JP5392774B2 - Disposable kit for peritoneal dialysis including the coupling device and the coupling device - Google Patents

Description

  The present invention relates to a coupling device, and more particularly, to a coupling device that couples distal ends of tube members in order to circulate liquid flowing through the tube members.

  In addition, the device according to the present invention particularly couples a catheter inserted into a living body, specifically a human body, and extracts and / or liquid from the human body via a catheter and a tube member coupled to the catheter. Used to perform infusion therapy.

  Specifically, according to the embodiment of the present invention, a catheter that is inserted into the human body is coupled to perform peritoneal dialysis. The catheter has an extension that is adapted to perform the coupling operation.

  An obvious problem with known devices is to prevent liquid flowing through multiple tube members and associated connecting members from contacting a surface once exposed to the external environment, even in a small area and in a short time. Absolute and reliable methods may not be established.

  Of course, contact with such a surface can lead to contamination of the liquid and, in general terms, can impair the purity or sterility of the liquid.

  Specifically, when one of the tube members is a catheter, an exogenous substance that may be pathogenic due to contamination may be injected into the human body. In peritoneal dialysis, infectious substances may be injected to cause serious peritonitis.

  To prevent contamination in medical settings, medical professionals are imposed complex procedures that can be performed. If it is not in such a condition, it is impossible to perform the coupling operation while maintaining clinically necessary safety, and it is difficult to perform a medical practice outside the medical facility.

  The technical problem to be solved by the present invention is to provide a coupling device that solves the problems in the above-mentioned known technology.

  An apparatus that solves the above problem is a coupling device for coupling two tip portions of a tube member, and is a sealed container that accommodates the two tip portions of the tube member and the bending end portion of one tube member. And a movable connecting member having a nozzle inserted into the receiving tip of the other tube member, connected to the tip of the flexure end, and movable from the outside of the sealed container disposed in the sealed container And a cam device that interlocks with the connecting member. The cam device is a coupling device that connects and separates the two tip portions by inserting the nozzle into the receiving tip portion and separating the nozzle from the receiving tip portion.

  The main advantage of the device according to the invention is that the flowing liquid contacts only the elements that are packed and prepared carefully and arranged in a sealed container under special conditions and the inner surface of the receiving tip of the tube member. It is possible to avoid contact with any other surface. Also, the combining operation is simple and can therefore be performed by non-experts.

  In terms of medical practice, the device of the present invention can be used at home, and the patient, the caring family, or a relative can perform the combined operation.

It is a disassembled perspective view of the coupling device by Embodiment 1 of this invention. It is a fragmentary perspective view of the coupling device shown in FIG. It is another partial perspective view of the coupling device shown in FIG. It is an expanded sectional perspective view which shows the detail when the coupling device shown in FIG. 1 exists in a 1st operation | movement aspect. FIG. 5 is a diagram when the apparatus shown in FIG. 4 is in a second operation mode. FIG. 6 is a diagram when the apparatus shown in FIGS. 4 and 5 is in a third operation mode. FIG. 7 is a further enlarged view when the apparatus shown in FIGS. 4 to 6 is in a fourth mode of operation. FIG. 8 is a diagram when the apparatus shown in FIG. 7 is in a fifth operation mode. It is the elements on larger scale which show the detail of the apparatus shown in FIG. FIG. 2 is an enlarged schematic perspective view showing details when the apparatus shown in FIG. 1 is in three different modes of operation not shown in the above figure. FIG. 2 is an enlarged schematic perspective view showing details when the apparatus shown in FIG. 1 is in three different modes of operation not shown in the above figure. FIG. 2 is an enlarged schematic perspective view showing details when the apparatus shown in FIG. 1 is in three different modes of operation not shown in the above figure. It is a fragmentary sectional view which shows the different operation | movement aspect of the apparatus shown in FIG. It is a fragmentary sectional view which shows the different operation | movement aspect of the apparatus shown in FIG. It is a fragmentary sectional view which shows the different operation | movement aspect of the apparatus shown in FIG. It is a disassembled perspective view of the coupling device by Embodiment 2 of this invention. It is a cross-sectional perspective view which shows the detail of the apparatus shown in FIG. It is a figure which shows the use condition in the medical field of the apparatus shown in FIG. 13 regarding a CAPD type peritoneal dialysis.

