CN110665081A - Sealed peritoneal dialysis device - Google Patents

Abstract

The invention discloses a sealed peritoneal dialysis device, comprising a catheter and a dialysate box. The catheter is communicated with the dialysate box through an introduction pipe and an outlet pipe; the catheter includes a double-channel pipe and a single-channel pipe, and the end of the double-channel pipe is connected to the single-channel pipe. , the U-shaped section at the end of the two-way tube is provided with a plurality of raised holes, the end of the single-way tube is a suction section, and a plurality of through holes are opened on the suction section; the dialysate box includes a first box body and a second box body, The first box body is inserted into the bar-shaped notch of the second box body through the bar-shaped protrusion, and the insertion hole is communicated with the dialysate in the dialysate box. The catheter of the present invention is provided with a raised hole at the upper part for the outflow of the dialysate to increase the exchange area of the dialysate in the abdominal cavity, thereby reducing the time of peritoneal dialysis. The liquid will not come into contact with the patient at all during use, which makes it convenient and quick for the patient to change the liquid, reduces the difficulty and intensity of the patient's operation, and reduces the chance of infection.

Description

A sealed peritoneal dialysis device

technical field

The invention relates to the field of dialysis medical instruments, in particular to a sealed peritoneal dialysis device.

Background technique

Kidney failure and low kidney function are treated with dialysis, which removes waste, toxins, and excess water from the body.

Hemodialysis and peritoneal dialysis are two commonly used methods of dialysis for the treatment of renal insufficiency.

Peritoneal dialysis utilizes dialysate that is infused into the patient's peritoneal cavity. The dialysate contacts the peritoneum in the patient's peritoneal cavity, and waste products, toxins, and excess water enter the dialysate after passing through the peritoneum from the patient's bloodstream. The transport of waste products, toxins and water from the bloodstream into the dialysate occurs due to diffusion and osmosis. The spent dialysate is drained from the patient's peritoneal cavity to remove waste, toxins, and water from the patient, and then replaced.

A peritoneal dialysis catheter is used to introduce fresh dialysate into the peritoneal cavity and drain spent dialysate from the peritoneal cavity. Typically, a peritoneal catheter is implanted into the peritoneal cavity and remains implanted in the body for a period of time.

Peritoneal dialysis currently includes continuous outpatient peritoneal dialysis (CAPD) and automated peritoneal dialysis. CAPD is a manual dialysis treatment. The patient connects an implanted catheter to a drain to allow spent dialysate to drain from the peritoneal cavity. The patient then connects the catheter to a fresh dialysate bag and manually introduces fresh dialysate through the catheter. into the patient's peritoneal cavity. The patient separates the catheter from the fresh dialysate bag, allowing the dialysate to reside in the peritoneal cavity, during which the patient's blood flow transports waste products, toxins, and excess water to the dialysate. After the indwelling period, the patient repeats the described manual dialysis procedure.

In one day, the patient performs several cycles of drainage, filling and retention. The manual peritoneal dialysis performed by the patient requires a considerable amount of time and effort of the patient. Long-term peritoneal dialysis produces peritonitis, and the peritoneum becomes thick and fibrotic, which is not conducive to The osmotic exchange of blood and dialysate, peritoneal dialysis requires high environmental sanitation conditions, the population is aging, the patient's operation is complicated, the dialysis cycle is short and inconvenient, and the replacement of the dialysate bag during the daily peritoneal dialysis process will cause infection in the outlet and tunnel.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a sealed peritoneal dialysis device to solve the problems existing in the prior art, so that the dialysate can be passed in and out of the abdominal cavity through two different nozzles, and the dialysate is sealed and disassembled in a box to avoid The peritoneal dialysis equipment is polluted by frequent man-made operations.

