JP3455701B2 - Manual connector for medical connector - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for separating and connecting medical connectors, and more particularly to a manual connector detaching / attaching medical connector for medical use, for example, separating and connecting a peritoneal dialysis tube connector. It relates to the device.

[0002]

2. Description of the Related Art Conventionally, a screw-type connector has been provided on both a tube connected to a patient used in a peritoneal dialysis facility and a tube connected to a bag containing a dialysate, and this connector has been used. The bag containing the dialysate is disconnected or connected to the patient side by removing and attaching it, and this operation can be reliably performed in an extremely short time under an environment that can prevent the infiltration of bacteria. Has been requested.

Japanese Unexamined Patent Publication (Kokai) No. 8-725 discloses an automatic connector attaching / detaching device using a motor which meets such a demand. In this example, as shown schematically in FIG. 15, a set in which a base portion 102 of a patient-side connector and a sealing plug 103 of a patient-side connector are screwed into a connector attaching / detaching device 100, and a connector of a dialysate bag 200 is attached. Motobu 202
After inserting the and the set with the sealing plug 203 screwed, the motor M1 is driven to loosen the screws of both sets. Next, the motor M2 moves the dial-side connector base portion 202 and the patient-side connector sealing plug 103 to the right. Next, the motor M3 moves the base portion 202 of the dialysate side connector and the sealing plug 103 of the patient side connector of FIG. 15 upward, and the motor M2 moves leftward, and then the motor M1. By tightening the base portions 102 and 202 of the connector, a series of operations is completed. In addition, 101 is a patient side tube, 104 is a patient, 2
01 is a dialysate side tube, and 204 is an empty bag.

FIG. 16 shows a manual connector attaching / detaching device 300.
For example: In this example, rotate the knob 380 by hand to loosen the connector, then move the knob 380 to the right,
Further, it moves downward in the drawing, further moves to the left side, and then rotates again to complete the separation, movement and fastening of the connector.

[0005]

However, in the first example shown in FIG. 15, the connector is separated, moved, and tightened by the power of the motor, and the operation can be completed easily in a short time. However, since three motors are used and a complicated electric control circuit is required, there is a problem that the electric motor cannot be used when an electric trouble occurs.

In the second example shown in FIG. 16, the motor is not used, but the manual operation procedure is complicated and the operator needs to operate with nerves while considering the procedure, which imposes a heavy burden on the operator. There are problems such as.

SUMMARY OF THE INVENTION An object of the present invention is to provide a manual type device which has a simple structure, does not require the operator to consider the procedure, has a good operability, has a smooth movement, and is highly reliable.

[0008]

SUMMARY OF THE INVENTION A manual connector attaching / detaching device for a medical connector according to the present invention comprises a base portion (102) of a patient side connector.
And a connector holding part (20) for holding a sealing plug (203) of the dialysate bag side connector, a sealing plug (103) of the patient side connector and a base part (202) of the dialysate side connector. desorption portion for rotating (16), the connector holding portion (20), become more and mechanism for driving by interlocking the said desorption unit (16), the mechanism portion is c
An operating shaft (21) which is rotated through the handle (13),
The rotation of the operating shaft (21) causes the gears (22-1 and 22-2
2-2) are rotated in the opposite directions.
Two toothless gears (24,25) lacking some teeth of
With the operation shaft (21), the circumference of the guide cam (61) is
Moves left and right, front and back via the pin (29)
Which holds the connector holding part (20)
It consists of a dar (31) and the handle (13)
The patient side connector can be rotated by the first rotation.
Sealing plug (103) and dialysate side connector base (202)
And in the detachable part (16) through the toothless gear in one direction
Rotate and dialyze with the base part (102) of the patient side connector.
Separate from the sealing plug (203) of the liquid side connector,
The connector holding part (2
0) to the slider (16) relative to the detachable part (16).
(31) to move the patient side connector base (10
2) and the base part (202) of the dialysate side connector facing each other
Therefore, in the third rotation that rotates it further in one direction,
The source part (102) of the worker side connector and the source of the dialysate side connector
Rotate the part (202) in the opposite direction via the toothed gear
The total of the 1st to 3rd rotations that are screwed together is 180 °
And characterized in that.

