JP2000005303A - Capd system and its component member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a cost lower, operability better and a patient's burden less with a CAPD(continuous ambulatory peritoneal dialysis) system comprising an exchange set section and a patient side system section by removing a flow passage changeover device and clamp from the exchange set section and disposing their functions to the patient side system section. SOLUTION: The exchange set section of the CAPD comprises a bag 31 filled with a medicinal liquid, a bag 32 for recovering waste fluid, two tubes 33, 34 connected at their respectively one-side ends thereto and a connector 315 for converging respective port parts 311, 312 at their respective other ends. The patient side system section comprises a catheter tube 36 indwelt within the abdominal cavity of the patient 35, a branch tube 37 connected at one end to its extracorporeal end, a roller clamp 316 mounted at the tube and a connector 310 converging the two clamps 38, 39 and the respective port parts 313, 314 at the respective other ends of the branch tube part and connecting these parts to the connector 315 of the exchange set section.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a CAPD system,
And its components.

[0002]

2. Description of the Related Art Conventionally, CAPD (continuous peritoneal dialysis) therapy is known as a therapy that substitutes peritoneal functions for renal function to discharge waste products and to maintain a balance between various body fluid components. Because it is possible and can live the same life as a healthy person at the time of dialysis, it has attracted much attention. The system used for this CAPD therapy includes a catheter tube which is used semipermanently and is placed in the abdominal cavity of a patient, a connection tube which is connected to the outer end of the catheter tube and is replaced after being used for about 6 months, and a drug solution bag. The drainage bag is composed of a replacement set (replacement every time, for example, replacement four times a day) connected in a Y-shaped state via a connector or a tube.

[0003] In the above system, first, an exchange set is connected to a connection tube connected to the outer end of a catheter tube indwelled in a patient's abdominal cavity, and dialysis is performed for a predetermined time. Catheter tube from inside,
The dialysate in the bag is discharged and collected into the drainage bag through the connection tube and the tube connected to the drainage bag, and then connected to the drug solution bag filled with the dialysate, the connection tube and the catheter tube. Inject into the patient's abdominal cavity. After the dialysate is injected, the connection between the exchange set and the connection tube is released, and the exchange set is discarded. By the way, the switching of the flow path of the CAPD system is performed by the three tubes attached to the tubes 13 and 14 connected to the two bags of the exchange set and the connection tubes.
One of the clamps 17, 18 and 19 (see FIG. 1), or a channel switching device 28 having one of the three clamp functions in one device (see Table 2-5)
02882, JP-A-8-224300) or the like (see FIG. 2).

[0004]

However, as shown in FIG. 1 and FIG.
In the APD system, the two clamps 18 and 19 in the former case of FIG. 1 and one flow path switching device 28 in the latter case are mounted on the exchange set side. Is discarded each time the replacement set is replaced. For this reason, there is a disadvantage that the cost of the patient receiving the CAPD therapy is extremely high. Also,
In the latter case of FIG. 2, the operability of the system of FIG. 1 is improved by combining the functions of the clamps 17, 18, and 19 scattered in the system into one device as shown in FIG. Since the flow path switching device 28 is mounted on the exchange set, the connection tube controls the flow of fluid between the patient's body and the exchange set when the exchange set is connected,
At the time of dialysis, a clamp 27 for shutting off the inside of the patient from the outside world is required. Therefore, the patient has to operate the flow path switching at two places, the flow path switching device 28 and the clamp 27, and there is still room for improvement in operability.

[0005] A first object of the present invention is to provide a CAPD system capable of reducing the cost of CAPD therapy and reducing the economic burden on patients. A second aspect of the present invention is a CAP in which operability is improved by providing a channel switching means for the CAPD system closer to the patient.
The purpose is to provide a D system. The third aspect of the present invention relates to CA
It is an object of the present invention to provide a CAPD system in which all the flow path switching means of the PD system are integrated and operability is further improved. The channel switching means in the present invention is meant to include, in addition to the clamp and the channel switching device, other known channel switching devices or instruments.

[0006]