For achieving the above object, the present invention provides the following scheme:

The invention provides a sealed peritoneal dialysis device, comprising a catheter and a dialysate box, and the catheter is communicated with the dialysate box through an introduction pipe and an outlet pipe;

The conduit includes a dual-channel tube and a single-channel tube. The end of the dual-channel tube is connected to the single-channel tube. The U-shaped section at the end of the dual-channel tube is provided with a plurality of raised holes. The end is a suction section, and the suction section is provided with a plurality of through holes;

The dialysate box includes a first box body and a second box body, one side of the first box body is provided with a bar-shaped protrusion, the bar-shaped protrusion is provided with a nozzle, and the second box body is provided. A bar-shaped notch is opened on one side of the box, the bar-shaped notch is provided with a socket, and the first box body is inserted into the bar-shaped notch of the second box body through the bar-shaped protrusion. , when the first box body is inserted into the second box body, the nozzle is passed into the socket and communicated with the socket; the socket is connected to the dialysate box. Dialysate communication.

Preferably, the diameter of the two-way pipe is the same as the diameter of the single-way pipe, and a partition is arranged in the middle of the two-way pipe, and the partition is along the junction of the two-way pipe and the single-way pipe. The outer wall of the two-way pipe is bent and closed, and the protruding hole is arranged on the outer side of the two-way pipe;

Preferably, the suction section of the single-channel pipe is coiled in a spiral shape, and the through holes are distributed and opened along the circumferential direction of the suction section;

Preferably, the outer end of the conduit is connected with a transition joint, the transition joint includes a casing, a conduit interface and an outer pipe interface, a circular hole is formed on one side of the casing, and the conduit is inserted into the circular In the hole, the circular hole is communicated with two outer pipe interfaces, and the other end of the outer pipe interface is used to connect the import plug and the export plug of the dialysate box;

Preferably, the introduction pipe or the discharge pipe is provided in the first box body, and the nozzle at the end of the introduction pipe or the discharge pipe passes through the bar-shaped protrusion of the first box body and protrudes For the strip-shaped protrusion, an elastic tube is sleeved outside the nozzle, and the length of the elastic tube protruding from the strip-shaped protrusion is greater than the length of the nozzle protruding from the strip-shaped protrusion;

Preferably, a container for holding the dialysate is placed in the second box, an insertion hole is opened in the strip-shaped slot, and a rebound plate is arranged in the insertion hole, and the insertion hole is connected with the dialysate for holding the dialysate. of said container is connected;

Preferably, clips are provided on both the introduction pipe and the export pipe, and the clips are used to open and close the introduction pipe and the export pipe;

Preferably, there are two resilient plates, and the two resilient plates are arranged on both sides of the inner wall of the socket, and the resilient plates close the socket in a resilient state;

Preferably, the elastic tube can expand and contract axially along the nozzle;

Preferably, the length of the nozzle protruding from the bar-shaped protrusion is greater than the depth of the resilient plate to the bar-shaped notch.

The present invention has achieved the following technical effects with respect to the prior art:

1. The catheter of the sealed peritoneal dialysis device of the present invention adopts the combination of double-channel and single-channel, so that the dialysate is completely divided into two different pipelines when flowing into the abdominal cavity and flowing out of the abdominal cavity, ensuring that the pipeline will not be affected by the dialysis before and after. Different liquids cause cross-contamination of pipelines.

2. The catheter of the sealed peritoneal dialysis device of the present invention is provided with a raised hole through which the dialysate flows out in the upper part, so that the exchange area of the dialysate in the abdominal cavity becomes larger, thereby reducing the time of peritoneal dialysis, without increasing the number of peritoneal dialysis times. It greatly reduces the time of peritoneal dialysis and brings more free time to the patient.

3. The sealed peritoneal dialysis device of the present invention adopts a dialysate box in an encapsulated form. By setting the dialysate box separately and connecting it in a plug-in form, the interface is hidden inside the box body to ensure that the dialysate will not touch completely during use. To the patient, it is convenient and quick for the patient to change the liquid, and it will not cause any pollution to the equipment, reduce the difficulty and intensity of the patient's operation, reduce the probability of infection, and expand the scope of use, not limited to indoors.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some of the present invention. In the embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative labor.