[0009]

Further, the detachable portion prevents the holders, which are provided on the detachable portion, between the sealing plug of the patient side connector and the base portion of the dialysate side connector, from rotating when detached from the mechanism portion. It is characterized by having a lock mechanism.

Further, the lock mechanism is such that a plate-like portion slidably provided along the detachable portion, an elongated hole provided in the plate-like portion, a spring inserted in the elongated hole, and the detachable member. A pin to be inserted into the elongated hole provided in the portion, and when the detachable portion is removed, the plate-like portion is pressed by the spring, and the head of the plate-like portion prevents rotation of the holder. It is characterized by being a position.

The medical connector manual detaching / attaching device of the present invention comprises a connector holding portion (20) for holding the base portion (102) of the patient side connector and the sealing plug (203) of the dialysate bag side connector. A detachable part (16) for holding and rotating the sealing plug (103) of the patient side connector and the base part (202) of the dialysate side connector, and the connector holding part (2)
0) and a mechanism part for driving the detachable part (16) in conjunction with each other, and the mechanism part is the handle (13).
The operation shaft (21) rotated via the
By the rotation of 1) through the gears (22-1 and 22-2)
Each of which is rotated in the opposite direction,
The two missing tooth gears (24, 25) and the operating shaft (2
Moved around guide cam (61) by 1)
It can be moved left and right, front and back via the pin (29),
A slider (31) for holding the connector holding portion (20),
And rotating the handle (13) in one direction
In the first rotation, the sealing plug (10
3) and the base part (202) of the dialysate side connector are detachable parts
In (16), rotate it in one direction through the toothless gear.
Sealing plug (203) of the dialysate side connector and the patient side connector
Separate from the root of the Kuta (102) and rotate in one direction.
The connector holding portion (20) is removed by the second rotation to close it.
Via the slider (31) relative to the wearing part (16)
The patient connector (102) and the patient connector
Face the sealing plug (103) of the nectar, and
The patient-side connector can be rotated by the third rotation.
The sealing plug (103) of the base part (102) and the patient side connector
It is characterized in that the total of the above-mentioned first to third rotations, which are rotated in the opposite directions via the above tooth-missing gears and screwed and fastened , is 180 ° .

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a bird's-eye view showing an external appearance of a manual connector attaching / detaching device 10 for a medical connector according to the present invention. 11 is a rubber foot provided on the bottom surface, 12 is a sucker, 13 is an operating handle, and 14 is a handle. Is the lid.

Since the device 10 of the present invention is fixed on the desk by the rubber feet 11 or the suction cups 12, the operation handle 13 can be easily operated, and the device 10 can be moved by the rubber feet 1 described above.
1. It can be easily done by pulling the suction cup 12 off the desk.

FIG. 2 is a plan view of the device 10 of the present invention with the lid 14 opened, and the connector is held on the partition plate 70 mounted on the upper surface of the mechanism portion (not shown) on which the handle 13 is mounted. The portion 20 and the detachable portion 16 for holding and rotating the connector are fixed by mounting screws 19, respectively, and the lid 15 of the holding portion is provided on the upper surface of the connector holding portion 20 so as to be openable and closable so as to prevent the connector from falling off. There is. In FIG. 2, the lid 15 of the holding unit 20 is shown in an open state.

The connector holding portion 20 has a structure shown in FIGS.
As shown in B, a groove 20-1 for holding the base portion 102 of the patient side connector and a sealing plug 203 of the dialysate side connector.
The groove 20-2 for holding the connector is provided in parallel at a certain distance, and the width of each groove is substantially the same as the width of the base portion 102 and the sealing plug 203 of the connector. It is easy to put on and take off and hold. A screw hole 20-3 for connecting with a slider 31 described later is provided. The detachable portion 16 for holding and rotating the connector holds a holder 16-1 for holding the sealing plug 103 of the patient side connector and a base portion 202 of the dialysate side connector as shown in FIG. Holders 16-2 are provided in parallel with each other with the same distance as between the grooves 20-1 and 20-2 of the connector holding portion 20, and the width of each groove is equal to the width of the connector holding portion. Each of the 20 grooves has the same width.

