is followed, and the position of the drive pin 29 of the drive arm 26 is initially B at the position of FIG. When the handle 3 is rotated 60 degrees, the drive arm 26 is rotated 180 degrees counterclockwise to the point A of the drive pin 29 of the drive arm 26 in FIG. 12, and when the handle 3 is further rotated 60 degrees. The drive pin 29 engages with the bifurcated projection of the arm 30 provided on the slider 31 and the slider 31 moves in a U-shape, so that the position of the drive pin 29 becomes point B, and the drive pin 29 is rotated by the next 60 degrees. Rotates 180 degrees and returns to the origin of the point A position.

  When the base part 102 of the patient side connector and the base part 202 of the dialysate side connector are separated, the base part 102 of the patient side connector and the base part 202 of the dialysate side connector are coupled as shown in FIG. In this state, they are respectively attached to the lower groove of the connector holding portion 20 and the lower holder of the detachable portion 16, and new sterilized patient side connectors are attached to the upper groove of the connector holding portion 20 and the upper holder of the detachable portion 16. When a set of the sealing plug 103 and the sealing plug 203 of the dialysate side connector is attached and the handle 3 is rotated about 60 degrees, the base portion 102 of the patient side connector and the base portion 202 of the dialysate side connector If the screw connection is loose, and the screw connection between the new sterilized patient-side connector sealing plug 103 and the dialysate-side connector sealing plug 203 is loosened and further rotated by 60 degrees, as shown in FIG. Side connector A sealing plug 103 and a position facing part 102 is moved upward. When the patient is further rotated by 60 degrees, the sealing plug 103 is screwed into the base portion 102 of the patient side connector to complete the separation of the patient side connector. The base part 202 of the dialysate side connector and the sealing plug 203 are removed, and the handle 3 is returned to the origin position to complete the operation.

Since the device 10 is a device for attaching and detaching the connector on the patient side and the connector on the dialysate side, it is necessary to keep the connector holding portion 20 and the detachable portion 16 for attaching the connector clean. It is timely implemented to remove the part from the main body mechanism and clean it. However, when the detachable part 16 is removed from the main body mechanism part, the gears 24, 25 and the gear 38 of the detachable part 16 are disengaged, and the gears 34, 35 of the detachable part move freely, and the detachable part 16 is assembled to the mechanism part again. When attaching, there is a problem that the relative positions of the gears 34 and 35 are not fixed and accurate assembly is not possible. Therefore, this device is provided with a gear lock mechanism that prevents the gears 34 and 35 from rotating freely when the detachable portion 16 is detached from the mechanism portion.

In the above gear lock mechanism, if the gear lock mechanism part is accidentally touched strongly or the rotating part is turned strongly when it is removed from the main body part, the phase of the transmission part with the mechanism part will shift, There is a problem that normal operation cannot be performed, and in order to restore this state, there is a problem that it is necessary to disassemble and readjust the detachable part by a dedicated person.

In the connector attaching / detaching device of Patent Document 3 filed by the same applicant as an apparatus for improving the above problem, the gear locking mechanism includes a pin projecting from an end face of a gear provided on a holder in the attaching / detaching portion. , A substantially semicircular arc groove concentric with the gear formed on the bearing plate of the gear to be engaged with the pin, and a shaft between the gear shaft for driving the gear in the detachable portion and the bearing plate. It is the structure which consists of the turned spring-shaped return spring.

However, in the configuration described above, the operation of the gear is restricted by the gear locking mechanism, but the slider 31 can be moved manually only by the configuration in which the position at the start and end of the slider 31 is fixed by a spring. There is a problem that the user may accidentally move, so that the start / end point position of the slider 31 is shifted and normal operation cannot be performed. The present invention is a device for separating and connecting a screw connection type connector that eliminates the disadvantages found in these conventional examples, and is particularly suitable for medical applications such as separation and connection of a peritoneal dialysis tube connector. An object is to provide an apparatus.