1 is a schematic diagram of a sealed peritoneal dialysis device;

Fig. 2 is the catheter schematic diagram of sealed peritoneal dialysis device;

Figure 3 is a schematic diagram of the outer catheter port of the sealed peritoneal dialysis device;

4 is a schematic diagram of a transition joint of a sealed peritoneal dialysis device;

5 is a schematic diagram of a dialysate cassette of a sealed peritoneal dialysis device;

Fig. 6 is a partial enlarged view of the dialysate box of the sealed peritoneal dialysis device;

Among them, 1-conduit, 11-dual pipe, 12-protruding hole, 13-single pipe, 14-suction section, 15-through hole, 2-converter, 21-shell, 22-conduit interface, 23 -Outer tube interface, 3-Introduction tube, 31-Introduction plug, 4-Outlet tube, 41-Outlet plug, 5-Dialysate box, 51-First box body, 52-Second box body, 53-Strip convex Start, 54-strip slot, 55-elastic tube, 56-jack, 57-rebound plate, 6-tunnel, 7-clip, 8-, iodine liquid protective cap.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The purpose of the present invention is to provide a sealed peritoneal dialysis device to solve the above-mentioned problems in the prior art, so that the dialysate can enter and exit through two different pipelines in the abdominal cavity, and the dialysate is sealed and disassembled in a box to avoid The peritoneal dialysis equipment is polluted by frequent man-made operations.

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in FIGS. 1-4 , the present embodiment provides a sealed peritoneal dialysis device, which includes a catheter 11 and a dialysate box 5 . The dialysate box 5 is used for placing the dialysate. The dialysate box 5 is connected, the dialysate box 5 connected with the inlet pipe 3 holds the dialysate before dialysis, and the dialysate box 5 connected with the outlet pipe 4 holds the dialysate after dialysis.

As shown in FIG. 2 , the conduit 11 in this embodiment is divided into two parts, which specifically includes a dual conduit 11 and a single conduit 13 . The double conduit 11 is provided with a partition in the middle of the conduit 11 , and the partition divides the conduit 11 into two parts. There are two upper and lower pipelines. The dual-channel tube 11 is arranged in the upper part of the abdominal cavity. After passing through a U-shaped section, the single-channel tube 13 is formed. The upper part of the pipeline 11 is closed, so that there is only a part of the pipeline outside the double-channel pipe 11, and a plurality of raised holes 12 are arranged on the pipeline outside the double-channel pipe 11. The dialysate enters and exits through different pipelines before and after entering and exiting the abdominal cavity, so that the dialysate first enters from the pipeline outside the double pipeline 11. When the dialysate enters the U-shaped section at the upper part of the double pipeline, the dialysate passes through the raised hole 12. Under the guidance of the upper part, the dialysate disperses into the peritoneal cavity, and the dialysate can maximize the material exchange through the peritoneal intima, and the dialysate finally flows into the bottom of the abdominal cavity.

The double-channel tube 11 is followed by a single-channel tube 13. The single-channel tube 13 is spirally coiled at the bottom after the suction section 14 at the rear end of the lower abdominal cavity, and the spiral suction section 14 is opened with a plurality of channels. The hole 15, the through hole 15 is arranged along the circumference of the suction section 14. When the dialysate flows out of the abdominal cavity after the material exchange is completed in the abdominal cavity, it is quickly sucked out through the through hole 15 of the single-channel tube 13 and flows into the inner tube of the double-channel tube 11. and then flow out of the body through the lead-out tube 4 into another dialysate box 5 .

As shown in FIGS. 3-4 , since the catheter 11 of this embodiment is a dual-channel tube 11 outside the body, the catheter 11 is provided with a conversion joint 2 at the outer end of the tunnel 6 , when the conversion joint 2 is not used or replaced The iodine liquid protective cap 8 can be temporarily covered to prevent the external port of the conduit 11 from being polluted; specifically, the adapter 2 includes a housing 21, a conduit interface 22 and an outer tube interface 23, and one side of the casing 21 is provided with a conduit interface 22, The outside of the catheter 11 is plugged into the catheter port 22, and the catheter port 22 is connected with two outer pipe ports 23, so that the two pipelines of the catheter 11 can flow into or out of the outer pipe port 23, and the other end of the outer pipe port 23 uses In order to connect the inlet plug 31 and the outlet plug 41 of the dialysate cartridge 5, the inlet plug 31 and the outlet plug 41 are communicated with the dialysate cartridge 5 through pipelines.