The connector holding portion 20 and the detachable portion 16
As shown in FIGS. 2, 6 and 7, a partition plate 70 for partitioning the upper and lower parts is provided between the mechanical section and the mechanism part. The partition plate 70 holds the connector as shown in FIGS. 4A and 4B. A square hole 70-1 in which the slider 31 holding the portion 20 is slidable, a square hole 70-2 through which the gear of the detachable portion 16 is inserted, and a square hole 70-2 for fixing the detachable portion 16 to the partition plate 70. A screw hole 70-3 for screwing the screw 19 is provided, and a stopper pin 32 for positioning the slider 31 is provided on the lower surface of the partition plate 70 along one side of the square hole 70-1.

FIG. 5 is a vertical sectional side view of the device 10 of the present invention, and FIG.
2 is a plan view showing a state in which a partition plate 70 and a mechanism above the partition plate 70 are removed, and a substrate 2-1 is provided on the bottom surface of the housing 2 of the device 10 of the present invention, and the operation shaft is provided on the substrate 2-1. Two bearings (not shown) that pivotally support 21 are provided at an appropriate distance from each other, and a handle 13 is fixed to a position of the operation shaft 21 protruding outside the housing 2. Further, two bevel gears 22-1 and 22-2 are fixed to the operation shaft 21 with an appropriate distance therebetween so that their bevel gear surfaces face each other and are fixed to each other, and the bevel gears mesh with the bevel gear 22-1. 23-1 and a toothless gear 24 having some teeth removed, and a bevel gear 23-2 that meshes with the bevel gear 22-2 and a toothless gear 25 having some teeth removed. And a gear set which is integrated with each other are rotatably supported by two support shafts 40 and 41 which are provided in parallel with each other and are separated from each other by a predetermined distance.
Is supported by a bearing plate 2-2 standing upright from the base plate 2-1 and is rotated by the rotation of the operation handle 13 via the toothless gears 24 and 25, and the holder 16 of the detachable portion 16 is attached as described later. Rotate -1 and 16-2.

Further, as shown in FIGS. 6 and 7, the substrate 2-
The two holding members 42 and 43 provided on the first unit separate two guide shafts 44 and 45 having a predetermined length from each other by a predetermined distance and support the guide shafts 44 and 45 in a direction perpendicular to the operation shaft 21. Sliding members 46 and 47 are slidably attached to 44 and 45, respectively, and these two holding members 42 and 43 and sliding members 46 and 4 are attached.
7, coil springs 48 and 49 are respectively inserted, and two sliding shafts 50 and 50 are provided between the two sliding members 46 and 47 in parallel with the operation shaft 21 and at a predetermined distance. 51 is arranged and both ends thereof are fixed to the sliding members 46 and 47. Further, the slider 31 is slidably engaged with the two sliding shafts 50 and 51, and the slider 31 is located at a position close to the substrate 2-1 of the housing and close to the operation shaft 21. An arm 30 having a bifurcated protrusion at its tip is provided.

Further, a third bevel gear 27 is provided between the two bevel gears 22-1 and 22-2 of the operating shaft 21, and the third bevel gear 27 is provided on the center line of the operating shaft 21 from the bottom surface of the substrate 2-1. A support shaft 60 is provided upright at an intermediate point between the two bevel gears 22-1 and 22-2, and the substrate 2-1 is coaxial with the support shaft 60.
9A to 9D, a guide cam 61 whose outer peripheral surface is formed in a U shape is provided, and the drive arm 26 is rotatably supported by the support shaft 60 and is provided at the tip of the drive arm 26. The guide pin 6 is provided with the drive pin 29 that engages with the elongated hole.
1 is slidably contacted with the outer peripheral surface of the drive arm 26 and
The bevel gear 28 connected to is meshed with the third bevel gear 27.

If the handle 13 is rotated about 60 degrees from the initial position, the third bevel gear 27 and the third bevel gear 28 are rotated.
The rotation of the drive arm 26 causes the drive pin 26 to rotate 180 degrees so that the drive pin 29 engages with the bifurcated protrusion of the arm 30 provided on the slider 31, and the handle 13 is further rotated 60 degrees. Along the outer peripheral surface of the V-shaped guide cam 61, the slider 31, the sliding shafts 50 and 51, and the sliding member 4 are provided.
6 and 47 are moved together in a U-shaped locus so as to be close to the sliding member 46, and as a result, the connector holding portion 20 connected to the slider 31 is moved in the U-shape. .