A connector attaching / detaching device according to the present invention includes a connector holding portion for holding a base portion of a patient side connector (hereinafter referred to as a first connector) and a sealing plug of a dialysate side connector (hereinafter referred to as a second connector). And a detachable part for holding and rotating the first connector sealing plug and the second connector base part, and a mechanism part for driving the connector holding part and the detachable part in conjunction with each other. , An operating shaft in which the mechanism part is rotated through a handle, and two teeth lacking some of the teeth that are synchronously rotated in opposite directions through gears by the rotation of the operating shaft. It consists of a missing gear and a slider that holds the connector holding part, which is moved left and right and back and forth via a pin that is moved around the guide cam by the operation shaft, and rotates the handle in a direction by a predetermined angle. First rotation to make From the first connector base and the second connector sealing plug, the first connector sealing plug and the second connector base are rotated in one direction via the toothed gear at the detachable portion. The first connector base and the second connector base are moved through the slider relative to the detachable part in a second rotation that is separated and further rotated by a predetermined angle in one direction. And the first connector base part and the second connector base part are rotated in opposite directions via the toothed gears in a third rotation that rotates a predetermined angle in one direction. In the connector attaching / detaching device in which the first to third rotations are one operation to be fastened, it is possible to prevent a malfunction by having a slider lock mechanism for restricting the operation of the slider at the position of the start / end of the slider operation. To.

The connector detaching apparatus of the present invention holds a connector holding portion for holding the first connector base and the second connector sealing plug, and holds the first connector sealing plug and the second connector base. An operation shaft comprising a detachable portion for rotation, a mechanism portion for driving the connector holding portion and the detachable portion in conjunction with each other, and an operation shaft for rotating the mechanism portion via a handle, and the operation shaft Through two gears lacking some of the teeth that are synchronously rotated in opposite directions through the gears, and a pin that is moved around the guide cam by the operating shaft. The first connector sealing plug and the second connector by a first rotation that rotates the handle in one direction by a predetermined angle. Front part and front part The connector holding part is rotated by a second rotation that is rotated in one direction through a toothless gear to be separated from the second connector sealing plug and the first connector base part, and further rotated by a predetermined angle in one direction. It moves through the slider relative to the detachable part, makes the first connector base part and the first connector sealing plug face each other, and further rotates the predetermined angle in one direction by the third rotation. In the connector attaching / detaching device in which the first to third rotations are one operation, wherein the first connector base and the first connector sealing plug are rotated in the opposite directions via the toothless gears and screwed together. , By having a slider lock mechanism that restricts the movement of the slider at the position where the slider starts and ends, it is possible to prevent malfunction.

As described above, according to the connector attaching / detaching device of the present invention, the first connector can be easily operated by only one operation of the handle without touching the open ends of the first connector and the second connector. When not only can the connection and separation of the second connector, there is a significant benefit, such as normal operation is ensured for the slider by said slider lock mechanism is fixed at the start and end points.