Means for Solving the Problems The present inventors have developed a conventional C
A portion of the APD system that is used every time when the first bag filled with the chemical is replaced, that is, a first bag filled with the chemical, and a second bag having a space for collecting drainage. From the part of the CAPD system that has at least the two bags, the tubes constituting the flow paths connecting these bags and the clamps and / or flow switching devices (this part is referred to as the exchange set part in the present invention), complicated functions are realized. The replacement set member is eliminated by removing at least a part of a relatively expensive component having a flow path switching device and / or a clamp, thereby reducing the number of the replacement set member. Portions of the CAPD system that do not change frequently (this portion is also referred to as the patient side system portion in the present invention), ie, closer to the patient side The provision in the part of the APD system not only allows the cost of the CAPD system for the CAPD therapy to be reduced, but also by arranging the flow path switching means such as the flow path switching device near the patient, The present inventors have found that the operation of the patient's CAPD system has become easier, and that the above-mentioned problem can be solved.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. 1. Embodiment 1 (FIG. 3) The replacement set portion of the CAPD system includes a first bag 31 filled with a chemical solution, a second bag 32 having a space for collecting drainage, and one end of the first bag 31. Port portion 3 connected to the other end 31 and communicating with the opening at the other end.
11 having one end of the second bag 3
2 and a tube 34 having a port 312 at the other end communicating with the opening at the other end, and the port 3
It is composed of a converging member / connector member 315 for converging 11 and 312. In addition, a tubular member or the like having a thin portion formed therein and terminating at a closed end is attached to the lumen of the tube 33, and the thin portion is broken so that a communication member (or a bending member) through which a chemical solution flows is provided. May be. Also,
The tube 33 is provided with the chemical solution bag 3 of the exchange set portion.
The tube 33 may have a joint member capable of connecting and / or disconnecting the chemical solution bag 31 and the tube so that the tube 1 can be managed in a different environment from the other parts of the exchange set portion. In this embodiment, a communication member (or a bending member) 317 and a joint member 318 are provided.

On the other hand, a system part other than the exchange set part of the CAPD system, that is, a patient-side system part, has one end connected to a catheter tube 36 to be indwelled in the abdominal cavity of a patient 35 and an outer end of the catheter tube 36. Port 313 communicating with branch tube opening at the other end
And 314, the roller clamps 316 and the clamps 38 and 39 attached to the respective branch tubes of the three branch tubes 37, the port portions 313 and 314 are converged, and the port portions 313 and 314 are converged. It has a connector 310 connected to a converging member / connector member 315 that converges the port portions 311 and 312 of the exchange set portion. Note that the roller clamp 316 closes the clamp after collecting the drainage and before injecting the drug solution, and
By flowing the drug solution in the bag from the tube 33 to the tube 34, the air present in the tube 33 is collected in the drainage bag 32, and further, the flow path of the drug solution to be injected into the patient (the tube 33 and the tube 37. Used to wash some).

In this embodiment, the connection between the exchange set portion and the patient side system portion is made by connectors 315 and 31 provided on the exchange set portion and the patient side system portion.
0, but the connectors 315, 31
0 preferably has a mechanism for preventing the port from being detached and loosened. Regarding the connector part having the port disengagement prevention mechanism and the loosening prevention mechanism, a relatively expensive part having a more complicated function is added to the connector member of the patient side system part from the viewpoint of reducing the cost of the replacement set part. It is preferred to provide.

Furthermore, if the connector 310 of the patient side system portion and the converging member / connector member 315 of the exchange set portion are not easily detached during use, it is not always necessary to prevent the detachment prevention mechanism and the loosening prevention. There is no need to provide a mechanism. In addition, the converging member and connector member 3
By converging the port portions 311 and 312, the port portions 311 and 312 can be connected to the paired port portions 313 and 314 at the same time, which is preferable. Further, in order to prevent the patient from accidentally connecting to a port other than the corresponding port when connecting the respective port sections, for example, the shape of the pair of port sections to be connected or the shape of the connector is asymmetric or the like. It is preferred that

2. Embodiment (FIG. 4) Hereinafter, Embodiment 2 will be described with reference to FIG. CA
As in the first embodiment, the exchange set portion of the PD system includes a first bag 41 filled with a chemical solution, a second bag 42 having a space for collecting drainage, and one end of the first bag 41. Tube 43 having a port 411 at the other end thereof communicating with the opening of the other end, one end thereof being connected to the second bag 42, and an opening of the other end at the other end. 4 having port portion 412 communicating with
4 and a converging member / connector member 415 for converging the port portions 411 and 412. Also,
The tube 43 may have a communication member (or a bending member) and / or a joint member as in the first embodiment. In the present embodiment, the communication member (or the bending member) 416 and the joint A member 417 is provided.

On the other hand, a system part other than the exchange set part of the CAPD system, that is, a patient-side system part, has one end connected to a catheter tube 46 to be indwelled in the abdominal cavity of a patient 45 and an outer end of the catheter tube 46. The other end has a connector 410, ports 413 and 414 communicating with the opening of the other end, and a tube 47 having a flow path switching device 48 integrated with these ports. In the present embodiment, the channel switching device 48 is integrated with the connector member 410 having the ports 413 and 414,
The flow path switching device 48 does not necessarily need to be integrated with the connector member 410, and may have a separated structure. However, since the operation portion of the patient-side system portion can be made compact, The channel switching device is preferably integrated with the connector member. In the present embodiment, at least the tube 47
And the tube 43, the tube 47 and the tube 44, and the flow path between the tube 43 and the tube 44. If the flow of the fluid between any of the tubes can be blocked, the flow path switching device is used. This is preferable because it is not necessary to provide a separate clamp also for the function of the roller clamp 317 shown in the first embodiment (FIG. 3). In this case, the flow path switching means of all the flow paths are integrated in one place, and the flow path can be switched in one place of the system.

