CN217793934U

CN217793934U - Improved hemodialysis pipeline

Info

Publication number: CN217793934U
Application number: CN202221462426.5U
Authority: CN
Inventors: 李春花; 杨家慧; 王蓉花; 朱亚梅; 张静; 马逊
Original assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Current assignee: Jiangsu Province Hospital First Affiliated Hospital With Nanjing Medical University
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-11-15
Anticipated expiration: 2032-06-13

Abstract

The utility model relates to the technical field of medical equipment, and an improved hemodialysis pipeline is disclosed, including artery blood drainage pipe and vein blood return pipe, the pipe wall of artery blood drainage pipe and vein blood return pipe is fixed respectively and is equipped with first connecting pipe and second connecting pipe, the end of first connecting pipe rotates and is equipped with the internal thread cover, the inside of internal thread cover is fixed and is equipped with the extension tube with the tip fixed connection of first connecting pipe, the end of second connecting pipe is fixed and is equipped with the external screw thread cover, the external screw thread cover is in thread fit with the internal screw thread cover, the pipe wall of first connecting pipe and second connecting pipe all is provided with the pipe clamp; the internal thread sleeve and the extension tube can be fixedly connected with an external physiological saline tube. The utility model discloses can directly form closed circulation with first connecting pipe and second connecting pipe, can make things convenient for the liquid waste discharge safely, the cross infection risk that blood drippage arouses when reducing the separation can directly be connected first connecting pipe normal saline pipe simultaneously, and the high level fistula of being convenient for returns blood, and the pipeline is cleaner.

Description

Improved hemodialysis pipeline

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to an improvement formula hemodialysis pipeline.

Background

Hemodialysis is a main treatment method for the end-stage kidney patients to live and is particularly important for high-risk special technical safety operation, wherein blood return after treatment is the most important operation link, and the hemodialysis is basically and uniformly connected with a blood pump by using a transfusion tube in China for closed blood return.

Found in clinical operation, to some high-order internal fistulas or internal fistula pressure ratio higher, the artery end utilizes gravity blood return just more difficult, must pressurize in normal saline side, and patient can suspiciously intake water too much sometimes, and the less pipeline of nevertheless intaking is not very clean, and long-term pressurization blood return can cause the damage of internal fistula pipe wall like this, and the healing of internal fistula needle eye is not fully influenced to internal fistula side blood return, leads to internal fistula side thrombus formation even. Patient gets off quick-witted back blood after need carry out the flowing back with the liquid in the hemodialysis pipeline, and at present the flowing back needs to part pjncture needle and pipeline completely, and the arteriovenous end is connected the closure and just can be flowing back, and pjncture needle and pipeline are at the in-process of separation, and the cross infection phenomenon that blood drippage arouses appears easily, has not only increased medical personnel's operating strength, has certain operation risk moreover.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems of the prior art that the puncture needle and the pipeline are required to be separated by the pressure of the lower machine of the hemodialysis high-position internal fistula and the liquid discharge of the hemodialysis pipeline, the operation is relatively complex, and certain infection risk exists, and the improved hemodialysis pipeline is provided.

In order to realize the purpose, the utility model adopts the following technical scheme:

an improved hemodialysis pipeline comprises an arterial blood leading pipe and a venous blood returning pipe, wherein the pipe walls of the arterial blood leading pipe and the venous blood returning pipe are respectively and fixedly provided with a first connecting pipe and a second connecting pipe;

the internal thread sleeve and the extension tube can be fixedly connected with an external physiological saline tube.

Optionally, the extension pipe can be inserted into the inner part of the external thread sleeve and is butted with the end part of the second connecting pipe.

Optionally, the external part of the internal thread sleeve is inserted with a first protective sleeve, and the external part of the external thread sleeve is inserted with a second protective sleeve.

Optionally, the end of the arterial blood-leading vessel is connected with an external blood pump.

Compared with the prior art, the utility model provides an improvement formula hemodialysis pipeline possesses following beneficial effect:

1. this improvement formula hemodialysis pipeline, through first connecting pipe and the second connecting pipe of setting on artery blood drainage pipe and vein return blood vessel, when needs are got off the machine flowing back, can be directly with the end-to-end connection of first connecting pipe and second connecting pipe, make artery blood drainage pipe, vein return blood vessel, first connecting pipe and second connecting pipe form closed circuit, need not to return blood vessel separation with artery blood drainage pipe and vein with internal fistula needle tubing, high durability and convenient operation, the manpower is saved, the cross infection risk that blood drips and arouses when reducing the separation simultaneously.

2. This improvement formula hemodialysis pipeline can be with outside normal saline pipe fixed connection through the internal thread cover with first connecting pipe is terminal with stretch out the pipe, and original normal saline pipe joint pump is preceding, returns the blood and stops pump gravity to return, and arterial end will 80ml salt solution minimum can just be got back to, if the good time that internal fistula pressure is high returns, and this place is direct to be connected first connecting pipe and normal saline pipe, is convenient for return the blood, and returns the blood process and guarantee that the pipeline is clean.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can directly form closed cycle with first connecting pipe and second connecting pipe, the quick-witted flowing back of being convenient for of next flight uses manpower sparingly, and the cross infection risk that blood drippage arouses when reducing the separation.

