CN209734631U

CN209734631U - Connecting tube for hemodialysis

Info

Publication number: CN209734631U
Application number: CN201920174762.1U
Authority: CN
Inventors: 胡玲娣
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2019-12-06
Anticipated expiration: 2029-01-31

Abstract

The utility model discloses a connecting pipe for hemodialysis, which comprises a three-way shunt pipe, a main splicing pipe, a groove and a clamping device; the clamping device is arranged on the inner wall of a main pipeline of the three-way flow dividing pipe, a groove is formed in the inserting portion of the main inserting pipe, the shape of the groove is matched with that of the clamping portion of the clamping device, and the three-way flow dividing pipe is connected with the main inserting pipe through the clamping device and the groove. The utility model provides a connecting pipe for hemodialysis utilizes the latch device to realize being connected between tee bend shunt tubes and the main pipe of pegging graft, simple structure, and the leakproofness is good, and difficult weeping is quick detachable simultaneously, washs the convenience.

Description

Connecting tube for hemodialysis

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a connecting pipe for hemodialysis.

Background

Hemodialysis is one of the kidney replacement treatment modes of patients with acute and chronic renal failure. The method comprises the steps of draining blood in vivo to the outside of the body, passing through a dialyzer consisting of a plurality of hollow fibers, enabling the blood and dialysate with similar body concentration to be inside and outside one hollow fiber, and performing substance exchange by dispersion, ultrafiltration, adsorption and convection principles to remove metabolic wastes in the body and maintain the balance of electrolytes and acid and alkali; at the same time, the excess water in the body is removed, and the purified blood is returned. In hemodialysis, a dialysis machine is used, which is connected to a dialysate through a connection tube. The existing connecting pipe is in a structure clamped by a spring, is used for a long time, and is easy to leak due to abrasion and insecure clamping.

SUMMERY OF THE UTILITY MODEL

For solving prior art, the technical problem of weeping that connecting pipe exists for hemodialysis, the technical scheme of the utility model as follows:

The connecting pipe for hemodialysis comprises a three-way shunt pipe, a main inserting pipe, a groove and a clamping device; the clamping device is arranged on the inner wall of a main pipeline of the three-way flow dividing pipe, a groove is formed in the inserting portion of the main inserting pipe, the shape of the groove is matched with that of the clamping portion of the clamping device, and the three-way flow dividing pipe is connected with the main inserting pipe through the clamping device and the groove.

In a preferred embodiment, the clamping device comprises a clamping part, a clamping channel and a spring; the joint passageway sets up in the trunk line, the extending direction perpendicular to trunk line's of joint passageway axis, the spring set up in the joint passageway, the one end and the joint passageway fixed connection of spring, the other end and the joint portion of spring are connected, and joint portion and spring coupling's one end are located the joint passageway, and the other end of joint portion stretches into the trunk line inner chamber.

In a preferred embodiment, the shape of the clamping portion is triangular.

In a preferred embodiment, a pull rod is included; one end of the pull rod is connected with the clamping portion, and the other end of the pull rod extends out of the through hole formed in the outer wall of the main pipeline.

in a preferred embodiment, a gasket is included; the sealing gasket is attached to the groove wall of the groove.

In a preferred embodiment, the device comprises a pipe hoop and an auxiliary insertion pipe; the auxiliary insertion pipe is connected with the branch pipe of the three-way flow dividing pipe through a pipe hoop.

In a preferred embodiment, the main insertion tube and the auxiliary insertion tube each include an insertion tube connection portion, and the outer wall of the insertion tube connection portion is provided with a plurality of truncated cone-shaped protrusions.

In a preferred embodiment, a sealing rubber ring is included; the sealing rubber ring is arranged on the hole wall of the through hole.

In a preferred embodiment, the device comprises a U-shaped limiting device; the two ends of the U-shaped limiting device are fixedly connected with the clamping portion, a limiting opening is formed in the U-shaped limiting device, the pull rod penetrates through the limiting opening, and a blocking piece is arranged at the penetrating end of the pull rod.