  Hereinafter, two preferred embodiments of the present invention will be described with reference to the drawings. The disclosed embodiments are merely examples and are not limiting.

  Referring to the drawings, the whole coupling device is indicated by reference numeral 1. The coupling device 1 couples two tube members at each tip.

  Specifically, the first tube member is composed of one catheter 2. The catheter 2 has a first connecting tip 3 having a large diameter and is sealed by a lid member 4. Hereinafter, the first connecting tip is also referred to as a receiving tip.

  The coupling device 1 according to the present embodiment couples the first tube member 2 to a second tube member 5 such as a flexible tube.

  Similarly, the second tube member 5 includes a flexible terminal portion 8 having a second connection tip portion 9. The second connection tip 9 is connected to the first connection tip 3.

  Particularly in the present embodiment, the second tube member 5 is connected to a circulation pump device for APD peritoneal dialysis (automatic peritoneal dialysis). The coupling device 1 is used to connect the pump device (not shown) and the first tube member 2 that is a peritoneal catheter.

  The present invention also includes a hermetically sealed container 10 that houses the connecting tip portions 3 and 9 of the tube members 2 and 5. The first connection tip 3 is disposed in the opening 11 formed in the peripheral wall 12 of the sealed container 10.

  The sealed container 10 has a flat box shape and has a front wall 22 and a rear wall that are parallel to each other. The front wall 22 and the rear wall are connected to the peripheral wall of the sealed container 10.

  The coupling device 1 includes means for driving the connection tip 3 at the opening 11. The connecting tip 3 includes a substantially slid-like slide member 13 outside the sealed container 10.

  The slide member 13 is connected so as to be integrated with the first tube member 2 by accommodating the receiving tip 3, and the tube member 2 passes through the slide member 13 in the longitudinal direction.

  A coupling ring member 14 is provided between the slide member 13 and the receiving tip 3 having a large diameter. The coupling ring member 14 is accommodated in the slide member 13 by a prismatic guide (not shown) extending in the longitudinal direction. Therefore, the coupling ring member arranged in contact with the opening 11 is fixed to the sealed container 10 at the opening 11 by a screw-type fastener.

  The coupling device 1 includes a snap-type fixing mechanism that fixes the slide member 13 to the sealed container. The snap-type fixing mechanism includes a snap-type fixing pin 41 that operates between the slide member 13 and the coupling ring member 14 and is accommodated in the pin receiver 42. The pin receiver 42 is formed outside the sealed container 10 at the opening 11.

  The fixing pin 41 is inserted into the annular edge 43 of the coupling ring member 14 protruding in the radial direction. The annular edge 43 is formed at the tip of the coupling ring member 14 so as to face the sealed container 10. The fixing pin 41 is in contact with the sealed container 10 and constitutes a stopping means in the slide member 13. In this way, the annular edge 43 is disposed between the sealed container 10 and the slide member 13.

  The fixing pin 41 has a button-like other end 44 projecting in the direction of the slide member 13 outside the annular edge 43. Thus, the button-like other end 44 is pushed by the slide member 13 when the movement is completed when the slide member 13 is driven.

  In this way, the fixing pin 41 is pushed and thereby inserted into the pin receiver 42 of the sealed container. As a result, the coupling ring member 14 is prevented from coming off. When the slide member 13 further pushes the button-like other end 44, the fixing pin 41 is retracted from the pin receiver 42 and the coupling ring member 14 is released. This expansion / retraction operation is performed by a snap-type spring mechanism (not shown) incorporated in the annular rim, and is driven when the slide member 13 slides. The slide member 13 including the receiving tip 3 of the catheter 2 fixes the catheter 2 to the sealed container 10 by the structure including the slide member 13, the coupling ring member 14 including the annular rim 43, and the fixing pin 41. A snap-type fixing mechanism for inserting 3 into the sealed container 10 is realized.