In this embodiment, as in the first embodiment, the connection between the exchange set portion and the patient side system portion is performed by connectors 415 and 410 provided on the exchange set portion and the patient side system portion. Preferably, the connector has a detachment preventing mechanism and a loosening preventing mechanism. Further, a mechanism for preventing disconnection of the connector,
As with the first embodiment, it is preferable to provide relatively expensive components having more complicated functions such as a loosening prevention mechanism in the patient-side system portion from the viewpoint of reducing the cost of the replacement set portion.

Furthermore, if the connector 410 of the patient-side system portion and the converging member / connector member 415 of the exchange set portion are not easily detached during use, the detachment prevention mechanism and the slack prevention device are not necessarily required. There is no need to provide a mechanism. Also, a converging member and connector member 4
By converging the port portions 411 and 412 according to No. 15, the port portions 411 and 412 can be simultaneously connected to the paired port portions 413 and 414, which is preferable. Further, in order to prevent the patient from accidentally connecting to a port other than the corresponding port when connecting the respective port sections, for example, the shape of the pair of port sections to be connected or the shape of the connector is asymmetric or the like. It is preferred that

[0015]

[Effect] 1. A flow switching device and / or a clamp,
The replacement bag portion can be provided at a lower cost by not replacing it frequently or by attaching it to the system portion of the CAPD, that is, the patient side system portion, to make the replacement bag portion simpler. 2. In the invention corresponding to the first and second embodiments,
The flow path switching means such as a clamp is provided closer to the patient side, and operability can be improved. 3. In the invention corresponding to the second embodiment, the flow path switching device is provided closer to the patient side, and the function of the roller clamp 27 in FIG.
Clamping operation is concentrated in one place, and operability is further improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing an example of a conventional CAPD system.

FIG. 2 is a diagram showing another example of a conventional CAPD system.

FIG. 3 is a diagram illustrating an example of a CAPD system corresponding to a first embodiment of the present invention.

FIG. 4 is a diagram illustrating an example of a CAPD system corresponding to a second embodiment of the present invention.

[Explanation of symbols]

Reference Signs List 11 First bag filled with drug solution 12 Second bag having space for collecting drainage 13 Tube 14 Tube 15 Patient 16 Catheter tube 17 Roller clamp 18 Clamp 19 Clamp 21 First filled with drug solution 22 A second bag having a space for collecting drainage 23 Tube 24 Tube 25 Patient 26 Catheter tube 27 Roller clamp 28 Channel switching device 31 First bag filled with chemical liquid 32 Collecting drainage Second bag having a space portion for performing the operation 33 tube 34 tube 35 patient 36 catheter tube 37 3 branch tube 38 clamp 39 clamp 310 connector 311 port portion 312 port portion 313 port portion 314 port portion 315 converging member / connector -Member 316 Roller clamp 317 Communication member (folding member) 318 Joint member 41 First bag filled with chemical solution 42 Second bag having space for collecting drainage 43 Tube 44 Tube 45 Patient 46 Intraperitoneal cavity Catheter tube 47 to be placed in the tube 47 tube 48 flow path switching device 410 connector 411 port portion 412 port portion 413 port portion 414 port portion 415 converging member / connector member 416 communication member (bent member) 417 joint member

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hiroyuki Doi 12-17 Kakocho, Naka-ku, Hiroshima-shi, Hiroshima FMS term in JMS Co., Ltd. 4C077 AA06 BB01 CC02 DD23 EE03 EE04 FF05 KK30 KK30

Claims (6)

[Claims] 1. A CAPD comprising an exchange set part and a patient system part closer to the patient than the exchange set part.
In the system, removing at least a portion of the flow switching device and / or clamp from the exchange set portion,
CA wherein the function of the removed flow path switching device and / or clamp is provided in a patient side system part.
PD system. 2. A first bag filled with a chemical solution.
(2) a second bag having a space for collecting drainage from a patient, (3) one end is connected to the first bag,
A first tube having a port connected to the other end opening at the other end, and (4) a port connected to the second bag at one end and a port connected to the other end opening at the other end. The replacement set part for a CAPD system according to claim 1, comprising at least a second tube mounted. 3. A catheter tube to be indwelled in the abdominal cavity of a patient, and (2) a port connected to one end of the catheter tube at an outer end and communicating with the other end at the other two ends. 2. The C according to claim 1, further comprising at least three branch tubes each having: (3) clamps respectively attached to the branch tubes of the three branch tubes of (2). 3.
Patient side system part for APD system. 4. A tube having (1) a catheter tube to be placed in the abdominal cavity of a patient, and (2) a tube having one end connected to the outside end of the catheter tube and the other end communicating with the opening at the other end. 2. The patient-side system part for a CAPD system according to claim 1, further comprising: (3) a channel switching device mounted on the tube of (2). 5. The apparatus according to claim 4, wherein the flow path switching device and the connector member having a port are integrated.
The patient-side system part for a CAPD system according to claim 1. 6. An exchange set part for a CAPD system according to claim 2, and a CAPD according to any one of claims 3 to 5.
A CAPD system, wherein the CAPD system is connected to a system-side patient system part.