The catheter 11 in this embodiment adopts the combination of the dual-channel tube 11 and the single-channel tube 13, so that the dialysate is completely divided into two different pipelines when the dialysate flows into the abdominal cavity and flows out of the abdominal cavity, so as to ensure that the pipelines will not be the same due to the use of the liquid before and after dialysis. Cross-contamination of pipelines.

The upper part of the catheter 11 of this embodiment is provided with a raised hole 12 through which the dialysate flows out, so that the exchange area of the dialysate in the abdominal cavity becomes larger, thereby reducing the time of peritoneal dialysis, and greatly reducing the number of peritoneal dialysis without increasing the number of peritoneal dialysis. It reduces the time of peritoneal dialysis and brings more free time to the patient.

Embodiment 2

As shown in Figures 1-6, the present embodiment provides a sealed peritoneal dialysis device. On the basis of the first embodiment, the sealed peritoneal dialysis device of this embodiment also has the following characteristics:

As shown in FIGS. 5-6 , the dialysate box 5 of the present embodiment can hold the dialysate and the dialysate after dialysis. Generally, two dialysate boxes 5 need to be set in the dialysis device, but the two dialysate boxes 5 have a complete structure. are the same, but the liquids contained are different; specifically, the dialysate box 5 includes a first box body 51 and a second box body 52, one side of the first box body 51 is provided with a bar-shaped protrusion 53, and the bar-shaped protrusion 53 A nozzle is provided on it, a bar-shaped slot 54 is opened on one side of the second box body 52, a socket 56 is arranged on the bar-shaped slot 54, and the first box body 51 is inserted into the second box body 51 through the bar-shaped protrusion 53. In the bar-shaped slot 54 of the box body 52, the cross-sectional area of the first box body 51 and the second box body 52 is the same. The cross-sectional area is smaller than the cross-sectional area of the first box body 51 , and a complete dialysate box 5 is formed after the first box body 51 and the second box body 52 are inserted.

The first box body 51 of the dialysate cartridge 5 is provided with an introduction tube 3 and an outlet tube 4 , and clips 7 are provided on both the introduction tube 3 and the outlet tube 4 . This embodiment takes the dialysate box 5 connected to the introduction tube 3 as an example. One end of the introduction tube 3 is connected with the introduction plug 31, and the other end is arranged inside the first box body 51 and communicated with the nozzle. The position corresponding to the nozzle is The insertion hole 56 opened from the bar-shaped slot 54 of the second box body 52 is provided with a container for holding the dialysate inside the second box body 52. Before the first box body 51 is plugged in, the insertion hole 56 of the second box body 52 is sealed with tin foil in advance, and a transparent observation port is provided on the outside of the second box body 52 to detect the dialysate condition.

As shown in FIG. 6 , since the nozzle passes through the bar-shaped protrusion 53 of the first box body 51 and protrudes from the bar-shaped protrusion 53 , when the first box body 51 is inserted into the second box body 52 , the nozzle body Pass into the jack 56 and communicate with the jack 56 . In order to ensure that the dialysate cartridge 5 is prevented from being polluted during use, in addition to encapsulating the socket 56 before use, a groove is annularly opened on the outside of the nozzle, and an elastic tube 55 is embedded in the groove. The elastic tube 55 here It can expand and contract axially along the nozzle, and the length of the elastic tube 55 protruding from the strip protrusion 53 is greater than the length of the nozzle protruding from the strip protrusion 53, so that the elastic tube 55 can protect the nozzle before the first box body 51 is used. Prevent the nozzle from being contaminated by other contaminants.

At the same time, a rebound plate 57 is also provided in the insertion hole 56 of the second box body 52 . The rebound plate 57 is a semicircular rebound plate 57 , and the two rebound plates 57 are arranged on both sides of the inner wall of the insertion hole 56 . , the two resilient plates 57 in the insertion hole 56 can ensure that the container is isolated from the external space when the spout is pulled out, and the resilient plate 57 can be opened to communicate with the container when the spout is inserted. Moreover, the length of the protruding strip protrusion 53 of the spout is greater than the depth of the resilient plate 57 to the strip slot 54 , so that the spout can push the resilient plate 57 to communicate with the container after being inserted into the insertion hole 56 .