  The second connection tip 9 is connected to an elongated movable connection member 15 having a liquid flow path formed in the longitudinal direction. The movable connecting member 15 has a pin-shaped nozzle 16, and the nozzle 16 is inserted into the receiving tip portion 3 of the tube member 2.

  The movable connecting member 15 slides along the stem 17 disposed inside the shaft hole 45 that occupies the movable connecting member 15. The stem 17 has one end close to the base axis connected by a first hinge pin 18 to realize a rotation axis A described in detail below.

  As described above, the movable connecting member 15 generally moves in the circumferential direction around the first hinge pin 18, moves in the radial direction along the stem 17, or moves in both directions.

  That is, the shaft hole 45 extends in the longitudinal direction from the one end including the nozzle 16 to the other end in the movable connecting member 15. The branching portion 46 protrudes to the side of the movable connecting member 15 and forms an extended insertion opening that can be connected to the connecting tip end portion 9 of the second tube member 5 fixed to the outside, for example. The branch portion 46 has a branch hole formed so as to be connected to the shaft hole along the branch portion 46. By this branch hole, the liquid flows between the second tube member 2 and the shaft hole 45, that is, between the nozzles 16 inserted into the receiving tip portion 3 of the first tube member 2.

  The stem 17 includes a sealing ring 47 provided at a distance. The movable connecting member 15 is configured such that the stem 17 including the sealing ring 47 blocks the branch hole of the branching portion 46 from a position close to the base axis where the movable connecting member 15 is located on the hinge pin 18 and the liquid flow path in the movable connecting member 15. It moves along the stem 17 to a position where it is cut off.

  Specifically, the stem 17 is provided with at least two spaced sealing rings 47, and when the movable connecting member is located near the stem 17 where the hinge pin 18 is located, The opening is located between the two sealing rings 47.

  When located far from the hinge pin 18 and at the other end, the nozzle 16 of the movable connecting member 15 is inserted into the receiving tip 3. In this aspect, the stem 17 is retracted to the inside of the shaft hole 45 with respect to the opening of the branch hole, and the liquid flow path from the second tube member 5 to the first tube member 2 is opened.

  The nozzle 16 has an accommodation tip 48 that is accommodated by a corresponding stop edge 72 at the receiving tip 3, and has a side hole 49 at the accommodation tip 48. The accommodating tip 48 is provided with a deformable bushing 50. When the nozzle 16 is not inserted into the receiving tip 3, the side hole 49 is sealed as a sealing member. When the nozzle 16 is inserted, the bushing 50 is compressed and the side hole 49 is opened. In general, the bushing 50 and other sealing members perform sealing in cooperation with the stop edge 72.

  The coupling device 1 includes a cam device that drives the movable connecting member 15. For the purpose of driving, the movable connecting member 15 has a driving pin 20 protruding between the movable connecting member 15 and the rear wall of the sealed container 10, and the driving pin 20 operates as a cam follower.

  The cam device is configured such that the movable connecting member 15 and the nozzle 16 are inserted into the receiving tip 3 from the initial state where the nozzle 16 is coaxial with the receiving tip 3, and further, the nozzle 16 The movable connecting member 15 is driven so as to be separated.

  The cam device includes a first cam profile member 19 disposed inside the sealed container 10. The first cam profile member 19 is driven from the outside of the sealed container 10, and specifically, interlocks with the movable connecting member 15 by a drive pin 20 protruding from the movable connecting member 15.

  The first cam profile member 19 includes a flat plate on which a curved first cam guide is formed, and interlocks with the drive pin 20. The flat plate is rotated along the rotation axis A by a knob 21 arranged outside the front wall 22 of the sealed container 10. The drive stem 30 of the knob 21 is inserted into a drive base 31 formed in the axial direction at the hinge pin 18.

  In the present embodiment, the first cam guide is a groove 23 that receives the drive pin 20, and the groove 23 is formed by a notch penetrating the flat plate. In addition, the said notch is extended in the shape of a U-shape, and the front-end | tip opposes the part in which the opening part 11 in the surrounding wall of the airtight container 10 is formed.