  Hereinafter, the details of the present invention will be described using an embodiment of a medical connector attaching / detaching apparatus. FIG. 1 is a longitudinal sectional front view of the apparatus of the present invention, and FIG. 2 is a plan view of a mechanism section of the present invention. As shown in the figure, two bearings (not shown) for supporting the operation shaft 21 are provided on the substrate 1-1 of the housing 1 at an appropriate distance from each other. The operation handle 3 is fixed to the protruding position. Further, as shown in the cross-sectional plan view of FIG. 2, two bevel gears 22-1 and 22-2 are fixed to the operation shaft 21 with an appropriate distance therebetween so that both bevel gear surfaces face each other. A bevel gear 27 is fixed on the inner side, a bevel gear 23-1 that meshes with the bevel gear 22-1, a partial gear 24 excluding some teeth, and a cam 70 fixed to the partial gear 24. A gear in which an integrated gear set, a bevel gear 23-2 meshing with the bevel gear 22-2, a partial gear 25 excluding some teeth, and a cam 71 fixed to the partial gear 25 are integrated. The pair is rotatably supported by two support shafts 40 and 41 provided in parallel with each other and separated from each other by a predetermined distance, and close to the side surface of the housing 1 of the support shafts 40 and 41, the substrate It is supported by the bearing plate that stands up from 1-1, and the tooth missing teeth are rotated by the rotation of the operation handle 3. 24 and 25 transmits the forward and reverse rotation to the gear 39 the cam 72 is secured via, it is possible to rotate the holder on the desorption unit 16. The detachable portion 16 includes the gear 39 that meshes with the intermittent gears 24 and 25 of the mechanism portion 17, the gear 38 that meshes with the gear 39, the gears 36 and 37 that mesh with the gear 38, respectively. Gears 34 and 35 coupled to the holder on the detachable portion 16 are provided. A bevel gear 28 that meshes with the bevel gear 27 and a gear set in which the drive arm 26 fixed to the bevel gear 28 is integrated are rotatably supported by a support shaft 60, and a drive pin is mounted on the drive arm 26. 29 is slidably assembled, and the drive pin 29 is configured to operate along the U-shaped cam 61. The drive pin 29 is rotated via the bevel gears 27 and 28 by the rotation of the handle 3. Driven. Lock levers 80 and 81 that can engage with the slider 84 are rotatably provided on the support shafts 85 and 86 on both sides of the drive arm 26, and the lock levers 80 and 81 are biased by springs 82 and 83.

  FIGS. 18 to 21 show the operational positional relationship of each gear, and FIGS. 22 to 25 show the relative positions of the drive pin 29 of the drive arm 26 and the U-shaped cam 61 at that time. 18 and 22 show the meshing state when the handle 3 is at the origin position, and the groove 16-3 for inserting the tubes provided in the gears 34 and 35 integral with each holder is directed upward. ing. Further, the part of the toothless gear 25 that is notched is opposed to the gear 39, and the part of the toothless gear 24 that is opposite to the gear 39 is toothed. The position of the drive pin 29 of the drive arm 26 is at point A, which is the 3 o'clock position of the watch. At this time, the drive lever 26 releases the urging force of the lock lever 81, and the lock lever 80 on the opposite side is engaged with the protruding portion of the slider 84 to restrict and stop the movement of the slider 84. Here, when the handle 3 is rotated about 60 degrees from the origin position, the toothless gear 24 meshes with the gear 36 via the gear 39 and the gear 38 and rotates in the direction of the arrow to rotate the gears 34 and 35 counterclockwise. 19 and FIG. 23, and the position of the drive pin 29 of the drive arm 26 is rotated by 180 degrees in the direction of the arrow to become point B which is the 9 o'clock position of the watch. At this time, the lock lever 80 is released from the restriction to the slider 84 by the driving arm 26 and can be operated.

  In this process, if the groove 16-3 for inserting the tube into the holder provided in the gear 34 comes to a position facing the gear 36, the gear 34 will not mesh with the gear 36, so that it cannot rotate. The gear 37 meshes with the gear 34 so that the rotation of the gear 39 is transmitted to the gear 34 via the gear 38.

  In the position of FIG. 19, the toothless gear 25 is located at a position where the tooth is cut away from the gear 38, and the toothless gear 24 is located at a position where the toothed portion is cut away from the gear 39. 3, the cam 70 fixed to the toothless gear 24 and the cam 72 fixed to the gear 39 mesh with each other on the arcuate surfaces and slide. Thus, the rotation of the gear 39 is stopped without transmitting the rotation of the gear 25.