The sealed peritoneal dialysis device of this embodiment adopts the dialysate box 5 in the form of packaging. By disposing the dialysate boxes 5 separately and connecting them in a plug-in form, the interface is hidden inside the box body, so as to ensure that the dialysate will not be completely removed during use. Contact with the patient makes it convenient and quick for the patient to change the fluid without causing any pollution to the equipment, reducing the difficulty and intensity of the patient's operation, reducing the probability of infection, and expanding the scope of use, not limited to indoors.

In the present invention, specific examples are used to illustrate the principles and implementations of the present invention, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present invention; There will be changes in the specific implementation manner and application scope of the idea of the invention. In conclusion, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. a sealed peritoneal dialysis device is characterized in that: comprise conduit and dialysate case, and described conduit is communicated with described dialysate case by introduction pipe and export pipe; The conduit includes a dual-channel tube and a single-channel tube. The end of the dual-channel tube is connected to the single-channel tube. The U-shaped section at the end of the dual-channel tube is provided with a plurality of raised holes. The end is a suction section, and the suction section is provided with a plurality of through holes; The dialysate box includes a first box body and a second box body, one side of the first box body is provided with a bar-shaped protrusion, the bar-shaped protrusion is provided with a nozzle, and the second box body is provided. A bar-shaped notch is opened on one side of the box, the bar-shaped notch is provided with a socket, and the first box body is inserted into the bar-shaped notch of the second box body through the bar-shaped protrusion. , when the first box body is inserted into the second box body, the nozzle is passed into the socket and communicated with the socket; the socket is connected to the dialysate box. Dialysate communication. 2 . The sealed peritoneal dialysis device according to claim 1 , wherein the diameter of the dual-channel tube is the same as the diameter of the single-channel tube, and a partition is provided in the middle of the dual-channel tube, and the The baffle is bent and closed along the outer wall of the double-path pipe at the intersection of the double-path pipe and the single-path pipe, and the protruding hole is arranged on the outer side of the double-path pipe. 3 . The sealed peritoneal dialysis device according to claim 2 , wherein the suction section of the single-channel tube is clothed along a spiral shape, and the through holes are distributed and opened along the circumferential direction of the suction section. 4 . 4. The sealed peritoneal dialysis device according to claim 3, wherein the outer end of the catheter is connected with a conversion joint, and the conversion joint comprises a casing, a catheter interface and an outer pipe interface, and the casing is a A circular hole is opened on the side, the catheter is inserted into the circular hole, the circular hole is connected with two outer pipe interfaces, and the other end of the outer pipe interface is used to connect the introduction plug of the dialysate box and export plugs. 5. The sealed peritoneal dialysis device according to claim 1 or 4, wherein the first box is provided with the introduction tube or the outlet tube, and the tube at the end of the introduction tube or the outlet tube is provided. The mouth passes through the bar-shaped protrusion of the first box body and protrudes from the bar-shaped protrusion, an elastic tube is sleeved outside the nozzle, and the length of the elastic tube protruding from the bar-shaped protrusion is greater than The spout protrudes by the length of the bar-shaped protrusion. 6 . The sealed peritoneal dialysis device according to claim 5 , wherein a container for holding dialysate is placed in the second box, an insertion hole is opened in the bar-shaped slot, and the insertion hole is opened in the slot. 7 . A resilient plate is arranged inside, and the socket is communicated with the container for holding the dialysate. 7 . The sealed peritoneal dialysis device according to claim 1 , wherein clips are provided on both the introduction tube and the outlet tube, and the clips are used to open and close the introduction tube and the outlet tube. 8 . 8 . The sealed peritoneal dialysis device according to claim 6 , wherein there are two resilient plates, and the two resilient plates are arranged on both sides of the inner wall of the socket, and the resilient plates are located at the inner wall of the socket. 9 . The socket is closed in the rebound state. 9 . The sealed peritoneal dialysis device according to claim 5 , wherein the elastic tube can expand and contract axially along the mouth of the tube. 10 . 10 . The sealed peritoneal dialysis device according to claim 8 or 9 , wherein the length of the nozzle protruding from the bar-shaped protrusion is greater than the depth of the resilient plate to the bar-shaped notch. 11 .

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