  The present embodiment is intended for medical use, and the first cam profile member 19 rotated by the flat plate, that is, the knob 21, prevents reverse rotation of the first cam profile member 19, for example, reverse rotation such as a plurality of teeth. It rotates only in one direction (counterclockwise) by a prevention mechanism (not shown). Therefore, once used, the present invention cannot be used again. Thus, the present invention is considered disposable.

  The cam device further includes a second cam profile member that interlocks with the first cam profile member described above. In the present embodiment, the second cam profile member includes a second cam guide 60 formed on the rear wall surface of the sealed container in which the first cam profile member 19 is disposed. Since the second cam guide 60 is formed on the wall surface of the container, it is considered to be a fixed cam guide as opposed to the groove 23 which is a movable cam guide.

  The projecting pin 61 of the drive pin 20 is inserted into the second cam guide 60 to perform further guiding operation.

  The second cam guide 60 has a first portion 62 extending in the circumferential direction, a second portion 63 extending in the radial direction, and a third portion 64 extending in the circumferential direction. The first portion 62 extending in the circumferential direction corresponds to the movement path from the initial state of the movable connecting member 15 to the inserted state. The second portion 63 extending in the radial direction corresponds to the movement path from the inserted state to the state where the nozzle 16 is separated from the receiving tip 3. The third portion 64 extending in the circumferential direction corresponds to the movement path from the separated state to the final state.

  The first portion 62 extending in the circumferential direction, the second portion 63 extending in the radial direction, and the third portion 64 extending in the circumferential direction form a substantially Y-shaped guide, and two distorted arm portions are formed. Have. The first portion 62 extending in the circumferential direction and the third portion 64 extending in the circumferential direction are alternately arranged, thereby forming a step 65 corresponding to the initial state.

  As will be apparent from the following description of the present embodiment, the first cam profile member 19 rotates in response to the second cam guide 60, whereby the nozzle 16 is inserted into the receiving tip 3 and the receiving tip. 3, the connection tip portions 3 and 9 of the tube members 2 and 5 are connected.

  The first and second cam profile members operate in conjunction with each other as a gear that operates actively, that is, as a desmodromic mechanism that adjusts the operation predominantly.

  The coupling device 1 includes accommodation means for the lid member 4 to seal the receiving tip 3. The accommodating means includes a first cam profile member 19, and the first cam profile member 19 is formed with two lid receivers.

  The flat plate has a substantially circular shape, and when the flat plate rotates, the end of the flat plate maintains a state adjacent to the peripheral wall of the sealed container 10.

  Specifically, the flat plate realizes a first cam profile member 19 including a first lid receiver 24. The first lid receiver 24 receives the lid member 4 of the receiving tip 3 when the first cam profile member performs the operation of inserting the nozzle 16 into the receiving tip 3. The lid receiver 24 is a substantially cup-shaped receiving recess, and is formed at the end of the flat plate so as to be integrated with the flat plate realizing the cam profile.

  The first cam profile member 19 also includes a second lid receiver 25 that receives another lid member 26, and the second lid receiver 25 is protected by the sealed container 10. The second lid receiver 25 is disposed at the receiving tip 3 when the nozzle 16 is completely separated from the receiving tip 3.

  Actually, the first cam profile member 19 has the nozzle 16 formed on the receiving tip 3 by two cam profiles from the initial state in which the first lid receiver 24 is disposed on the receiving tip 3 (FIG. 11A). Through the inserted intermediate mode (FIG. 11B), the second lid receiver 25 rotates to the final mode (FIG. 11C) arranged at the receiving tip 3.

  The first lid receiver 24 in the housing means includes a fin-like circumferential protrusion 27, and the fin-like circumferential protrusion 27 is accommodated in a corresponding peripheral groove 28 formed in each lid member. As described above, the first lid member 4 is accommodated by clicking the first lid member 4 and the fin-shaped circumferential protrusion 27 by using the elasticity of the fin-shaped circumferential protrusion 27 to interfere with each other. Done in motion.

  The second lid receiver 25 does not have a fin-like circumferential protrusion, and the other lid member 3 realizes a separating means for sealing the receiving tip portion 26.