Further, in the device of the present invention, as shown in FIGS. 8A to 8C, gears 34 and 35 integrated with holders 16-1 and 16-2 for holding and rotating the connector and the gears 34 and 35 are formed at the same time. A gear 36 that meshes with the toothed gear 24, 2 that meshes with the gear 36 and has some of the teeth removed.
5, the gear 38 that meshes with the gear 5, the gear 38, and the gear 34.
Is provided with a gear 37 that meshes at the same time.

9A to 9D show the relative positions of the gears, the drive pin 29 of the drive arm 26, and the U-shaped cam 61.

The position of FIG. 9A shows the meshing condition when the handle 13 is at the origin position, and the holders 16-1, 16-
The groove 16-3 for inserting the tube, which is provided in the gears 34 and 35 integrated with the gear 2, faces upward. Further, in the tooth-chipped gear 25, the notched portion faces the gear 38,
The toothless gear 24 has a toothed portion facing the gear 38. The position of the drive pin 29 of the drive arm 26 is at the point A, which is the position at 3 o'clock of the timepiece. Here, when the handle 13 is rotated about 60 degrees from the initial position, the toothless gear 24 meshes with the gear 36 via the gear 38 and rotates in the directions of the arrows, respectively, and the gear 34 integrated with the holders 16-1 and 16-2. , 35
9B, the position of the drive pin 29 of the drive arm 26 rotates 180 degrees to the point B which is the 9 o'clock position of the clock.

In the process of this operation, when the groove 16-3 for inserting the tube into the holder 16-1 provided in the gear 34 comes to a position facing the gear 36, the gear 34 does not mesh with the gear 36 and cannot rotate. At that time, the gear 37 meshes with the gear 34 and acts to transmit the rotation of the gear 38 to the gear 34.

In the position of FIG. 9B, the tooth-chipped portion of the tooth-chipped gear 25 faces the gear 38, and the tooth-chipped gear 24 of the tooth-chipped gear 24 also faces the gear 38.
The gear 38 stops rotating due to the operation of the handle 13.

Further, when the handle 13 is rotated by 60 degrees, the drive pin 29 of the drive arm 26 becomes A as shown in FIG. 9C.
The toothless portion of the toothless gear 25 faces the gear 38, the toothless portion of the toothless gear 24 faces the gear 38, and the rotation of the toothless gear 25 is transmitted to the gear 38. Will be available. The direction of rotation of the handle 13 is the same, but the direction of rotation of the toothless gear 25 is the direction of the bevel gear 22.
-2 and 23-2, the gears 38 and 35 integrated with the holder are rotated in the opposite direction to the toothless gear 24, and the rotation of the gear 38 is reversed. When the handle 13 is further rotated by 60 degrees, the position becomes as shown in FIG. 9D. This position is different from that in FIG.
The position of the drive pin 29 of No. 6 is further rotated by 180 degrees to reach the position of point B which is the 9 o'clock position of the timepiece.

The above explanation applies to the holders 16-1 and 16-2.
When the screw part of the connector is attached to and the handle 13 is operated as described above, the screw part becomes loose at the first 60-degree rotation, the screw part does not rotate at the next 60-degree rotation, and the last 60
It shows that the screw part can be tightened by rotating once.

In the device 10 of the present invention, as described above, the operation of the handle 13 is carried out through the bevel gears 22-1 and 22-2 fixed to the operating shaft 21 by the first rotation of 60 degrees, and the holder 16 of the detachable portion 16 is moved. When -1, 16-2 are rotated to loosen the screw part of the connector, the drive arm 26 is rotated 180 degrees via the third bevel gear 27 and the bevel gear 28, and the drive pin 29 is provided on the slider 31. When the operations of engaging the bifurcated protrusions of the arm 30 simultaneously proceed and the handle 13 is further rotated by 60 degrees,
The holder of the attachment / detachment portion 16 does not rotate, and the drive pin 29 extends along the outer peripheral surface of the U-shaped guide cam 61 during that time, and the slider 31, the slide shafts 50 and 51, and the slide member 4 are provided.
6 and 47 together move in a U-shaped locus to move the slider 31 to a position close to the sliding member 46, and move the connector holding portion 20 connected to the slider 31 into a U-shape. At this time, the groove 31-1 provided at the upper end of the slider 31 shown in FIGS. 10A to 10C engages with the stopper pin 32 provided on the partition plate 70 and is held so as not to move. When the handle 13 is further rotated by 60 degrees, the drive pin 29 of the drive arm 26 is moved to the slider 3
180 from the forked arm 30 of the arm 30
And the holders 16-1, 16 of the detachable part 16
The operation of rotating -2 is interlocked, the operation of tightening the screw part of the connector is completed, and the handle 13 is rotated by about 180 degrees to complete the attachment / detachment of the connector in one movement.