  Further, when the handle 3 is rotated 60 degrees, the drive pin 29 of the drive arm 26 is in the A position in the state shown in FIGS. 20 and 24, and the portion where the teeth of the missing gear 25 are opposed to the gear 39. Thus, the toothless portion of the toothless gear 24 becomes a position facing the gear 39, and the rotation of the toothless gear 25 is transmitted to the gear 39. During this 60-degree rotation, the gear 39 is stopped by the cam 70 and the cam 72, and when the portion of the toothless gear 25 has a position facing the gear 39, the engagement of the cam 70 and the cam 72 is established. Come off. At this time, the lock lever 81 is inserted while being expanded by the slider 84, and the lock lever 81 is expanded by the drive arm 26 at the A position. Although the rotation direction of the handle 3 is the same, the rotation direction of the toothless gear 25 is transmitted from the bevel gears 22-2 and 23-2, so that the rotation direction of the gear 39 is opposite to that of the toothless gear 24. The gears 34 and 35 integrated with the holder rotate in the opposite direction to that in FIG. 18, that is, clockwise, and when the handle 3 is further rotated 60 degrees, the positions shown in FIGS. 21 and 25 are obtained. The position of the drive pin 29 of the drive arm 26 is further rotated 180 degrees to a position B which is a 9 o'clock position of the watch. At this time, the movement of the slider 84 is restricted and stopped by the lock lever 81. In the above explanation of the operation, when the screw part of the connector is attached to the holder and the handle 3 is operated as described above, the screw part is loosened by the first 60 degrees rotation, and the screw part is not rotated by the next 60 degree rotation. , It shows that the screw part comes to be tightened by the last 60 degree rotation. In addition, as described above, the slider 84 is controlled and stopped by the lock levers 80 and 81 except for the operating point, that is, between the first 60 degrees and the last 60 degrees of the handle rotation angle, and can be operated with external force. It has no configuration.

  Although the operation has been described with the rotation angle of the handle 3 being 180 degrees, it is obvious that the present invention can be realized at other angles by changing the gear reduction ratio. In the detailed description of the present invention, the drive source of the connector attaching / detaching device has been described as being manually operated by the handle. However, the same effect as in the present invention can be obtained by using an electric drive source such as a motor for the operation shaft. It is obvious that Further, the present invention aims to improve the performance of a medical screw-type connector detachment apparatus. However, the present invention can be applied to a screw-type connector detachment apparatus other than medical use.

It is an apparatus vertical front view of the connector removal | desorption apparatus of this invention. It is a mechanism part crossing top view of the connector removal | desorption apparatus of this invention. It is outline | summary explanatory drawing of the connector removal apparatus of a prior art. It is a front view of the conventional medical connector removal | desorption apparatus. It is a side view of the medical connector removal | desorption apparatus shown in FIG. It is a top view in the state where the lid of the medical connector detaching device shown in FIG. 4 was opened. It is a vertical front view of the detachable apparatus shown in FIG. It is a top view of the lower part of the desorption apparatus shown in FIG. It is operation | movement explanatory drawing of the medical connector removal | desorption apparatus of a prior art. It is operation | movement explanatory drawing of the principal part of the conventional apparatus. It is operation | movement explanatory drawing of the principal part of the conventional apparatus. It is operation | movement explanatory drawing of the principal part of the conventional apparatus. It is operation | movement explanatory drawing of the principal part of the conventional apparatus. It is a top view explaining the operation condition when connecting the patient side and the dialysate side in the conventional medical connector removal | desorption apparatus. It is a top view explaining the operation condition when connecting the patient side and the dialysate side in the conventional medical connector removal | desorption apparatus. It is explanatory drawing of the operation condition when separating the patient side and the dialysate side in the conventional medical connector removal | desorption apparatus. It is explanatory drawing of the operation condition when separating the patient side and the dialysate side in the conventional medical connector removal | desorption apparatus. It is operation | movement explanatory drawing of the principal part in the connector removal | desorption apparatus of this invention. It is operation | movement explanatory drawing of the principal part in the connector removal | desorption apparatus of this invention. It is operation | movement explanatory drawing of the principal part in the connector removal | desorption apparatus of this invention. It is operation | movement explanatory drawing of the principal part in the connector removal | desorption apparatus of this invention. It is operation | movement explanatory drawing of the principal part in the connector removal | desorption apparatus of this invention. It is operation | movement explanatory drawing of the principal part in the connector removal | desorption apparatus of this invention. It is operation | movement explanatory drawing of the principal part in the connector removal | desorption apparatus of this invention. It is operation | movement explanatory drawing of the principal part in the connector removal | desorption apparatus of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 1-1 Board | substrate 2 Lid 3 Operation handle 4 Rubber foot 5 Suction cup 10 Connector removal | desorption apparatus 16 Desorption part 16-1 Holder 16-2 Holder 16-3 Groove 17 Mechanism part 20 Connector holding part 21 Operation shaft 22-1 Umbrella Gear 22-2 Bevel gear 23-1 Bevel gear 23-2 Bevel gear 24 Partial gear 25 Partial gear 26 Drive arm 27 Bevel gear 28 Bevel gear 29 Drive pin 30 Conventional bifurcated protrusion 31 Conventional slider 34 Gear 35 integrated with the holder Gear 36 integrated with the holder 36 Gear 37 Gear 38 Gear 39 Gear 40 Support shaft 41 Support shaft 57 Fixing screw 60 Support shaft 61 U-shaped cam 70 Cam 71 Cam 72 Cam 80 Lock lever 81 Lock lever 82 Spring 83 Spring 84 Slider 85 of the present invention Support shaft 86 Support shaft 100 Connector attaching / detaching device 101 Patient side tube 102 Patient side connector (first connector) Part 103 Seal plug 104 of patient side connector (first connector) Patient 200 Dialysate bag 200-1 Dialysate bag 201 Dialysate side tube 202 Base part 203 of dialysate side connector (second connector) Dialysate side Connector (second connector) sealing plug 204 empty bag