The utility model provides a connecting pipe for hemodialysis, compared with the prior art, its beneficial effect is:

The utility model provides a connecting pipe for hemodialysis utilizes the latch device to realize being connected between tee bend shunt tubes and the main pipe of pegging graft, simple structure, and the leakproofness is good, and difficult weeping is quick detachable simultaneously, washs the convenience.

Drawings

FIG. 1 is a schematic structural view of a connecting tube for hemodialysis of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

Fig. 3 is an enlarged view of another structure at a in fig. 1.

Detailed Description

the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 3, the connecting tube for hemodialysis of the present invention comprises a three-way shunt tube 1, a main insertion tube 3, a groove 2 and a latch device 4; the clamping device 4 is arranged on the inner wall of a main pipeline 1-1 of the three-way flow dividing pipe 1, a groove 2 is formed in the inserting portion of the main inserting pipe 3, the shape of the groove 2 is matched with that of a clamping portion 4-3 of the clamping device 4, and the three-way flow dividing pipe 1 is connected with the main inserting pipe 3 through the clamping device 4 and the groove 2. The main insertion pipe 3 is connected with one end of a transmission pipe, and the other end of the transmission pipe is placed in the dialysate containing device. The clamping device 4 comprises a clamping part 4-3, a clamping channel 4-1 and a spring 4-2; the clamping passage 4-1 is arranged in the main pipe 1-1, the extending direction of the clamping passage 4-1 is perpendicular to the axis of the main pipe 1-1, the spring 4-2 is arranged in the clamping passage 4-1, one end of the spring 4-2 is fixedly connected with the clamping passage 4-1, the other end of the spring 4-2 is connected with the clamping part 4-3, one end of the clamping part 4-3, which is connected with the spring 4-2, is positioned in the clamping passage 4-1, and the other end of the clamping part 4-3 extends into the inner cavity of the main pipe 1-1. The outer diameter of the main insertion pipe 3 is equal to the inner diameter of the main pipe 1-1. A dialysate flow channel is arranged in the main insertion tube 3. When the main plugging pipe 3 is used, the main plugging pipe 3 is operated to gradually extend into the main pipe 1-1, in the extending process, the outer wall of the main plugging pipe 3 extrudes the clamping portion 4-3 of the clamping device 4, so that the clamping portion 4-3 retracts into the clamping passage 4-1, when the main plugging pipe 3 extends into the groove 2 and corresponds to the clamping portion 4-3, the clamping portion 4-3 pops out and is clamped into the groove 2, and the main pipe 1-1 is connected with the main plugging pipe 3. The structure is simple, the operation is convenient, and the liquid leakage is not easy to happen.

In order to reduce the resistance of the clamping part 4-3 in the main pipeline 1-1 to the movement of the main insertion pipe 3, the shape of the clamping part 4-3 is designed to be triangular. The main insertion pipe 3 firstly contacts the inclined surface of the clamping part 4-3, and the thrust of the main insertion pipe 3 in the extending process causes the clamping part 4-3 to retract into the clamping channel 4-1.

In order to facilitate the disassembly of the main insertion pipe 3, a drawing rod 5 is arranged; one end of the pull rod 5 is connected with the clamping portion 4-3, the other end of the pull rod 5 extends out of a through hole formed in the outer wall of the main pipeline 1-1, and when the main plugging pipe 3 needs to be separated from the main pipeline 1-1, the pull rod 5 is pulled outwards, so that the clamping portion 4-3 retracts into the clamping passage 4-1, and the main plugging pipe 3 is pulled out. In order to prevent the dialysate in the main pipeline 1-1 from flowing out through the through hole to cause leakage when the main inserting pipe is installed and disassembled, the utility model adopts two technical schemes. One is to arrange a sealing rubber ring on the hole wall of the through hole, so that no gap exists between the drawing rod and the hole wall, and the sealing effect is ensured; another way is to use a threaded connection for sealing, see fig. 3. Specifically, the device comprises a U-shaped limiting device 4-4; the two ends of the U-shaped limiting device 4-4 are fixedly connected with the clamping portion 4-3, a limiting opening is formed in the U-shaped limiting device 4-4, the pull rod 5 penetrates through the limiting opening, a blocking piece 4-5 is arranged at the penetrating end of the pull rod, the pull rod and the blocking piece are not connected, the pull rod 5 can rotate in the limiting opening, and the relative position of the pull rod 5 and the clamping portion 4-3 is fixed. Meanwhile, the drawing rod 5 is provided with external threads, and the hole wall of the through hole is provided with internal threads, so that the drawing rod is in threaded sealing connection with the outer wall of the main pipeline 1-1. At this time, the spring 4-2 is sleeved on the drawing rod. When the device is used, the drawing rod 5 is rotated, the drawing rod 5 gradually drives the clamping part 4-3 to retract into the clamping channel 4-1, the main inserting pipe 3 is convenient to disassemble, and liquid leakage is avoided due to threaded sealing connection.