FIGS. 11A and 11B are explanatory views for explaining a situation in which the device of the present invention is used to attach and detach the connector of the patient 104 side and the dialysate bag 200 in the peritoneal dialysis device.

FIG. 11A shows the readiness for patient 104.
The patient-side tube 101 and the base portion 102 of the patient-side connector, which are connected to each other, are integrally coupled, and the open end of the base portion 102 of the patient-side connector is sealed by a sealing stopper 103. The tube 201 is connected to the tube 201, and the tube 201 is connected to the base portion 202 of the dialysate side connector.
And are integrally connected, and the base portion 2 of the dialysate-side connector is
The open end of 02 is sealed by a sealing plug 203.

The base portion 102 of the patient side connector is attached to the lower groove 20-1 of the connector holding portion 20, the sealing plug 103 is attached to the lower holder 16-1 of the detachable portion 16, and the upper holder of the detachable portion 16 is attached. The base portion 202 of the dialysate side connector is attached to 16-2, and the sealing plug 203 of the dialysate side connector is installed in the upper groove 20-2 of the connector holding portion 20.

In the device 10 of the present invention, FIGS.
When the handle 13 is rotated about 60 degrees from the basic position as shown in D, the holders 16-1 and 16-2 of the attaching / detaching portion 16 are rotated.
Rotates in the direction in which the screw of the connector screw part loosens, and the sealing plugs of both connectors are opened. Further, when the handle 13 is rotated by 60 degrees, the holder of the attaching / detaching portion 16 does not rotate and the connector holding portion 20 moves upward in a U shape and is held in the groove 20-1 of the connector holding portion 20. The base portion 102 of the holder 16-2 of the detachable portion 16
The position is opposite to the dialysate-side connector 202 held by. When the handle 13 is further rotated 60 degrees, the detachable section 1
The base portion 202 of the dialysate side connector held by the holder 16-2 of No. 6 is rotated and fixed to the base portion 102 of the patient side connector. After that, the connector and the tube are removed, and the handle 13 is returned to the original position.

When the handle 13 is returned to the origin position, the operating direction of the handle 13 is reversed.
9D, the position of the drive pin 29 of the drive arm 26 is at the point B at the position of FIG.
The drive arm 26 moves counterclockwise 18
It rotates 0 degrees to the position A of the drive pin 29 of the drive arm 26 shown in FIG. 9C, and when the handle 13 is further rotated 60 degrees, the drive pin 29 becomes 2 of the arm 30 provided on the slider 31.
The slider 31 moves in a U-shape by engaging with the crotch-shaped protrusion, and the position of the drive pin 29 becomes the point B. Then, the drive pin 29 rotates 180 degrees in the next 60 degree rotation 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 separated as shown in FIG. 12A. In a state in which the and are coupled, they are mounted on the lower groove 20-1 of the connector holding portion 20 and the lower holder 16-1 of the detaching portion 16, respectively, and the upper groove 2 of the connector holding portion 20.
0-2 and the upper holder 16-2 of the attachment / detachment unit 16 are fitted with the set of the sealing plug 203 of the dialysate side connector and the sealing plug 103 of the new sterilized patient side connector, and the handle 1
If 3 is rotated about 60 degrees, the base part 10 of the patient side connector
2 and the dial portion of the dialysate side connector 202 are loosely screwed, and a new sterilized patient-side connector sealing plug 103
When the screw connection of the set of the sealing plug 203 of the dialysate side connector is loosened and further rotated by 60 degrees, the base portion 102 of the patient side connector is moved upward as shown in FIG. The position is opposite. When it is further rotated by 60 degrees, the sealing plug 103 is screwed into the base portion 102 of the patient side connector, and the separation of the patient side connector is completed. The base portion 202 and the sealing plug 203 of the dialysate side connector are removed, the handle 13 is returned to the original position, and the operation is completed.