Claims (2)

A connector holding portion for holding the first connector base and the second connector sealing plug, a detachable portion for holding and rotating the first connector sealing plug and the second connector base, and A connector holding portion and a mechanism portion for driving the attachment / detachment portion in conjunction with each other. An operation shaft that is rotated via a handle and a gear that is rotated by the rotation of the operation shaft. It is moved left and right, back and forth via two toothless gears each lacking some of its teeth that are synchronously rotated in opposite directions, and a pin that is moved around the guide cam by the operating shaft. A slider for holding the connector holding portion, and the first connector sealing plug and the second connector base portion are attached and detached at the first rotation by rotating the handle in one direction by a predetermined angle. Rotated in one direction via the missing gear The first connector base portion and the second connector sealing plug are separated from each other and further rotated by a predetermined angle in one direction to move the connector holding portion relative to the detachable portion via the slider. The first connector base and the second connector base in a third rotation in which the first connector base and the second connector base are opposed to each other and further rotated by a predetermined angle in one direction. In the connector attaching / detaching device in which the first to third rotations are one operation, the slider is operated at the position of the start / end of the slider operation. A connector attaching / detaching device having a slider lock mechanism for regulating. A connector holding portion for holding the first connector base and the second connector sealing plug, a detachable portion for holding and rotating the first connector sealing plug and the second connector base, and A connector holding portion and a mechanism portion for driving the attachment / detachment portion in conjunction with each other. An operation shaft that is rotated via a handle and a gear that is rotated by the rotation of the operation shaft. It is moved left and right, back and forth via two toothless gears each lacking some of its teeth that are synchronously rotated in opposite directions, and a pin that is moved around the guide cam by the operating shaft. A slider for holding the connector holding portion, and the first connector sealing plug and the second connector base portion are attached and detached at the first rotation by rotating the handle in one direction by a predetermined angle. Rotated in one direction via the missing gear The second connector sealing plug and the first connector base portion are separated from each other, and the connector holding portion is moved relative to the detachable portion through the slider in a second rotation that is further rotated by a predetermined angle in one direction. The first connector base and the first connector sealing plug are made to face each other, and further rotated by a predetermined angle in one direction by a predetermined angle to rotate the first connector base and the first connector seal. In the connector attaching / detaching device in which the stopper 1 is rotated in the opposite direction via the toothless gear and screwed and fastened, the first to third rotations are one operation, and the slider is moved to the position where the slider operation starts and ends. connector desorption apparatus further comprising a slider lock mechanism for restricting the operation.