In order to ensure the sealing performance, a sealing gasket 8 is arranged; the sealing gasket 8 is attached to the groove wall of the groove 2.

In order to facilitate the connection of the two branch pipelines 1-2 of the three-way shunt pipe 1 and the pipeline of the dialysis machine, a pipe hoop 7 and an auxiliary insertion pipe 6 are arranged; the auxiliary insertion pipe 6 is connected with the branch pipes 1-2 of the three-way shunt pipe 1 through pipe hoops 7. The soft pipeline of the dialysis machine is connected with the auxiliary insertion pipe 6. The auxiliary insertion pipe 6, the three-way shunt pipe 1 and the pipe hoop 7 are connected through threads.

in order to facilitate the connection of the soft pipeline used by the dialysis machine, the main insertion pipe 3 and the auxiliary insertion pipe 6 are arranged to respectively comprise an insertion pipe connecting part, and the outer wall of the insertion pipe connecting part is provided with a plurality of truncated cone-shaped bulges. When in use, the soft pipeline is sleeved on the circular truncated cone-shaped bulge 9 to prevent the soft pipeline from falling.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The connecting pipe for hemodialysis is characterized by comprising a three-way shunt pipe, a main insertion pipe, a groove and a clamping device; the clamping device is arranged on the inner wall of a main pipeline of the three-way flow dividing pipe, a groove is formed in the inserting portion of the main inserting pipe, the shape of the groove is matched with that of the clamping portion of the clamping device, and the three-way flow dividing pipe is connected with the main inserting pipe through the clamping device and the groove.

2. The connecting tube for hemodialysis of claim 1, wherein the clamping means comprises a clamping portion, a clamping channel and a spring; the joint passageway sets up in the trunk line, the extending direction perpendicular to trunk line's of joint passageway axis, the spring set up in the joint passageway, the one end and the joint passageway fixed connection of spring, the other end and the joint portion of spring are connected, and joint portion and spring coupling's one end are located the joint passageway, and the other end of joint portion stretches into the trunk line inner chamber.

3. The hemodialysis connection tube according to claim 2, wherein the shape of the catching portion is triangular.

4. The hemodialysis connection tube according to claim 3, comprising a pull rod; one end of the pull rod is connected with the clamping portion, and the other end of the pull rod extends out of the through hole formed in the outer wall of the main pipeline.

5. The connecting tube for hemodialysis of claim 4, comprising a sealing gasket; the sealing gasket is attached to the groove wall of the groove.

6. The hemodialysis connection tube according to claim 5, comprising a ferrule and a sub-connection tube; the auxiliary insertion pipe is connected with the branch pipe of the three-way flow dividing pipe through a pipe hoop.

7. the connecting tube for hemodialysis of claim 6, wherein the main insertion tube and the auxiliary insertion tube each comprise an insertion tube connection portion, and the outer wall of the insertion tube connection portion is provided with a plurality of truncated cone-shaped protrusions.

8. The connecting tube for hemodialysis of claim 7, comprising a sealing rubber ring; the sealing rubber ring is arranged on the hole wall of the through hole.

9. The connecting tube for hemodialysis of claim 8, comprising a U-shaped stopper; the two ends of the U-shaped limiting device are fixedly connected with the clamping portion, a limiting opening is formed in the U-shaped limiting device, the pull rod penetrates through the limiting opening, and a blocking piece is arranged at the penetrating end of the pull rod.