When the apparatus of the present invention is used as described above, the patient side connector and the dialysate side connector can be operated by a simple operation of rotating the handle 13 by 180 degrees without touching the open ends of the patient side connector and the dialysate side connector. The dialysate side connector can be connected and disconnected.

The angle at which the threaded portion of the connector is rotated when connecting and disconnecting the connector of the device 10 of the present invention is determined by the standard of the connector, and the rotation angle of the handle 13 and the holders 16-1 and 16- of the detaching portion. Since the relationship with the rotation angle of 2 is fixed, the gear ratio between the bevel gears 22-1 and 22-2 coupled to the operation shaft 21 and the gears 34 and 35 is the holder when the handle 13 is rotated by 60 degrees. 16-1,
16-2 may be rotated by an angle at which the screw portion is completely tightened (loosened). However, in order to ensure the tightness of the screw portion, it is preferable to determine the gear ratio so that the screw portion rotates by an angle slightly larger than the angle at which the screw portion is completely tightened.

Since the device 10 of the present invention 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 for mounting the above connector and the detaching portion 16 clean at all times, and since the above-mentioned portion is always removed and washed from the main body mechanical portion, the partition plate 70 as described above is used. On the other hand, it is detachably attached with a screw 19. However, when the detachable portion 16 is removed from the main body mechanical portion, the gears 24, 25 and the gear 38 of the detachable portion 16 are disengaged, the gears 34, 35 of the detachable portion move freely, and the detachable portion 16 is assembled to the mechanical portion again. When the gears are attached, the relative positions of the gears 34 and 35 are not fixed, which causes a problem that an accurate attachment cannot be performed.

Therefore, the device of the present invention is provided with a mechanism for locking the gears 34, 35 so that the gears 34, 35 do not move freely when the detachable part 16 is removed from the mechanical part. 13A and 13
B is a figure explaining the principal part of the lock device 17 of the attachment / detachment part 16, and the lock device 17 is a plate-shaped part 17-1 provided slidably in the vertical direction along the side wall 16-4 of the attachment / detachment part 16. , L
Upper end 17-2 bent in a V shape and elongated hole 1 provided in the vertical direction
7-3 and a spring 17-4 inserted into the elongated hole 17-3, and a pin 16-5 provided on the side wall 16-4 of the detachable portion 16 is inserted into the elongated hole 17-3. , Slot 17 above
The upper end of the spring 17-4 in -3 is brought into contact with the pin 16-5, and the L-shaped upper end 17-2 is arranged so as to be seen between the gears 34 and 35.

FIGS. 13A and 13B show the plate-shaped portion 17- of the lock device 17 with the detachable portion 16 attached to the mechanism portion.
1 contacts the projection 17-5 provided on the partition plate 70, moves upward against the spring 17-4, and the L-shaped upper end 17-2 is separated from the gears 34 and 35, and in the unlocked state, The device of the present invention is in a state capable of normal operation.

14A and 14B show the plate-shaped portion 1 of the lock device 17 with the detachable portion 16 removed from the mechanical portion.
7-1 is moved downward by the action of the spring 17-4, and the L-shaped upper end 17-2 is engaged with the gears 34, 35 so that the gears 34, 35
It is in a state in which is locked so that it cannot move freely. When the detachable portion 16 is washed in this state and is reassembled to the mechanical portion, the relative positions of the gears 34 and 35 are the same as when they are removed, and therefore the assembly is completed in a normal state.

[0043]

As described above, according to the manual connector attaching / detaching device of the present invention, the handle 13 is rotated 180 degrees without touching the open ends of the patient side connector and the dialysate side connector. There is a great advantage in connecting and disconnecting the patient-side connector and the dialysate-side connector with a simple operation of simply rotating.

[Brief description of drawings]

FIG. 1 is an external perspective view of a manual detaching device for a medical connector according to the present invention.

FIG. 2 is a plan view of the medical connector according to the present invention with the lid of the manual detaching device open.

FIG. 3A is a plan view of the connector holding portion of the manual detaching device for a medical connector according to the present invention.

FIG. 3B is a right side view of the connector holding portion shown in FIG. 3A.

FIG. 4A is a bottom view of the partition plate in the manual detaching device for a medical connector according to the present invention.

FIG. 4B is a side view of the partition plate of the manual attaching / detaching device of the medical connector of the present invention.

FIG. 5 is a vertical cross-sectional side view of the manual detaching device for a medical connector according to the present invention.