  The blocking device 70 is provided at the receiving tip 3 and includes a blocking member 71 that operates in contact with the stop edge 72 that also accommodates the lid member 4 inside the connecting tip 3 (FIG. 5). The blocking member 71 is mounted on the blocking stem 73 and slides in a ring 74 fixed to the tube member 2.

  In the present embodiment, a helical spring 75 wound around the blocking stem 73 is provided between the blocking member 71 and the ring 74, thereby improving the adhesion between the blocking member 71 and the stop edge 72. Secured.

  In a normal state, the shut-off device operates as a check valve and prevents liquid leakage in the tube member 2 regardless of the presence or absence of the lid member 4. Thereby, even if the lid member is lost by mistake, there is no emergency problem.

  When the nozzle 16 is inserted into the receiving tip 3, the receiving tip 48 pushes the blocking member 71 into the interior against the force of the spring. Then, the sealing bushing 50 is compressed by the stop edge 72 and the corresponding side hole 49 is opened. Thereby, the liquid flows in both directions through the receiving tip 3 (FIG. 7).

  In connection with the operation of the coupling device 1, the coupling device 1 places the bending end portion 8 of the second tube member 5 in the sealed container 10 together with the connection tip portion 9 fixed to the movable connection member 15 at the branch portion 46. Prepare. In the present embodiment, the coupling device 1 connects the APD dialysis set to the peritoneal catheter, that is, the first tube member 2.

  The first tube member 2 includes a connection tip 3 having a large diameter, a slide member 13 and a coupling ring member 14. As the slide member 13 is rotated, the coupling ring member is clamped in the opening 11 and the receiving tip 3 is placed in the correct position for inserting the nozzle 16.

  Then, the slide member 13 moves toward the apparatus, and the receiving tip moves to place the lid member 4 in the first lid receiver 24, whereby the lid member 4 is moved by the fin-shaped circumferential protrusion 27. Be contained.

  Further, by this operation, the fixing pin 41 is inserted into the pin receiver 42 (FIG. 6).

  The slide member 13 and the connecting tip 3 of the catheter 2 are restored to the initial state. This restoring operation may be assisted by an elastic member such as a helical spring (not shown) disposed between the slide member 13 and the coupling ring member 14.

  Next, the knob 21 is rotated. The cam profile of the first cam profile member 19 operates in contact with the drive pin 20 of the movable connecting member 15, so that the protruding pin 61 extends along the first portion 62 of the groove in the second cam profile member 60. Moving. Then, the nozzle 16 and the receiving front-end | tip part 3 will be in a coaxial state.

  When the knob 21 is further rotated, the movable connecting member 15 is pushed out by the curved profile of the groove 23 and slides along the second portion 63 extending in the radial direction of the second cam profile member 60. In this way, the nozzle 16 is inserted into the receiving tip 3.

  In the device of the present invention, the position of the first cam profile member 19 and the interlocking knob is preferably sealed by the indication of I-II-III on a graduated scale, with the indication embossed for tactile recognition. 10 is detectable from the outside.

  The middle display II shows the inserted state (FIG. 11B).

  When it is desired to terminate the connection, the knob 21 is further rotated counterclockwise until the final state (FIG. 11C, display III). The movable connecting member 15 retreats along the third portion extending in the radial direction in the second cam profile member 60 and then translates along the third portion 64 extending in the circumferential direction. Thereby, the second lid member 26 is finally disposed in front of the receiving tip 3.

  When the slide member 13 is moved downward, the receiving tip 3 moves forward and accommodates the lid member 26. Thereby, the catheter 2 is sealed until the next use.

  By moving the slide member 13 downward, a snapping operation is executed, and as a result, the fixing pin 41 moves backward. Then, the coupling ring member 14 is loosened and separated.

  Therefore, in the clinical environment, specifically in the peritoneal dialysis treatment, the coupling device 1 is of a disposable type, and is connected to the coupling device, the transfer type (volumetric) diaphragm pump, the solution bag and the drainage bag (not shown). It is sold as a kit including a connecting line.