Drawings

Fig. 1 is a schematic structural view of an improved hemodialysis tube according to the present invention;

fig. 2 is a schematic structural diagram of the first protective sleeve and the second protective sleeve of the present invention.

In the figure: 1. an arterial drainage vessel; 2. the venous return vessel; 3. a first connecting pipe; 4. a second connecting pipe; 5. an internal thread sleeve; 6. an extension tube; 7. an external thread sleeve; 8. a pipe clamp; 9. a first protective cover; 10. a second protective cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate orientations or positional relationships based on the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Referring to fig. 1-2, an improved hemodialysis pipeline includes an arterial blood guiding tube 1 and a venous blood returning tube 2, the end of the arterial blood guiding tube 1 is connected with an external blood pump, the walls of the arterial blood guiding tube 1 and the venous blood returning tube 2 are respectively fixedly provided with a first connecting tube 3 and a second connecting tube 4, the end of the first connecting tube 3 is rotatably provided with an internal thread sleeve 5, the inside of the internal thread sleeve 5 is fixedly provided with an extension tube 6 fixedly connected with the end of the first connecting tube 3, the extension tube 6 can be inserted into the inside of the external thread sleeve 7 and butted with the end of the second connecting tube 4, the end of the second connecting tube 4 is fixedly provided with an external thread sleeve 7, the external thread sleeve 7 is in threaded fit with the internal thread sleeve 5, the extension tube 8 can be inserted into the inside of the external thread sleeve 9 and butted with the end of the second connecting tube 6, so as to ensure the connection sealing performance of the first connecting tube 5 and the second connecting tube 6; pipe clamps 8 are arranged on the pipe walls of the first connecting pipe 3 and the second connecting pipe 4, and when the first connecting pipe 3 and the second connecting pipe 4 do not need to be connected, the pipes of the first connecting pipe 3 and the second connecting pipe 4 can be clamped and closed through the pipe clamps 8; when the first connecting pipe 3 and the second connecting pipe 4 need to be connected, the pipe clamp 8 can be opened to connect the pipelines of the first connecting pipe 3 and the second connecting pipe 4;

the internal thread sleeve 5 and the extension tube 6 can be fixedly connected with an external physiological saline tube, the original physiological saline tube is connected with the front of a pump, blood return is realized by stopping the pump and returning by gravity, the arterial end can be returned by at least 80ml of saline, the arterial end is not clean, and if the internal fistula has high pressure and is not returned well, the design at the position improves the convenience.

The outside of internal thread cover 5 is pegged graft and is had first lag 9, and the outside of external thread cover 7 is pegged graft and is had second lag 10, when first connecting pipe 3 and second connecting pipe 4 need not use, covers internal thread cover 5 and external thread cover 7 through first lag 9 and second lag 10 and protects, avoids appearing polluting the phenomenon.

The utility model discloses in, when the flowing back of machine under needs, can be directly with 3 terminal internal thread cover 5 of first connecting pipe and 4 terminal external screw thread cover 7 threaded connection of second connecting pipe, make simultaneously stretch out pipe 6 insert in the inside of external screw thread pipe 7, make artery blood lead 1, vein blood return 2, first connecting pipe 3 and second connecting pipe 4 form closed cycle, make the return water volume of machine down reduce, high position fistula return blood pressure is big, make things convenient for high position fistula return blood, and vein blood return 2 washes clean the thrombus stenosis that prevents internal fistula, internal fistula oozing blood reduces, need not to return blood vessel 2 separation with internal fistula needle and artery blood lead 1 and vein when pipe adjustment blood flow volume, the cross infection risk that blood drips and arouses when reducing the separation.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. An improved hemodialysis pipeline comprises an artery blood leading pipe (1) and a vein blood returning pipe (2), and is characterized in that the pipe walls of the artery blood leading pipe (1) and the vein blood returning pipe (2) are respectively fixedly provided with a first connecting pipe (3) and a second connecting pipe (4), the tail end of the first connecting pipe (3) is rotatably provided with an internal thread sleeve (5), an extension pipe (6) fixedly connected with the end part of the first connecting pipe (3) is fixedly arranged inside the internal thread sleeve (5), the tail end of the second connecting pipe (4) is fixedly provided with an external thread sleeve (7), the external thread sleeve (7) is in threaded fit with the internal thread sleeve (5), and the pipe walls of the first connecting pipe (3) and the second connecting pipe (4) are both provided with a pipe clamp (8);

the internal thread sleeve (5) and the extension tube (6) can be fixedly connected with an external physiological saline tube.

2. An improved hemodialysis line according to claim 1, wherein the extension tube (6) is inserted inside the external threaded sleeve (7) and is butted against the end of the second connection tube (4).

3. An improved hemodialysis line according to claim 1, wherein a first protection cover (9) is inserted to the outside of the internally threaded sleeve (5), and a second protection cover (10) is inserted to the outside of the externally threaded sleeve (7).

4. An improved hemodialysis line according to claim 1, wherein the end of the arterial drainage tube (1) is connected to an external blood pump.