6 is a plan view showing a lower portion of the manual attaching / detaching device shown in FIG.

FIG. 7 is a vertical cross-sectional front view of a manual detaching device for a medical connector according to the present invention.

FIG. 8A is a plan view for explaining an essential part of a detachable portion of a manual detachable device for a medical connector according to the present invention.

FIG. 8B is a side view for explaining a main part of a detachable portion of the manual detachable device for a medical connector according to the present invention.

FIG. 8C is a front view of the main part of the detachable part shown in FIG. 8A.

FIG. 9A is an operation explanatory view of the detachable unit according to the present invention.

FIG. 9B is an operation explanatory view of the detachable unit according to the present invention.

FIG. 9C is an explanatory diagram of the operation of the detachable unit according to the present invention.

FIG. 9D is an explanatory diagram of the operation of the detachable unit according to the present invention.

FIG. 10A is a front view of the slider of the manual detaching device for a medical connector according to the present invention.

FIG. 10B is a plan view of the slider shown in FIG. 10A.

FIG. 10C is a side view of the slider shown in FIG. 10A.

FIG. 11A is a plan view for explaining an operation situation when connecting the patient side and the dialysate side in the manual detaching device for a medical connector according to the present invention.

FIG. 11B is a plan view for explaining an operation situation when the patient side and the dialysate side are connected in the manual detaching device for a medical connector according to the present invention.

FIG. 12A is an explanatory view of an operating condition when the patient side and the dialysate side are separated in the manual detaching device for a medical connector according to the present invention.

FIG. 12B is an explanatory diagram of an operation situation when the patient side and the dialysate side are separated in the manual detaching device for a medical connector according to the present invention.

FIG. 13A is a front view for explaining the holder lock device of the detachable portion in the manual detachment device for a medical connector according to the present invention.

FIG. 13B is a vertical cross-sectional side view of the locking device shown in FIG. 13A.

FIG. 14A is a front view for explaining the holder lock device of the detachable portion in the manual detachment device for a medical connector according to the present invention.

FIG. 14B is a vertical sectional side view of the locking device shown in FIG. 14A.

FIG. 15 is a schematic explanatory view of a first example of a conventional medical connector automatic detaching device.

FIG. 16 is a schematic explanatory view of a second example of a conventional manual connector detaching / attaching device for a medical connector.

[Explanation of symbols]

2 housing 2-1 Substrate 2-2 Bearing plate 10 Manual detaching device for medical connectors 11 rubber feet 12 suckers 13 Operation handle 14 Lid 15 Lid of connector holder 16 Desorption part 16-1 holder 16-2 holder 16-3 groove 16-4 Side wall 16-5 pin 17 Lock device 17-1 Plate-shaped part 17-2 Top 17-3 Slot 17-4 Spring 17-5 Protrusion 19 screws 20 Connector holding part 20-1 groove 20-2 groove 20-3 screw holes 21 Operation axis 22-1 Bevel gear 22-2 Bevel gear 23-1 Bevel gear 23-2 Bevel gear 24 toothless gear 25 toothless gear 26 Drive Arm 27 Third Bevel Gear 28 bevel gears 29 drive pins 30 Arms on the slider 31 slider 31-1 Engagement groove 32 Stopper pin 34 Gears integrated with holder 35 Gears integrated with holder 36 gears 37 gears 38 gears 40 spindles 41 spindle 42 Holding member 43 Holding member 44 Guide shaft 45 guide shaft 46 Sliding member 47 Sliding member 48 coil spring 49 coil spring 50 sliding axis 51 Sliding shaft 60 spindles 61 Guide cam 70 Partition Board 70-1 Square hole 70-2 Square hole 70-3 Screw hole 100 connector removal device 101 Patient side tube 102 Base part of patient side connector 103 Sealing plug for patient side connector 104 patients 200 dialysate bag 201 Dialysis fluid side tube 202 Base of dialysate side connector 203 Sealing plug for dialysate side connector 204 empty bag 300 Connector removal device 380 knob M1 drive motor M2 drive motor M3 drive motor