  13 to 15, the coupling device according to the second embodiment of the present invention is substantially similar to the coupling device according to the first embodiment of the present invention. In the drawings, the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals.

  The coupling device 1 according to the second embodiment includes a container 10 that is sealed by a front wall 22 that includes a knob 21. The knob 21 rotates the first cam profile member 19. The first cam profile member 19 is interlocked with a second cam profile member 60 formed on the inner surface of the rear wall of the sealed container 10.

  The stem 17 is rotatably attached around the hinge pin 18 and is inserted into the shaft hole 45 of the movable connecting member 15. The stem 17 also includes a pin-shaped nozzle 16 that is inserted into the receiving tip 3.

  In the present embodiment, the coupling device 1 alternately connects the receiving tip 3 of the peritoneal catheter 2 and two different flexible tubes 5a and 5b having flexible terminal portions 8a and 8b at the respective connecting tips 9a and 9b. Suitable for doing.

  Each of the two flexible tubes is a dialysate bag 6 disposed at a high position containing dialysate to be injected into the peritoneum of a human body, and a drainage solution bag 7 disposed at a low position for receiving the drained fluid. Connected to.

  This structure realizes so-called CAPD type peritoneal dialysis (continuous portable peritoneal dialysis).

  Thus, the coupling device 1 connected to the peritoneal catheter via a suitable connection device (not shown) first connects the catheter 2 to the dialysate bag 6. Then, the dialysate in the dialysate bag 6 is fed into the human body by gravity. Next, the coupling device 1 connects the catheter 2 to the drainage bag 7. Then, the discharged solution is fed into the discharged solution bag 7 by gravity. Therefore, the coupling device 1 selectively allows the liquid to flow in two opposite directions.

  The cam guide 23 of the first cam profile member 19 is similarly U-shaped but further includes a central portion extending in the circumferential direction.

  When the first cam profile member 19 is rotated from the first inserted state, the nozzle 16 of the movable connecting member 15 moves to the receiving tip 3 until the movable connecting member 15 moves to the end of the central portion extending in the circumferential direction. If the first cam profile member 19 is further rotated, it is separated from the receiving tip 3. Accordingly, four modes indicated by the appropriate display I-II-III-IV on the front wall 22 and the knob 21 will be provided.

  The movable connection member 15 includes two branch portions 46a and 46b connected to the second connection tip portions 9a and 9b, respectively. The branch portions 46a and 46b are closed and released by the relative movement of the stem 17 (FIG. 13). Specifically, when the nozzle 16 is inserted into the receiving tip 3, it is released (modes II and III).

  On the first cam profile member 19 and on the back surface (not shown) of the front wall 22, blocking means for selectively blocking the flexible terminal portions 8 a and 8 b is provided. The blocking means comprises an embossed profile 80 that squeezes the deflection end portions 8a, 8b corresponding to the position of the first cam profile member 19.

  The operation of this apparatus is similar to the operation described in the first embodiment. However, in the mode II, the second deflection end portion 8b is narrowed, and only the solution from the dialysate bag 6 can flow through the catheter.

  When the dialysate bag 6 is emptied or when a predetermined time has elapsed, the knob is rotated to the state III to release the second flexible terminal portion 8b that has been throttled until then, and the second The deflection end portion 8a is squeezed. With this structure, the discharged solution flows into the discharged liquid bag 7. At the end of the stroke, the knob 21 is rotated to state IV, thereby sealing the catheter with the second lid member 26. Thereafter, the coupling device 1 may be discarded together with the kit including the flexible tubes 5 a and 5 b and the bags 6 and 7.

  In a possible improvement, it is also intended to selectively open and close the two branches.

  Any modifications by the person skilled in the art to meet further specific needs shall be included in the scope of protection defined by the claims for the coupling device.

Claims (33)

A coupling device (1) for connecting two types of tip portions (3, 9; 3, 9a, 9b) of each tube member (2, 5; 2, 5a, 5b), the coupling device (1 )
The two types of tips (2; 5; 2, 5a, 5b) of the two types of tips (1; 3, 9; 3, 9a, 9b) and a sealed container (10),
It has a nozzle (16) to be inserted into the receiving tip (3) of the second tube member (2), and the second tip (9; 9a, 9b) of the bending end (8; 8a, 8b). A movable connecting member (15) coupled to
A cam device interlocked with the movable connecting member (15), which is disposed in the sealed container (10) and driven from the outside of the sealed container (10),
Furthermore, the cam device is a cam that rotates around an axis (A) by rotation of a fixed cam guide (60) and a knob (21) arranged outside the wall (22) of the hermetic container (10). A profile member (19),
The cam profile member (19) includes a flat plate on which a curved movable cam guide (23) including a groove for receiving the pin (20) of the movable connection member (15) is formed, and the movable connection member (15) In conjunction with the pin (20)
The groove of the movable cam guide (23) consists of a cut through the flat plate,
The protrusion (61) of the pin (20), which operates as a cam follower, is inserted into the fixed cam guide (60),
The cam device is configured to insert the nozzle (16) into the receiving tip (3) and separate it from the receiving tip (3), and the two types of tip (3, 9; 3, 9a, 9b) for connecting / disconnecting the coupling device (1)   The coupling device (1) according to claim 1, wherein the fixed cam guide (60) is formed on a wall surface of the sealed container (10). The fixed cam guide (60)
A first portion (62) extending in a circumferential direction corresponding to a movement path of the movable connecting member (15) from an initial state to an insertion state;
A second portion (63) extending in the radial direction corresponding to the movement path from the state in which the nozzle (16) is inserted to the state in which it is separated;
A third portion (64) extending in a circumferential direction corresponding to the movement path from the separated mode to the final mode,
The coupling device (1) according to claim 1, wherein the first, second and third portions (62, 63, 64) form a substantially Y-shaped guide in which two Y-shaped arm portions are distorted. ).   The coupling device (1) according to claim 3, wherein the circumferentially extending first and third portions (62, 64) are staggered, thereby forming a step (65) corresponding to the initial state. ). The movable connecting member (15) slides along a stem (17) whose one end is attached to the rotating shaft (A) of the cam profile member (19) by a hinge pin, and the stem (17) The coupling device (1) according to claim 1, wherein the coupling device (1) passes through a matching shaft hole (45) of the movable connecting member (15).   The shaft hole (45) extends in the longitudinal direction between the tip of the movable connecting member (15) and the nozzle (16), and at least one branch portion (46; 46a, 46b) is formed in the first tube. Coupling device (1) according to claim 5, wherein said coupling device (1) projects from said movable connecting member (15) so as to be fixed to said second tip (9; 9a, 9b) of member (5; 5a, 5b). . The stem (17) includes a sealing ring (47), blocks a liquid flow path in the movable connecting member (15), and blocks a branch hole in the branch portion (46; 46a, 46b). The coupling device (1) according to claim 6.   The coupling device according to claim 1, wherein the nozzle (16) has a side hole (49) in a receiving tip (48) received in a corresponding stop edge (72) of the receiving tip (3). (1).   The coupling device (1) according to claim 8, wherein the receiving tip (48) has a sealing member (50) that performs a sealing operation in conjunction with the stop edge (72).   Drive means for driving the receiving tip (3), and a lid member (4, 26) for sealing the receiving tip (3), which are linked to open and seal the receiving tip (3). 2. Coupling device (1) according to claim 1, comprising accommodation release means (19, 24, 25, 27) for receiving and releasing the container.   The said drive means is arrange | positioned on the outer side of the said airtight container (10), and is provided with the slide member (13) connected to the said 2nd tube member (2) by the said receiving front-end | tip part (3). A coupling device (1).   12. The coupling device (1) according to claim 11, wherein the slide member (13) has a generally scabbard shape, through which the second tube member (2) passes.   The coupling device (1) according to claim 12, wherein the slide member (13) receives a coupling ring member (14), which is fixed to the sealed container (10), specifically by means of a screw-type fastener member.   