Front page continuation (72) Inventor Hiroshi Saito 5-8-45 Enami, Yono City, Saitama Prefecture Servo Techno System Co., Ltd. Saitama Factory (72) Inventor Kazuhiro Nimoto 12 Kako-cho, Naka-ku, Hiroshima City, Hiroshima Prefecture No. 17 JMS Co., Ltd. (72) Inventor Seishin Tanaka 12-17 Kakomachi, Naka-ku, Hiroshima City, Hiroshima Prefecture JMS Co., Ltd. (56) Reference JP-A-8-725 (JP, A) JP-A-8-155025 (JP, A) International Publication 99/2205 (WO, A1) (58) Fields investigated (Int.Cl. ⁷ , DB name) A61M 1/00-1/36 A61M 39/00-39/28

Claims (4)

(57) [Claims] 1. A connector holding part (20) for holding a base part (102) of a patient side connector and a sealing plug (203) of a dialysate bag side connector, and a sealing plug of a patient side connector.
(103) and the base part (202) of the dialysate-side connector are held and rotated, the detachable part (16) , the connector holding part (20), and the detachable part (16) are driven in association with each other. The mechanical part for
The operating shaft (21) which is rotated via the
The rotation of the operation shaft (21) causes the gears (22-1, 22-2
Each of which is rotated in the opposite direction via 2)
Two tooth-missing gears (24,25) lacking some teeth, and
Around the guide cam (61) by the operating shaft (21)
It can be moved left and right, front and back via the pin (29) that is moved.
A slider for holding the connector holding portion (20)
(31) and the handle (13) in one direction
Seal the patient-side connector with the first rotation.
Connect the stopper (103) and the base of the dialysate-side connector (202)
Rotate in one direction at the detachable part (16) through the toothless gear.
Tighten the base part (102) of the patient side connector and the dialysate side.
Separate each from the connector sealing plug (203) and
The connector holder (20) is rotated by the second rotation.
The slider (31) relative to the detachable part (16)
And through the patient connector base (102).
Face the base part (202) of the liquid analysis side connector, and
In the third rotation that rotates in one direction,
Kuta (102) and dialysate side connector (20)
2) screwed fastened by rotating in the opposite direction through the toothless gear, the medical connector of the sum of the first to third rotation, characterized in this <br/> and is 180 ° Manual detachable device. 2. A connector holding portion (20) for holding a base portion (102) of a patient side connector and a sealing stopper (203) of a dialysate bag side connector, and a sealing stopper for a patient side connector.
(103) and the base part (202) of the dialysate-side connector are held and rotated, the detachable part (16), the connector holding part (20), and the detachable part (16) are driven in association with each other. The mechanical part for
The operating shaft (21) which is rotated via the
The rotation of the operation shaft (21) causes the gears (22-1, 22-2
Each of which is rotated in the opposite direction via 2)
Two tooth-missing gears (24, 25) lacking part of the teeth, and
Around the guide cam (61) by the operating shaft (21)
It can be moved left and right, front and back via the pin (29) that is moved.
A slider for holding the connector holding portion (20)
(31) and the handle (13) in one direction
Seal the patient-side connector with the first rotation.
Connect the stopper (103) and the base of the dialysate-side connector (202)
Rotate in one direction at the detachable part (16) through the toothless gear.
The sealing plug (203) of the dialysate side connector and the patient
Separated from the base part (102) of the side connector, and unidirectionally
The connector holder (20) is rotated by the second rotation.
The slider (31) relative to the detachable part (16)
And through the patient connector base (102).
Face the sealing plug (103) of the worker side connector and
In the third rotation that rotates in one direction,
The base part (102) of the tractor and the sealing plug (10
3) screwed fastened by rotating in the opposite direction through the toothless gear, the medical connector of the sum of the first to third rotation, characterized in this <br/> and is 180 ° Manual detachable device. 3. The holder for the sealing stopper of the patient side connector and the base of the dialysate side connector provided in the detachable portion is prevented from rotating when the detachable portion is removed from the mechanism portion. The manual detaching device for a medical connector according to claim 1 or 2, further comprising a locking mechanism. 4. A plate-shaped portion in which the lock mechanism is slidably provided along the detachable portion, an elongated hole formed in the plate-shaped portion, a spring inserted in the elongated hole, and the detachable member. A pin to be inserted into the elongated hole provided in the portion, and when the detachable portion is removed, the plate-like portion is pressed by the spring, and the head of the plate-like portion prevents rotation of the holder. The manual attachment / detachment device for a medical connector according to claim 3, wherein the device is in the position.