The coupling device (1) according to claim 13, comprising at least one elastic member between the slide member (13) and the coupling ring member (14).   15. The coupling device (1) according to claim 14, comprising a snap-type securing mechanism that operates between the slide member (13) and the coupling ring member (14) to secure the slide member (13).   16. The snap-type fixing mechanism comprises a snap-type fixing pin (41) received by a pin receiver (42) formed outside the opening (11) in the sealed container (10). Coupling device (1).   The snap-type fixing pin (41) includes a button-like other end (44) projecting outwardly from the annular edge (43) of the coupling ring member (14) toward the slide member 13, and the button-like other The coupling device (1) according to claim 16, wherein the end (44) is pushed by the slide member (13) upon completion of movement of the slide member (13).   11. The coupling device (1) according to claim 10, wherein the accommodation release means (19, 24, 25, 27) comprises one or more lid receivers (24, 25) formed on the flat plate. The flat plate
A first lid receiver (24) for receiving the lid member (4) of the receiving tip (3) at the position of the flat plate where the nozzle (16) is inserted;
Another lid member (26) which is protected in the sealed container (10) and which is disposed on the receiving tip (3) when the nozzle (16) is completely separated from the receiving tip (3) 19. The coupling device (1) according to claim 18, comprising a second lid receiver (25) for receiving.   In the flat plate, from the initial state (FIG. 11A) in which the first lid receiver (24) is arranged at the receiving tip (3), the nozzle (16) is moved to the receiving tip (3) by a cam device. 20. Passing through the inserted intermediate mode (Fig. 11B), the second lid receiver (25) rotates to the final mode (Fig. 11C) arranged at the receiving tip (3). Coupling device (1).   21. A coupling device (20) according to claim 20, wherein said containment release means (19, 24, 25, 27) comprise fin-like circumferential projections (27) inserted into corresponding peripheral grooves (28) of each lid member. 1).   The coupling device (1) according to claim 1, wherein the position of the cam device and the interlocking drive knob (21) can be detected from the outside of the sealed container (10) by a scale with a scale.   The receiving tip (3) includes a blocking device (70), and the blocking device (70) includes a stop edge (72) of the second tube member (2) in the receiving tip (3). A closing blocking member (71) is provided, and the blocking member (71) is mounted on a blocking stem (73) that slides in a ring (74) fixed in the second tube member (2). The coupling device (1) according to claim 1, wherein the coupling device (1) operates as a check valve for preventing leakage of liquid in the tube member (2).   A helical spring (75) wound around the blocking stem (73) is provided between the blocking member (71) and the ring (74), and between the blocking member (71) and the stop edge (72). 24. The coupling device (1) according to claim 23, which ensures adhesion.   The coupling device (1) according to claim 1, wherein the receiving tip (3) is part of a catheter.   26. The coupling device (1) according to claim 25, which is of a disposable type.   The receiving tip (3) of the second tube member (2) is selectively connected to the first tube member (5a, 5b) comprising two tube members, and the first tube member The coupling device according to claim 1, wherein each of (5a, 5b) comprises a flexure end (8a, 8b) and a second tip (9a, 9b) arranged in said sealed container (10). (1).   28. The coupling device (1) according to claim 1 or 27, wherein the groove of the movable cam guide (23) has a U-shape and has a central portion extending in the circumferential direction. It said movable connecting member (15) includes a respective second tip two bifurcation (9a, 9b) is connected to the (46a, 46b), coupling device according to claim 27 (1).   28. Coupling device (1) according to claim 27, comprising blocking means for selectively blocking the flexure terminations (8a, 8b).   31. The blocking means for selectively blocking the deflection end portions (8a, 8b) comprises a relief profile (80) for constricting the deflection end portions (8a, 8b) according to the position of the cam device. A coupling device (1).   32. A disposable kit for peritoneal dialysis comprising the coupling device according to any one of claims 1 to 31, a connecting tube, and at least one APD peritoneal dialysis pump device.   32. The coupling device according to any one of claims 1 to 31, a dialysate bag (6) containing a suitable dialysate, a drain bag (7) for the solution to be drained, and coupled thereto. A disposable kit for peritoneal dialysis, including a CAPD type peritoneal dialysis connecting tube.

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