CN211157665U

CN211157665U - Hemodialysis catheter

Info

Publication number: CN211157665U
Application number: CN201921787532.9U
Authority: CN
Inventors: 周雨婷; 蔡小霞; 林亚妹; 王娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-08-04
Anticipated expiration: 2029-10-23

Abstract

The utility model discloses a hemodialysis catheter, which comprises an auxiliary catheter, an inflator pump and a main catheter, wherein one end of the main catheter is provided with a three-way connecting seat, one end of the main catheter, which is cut on the three-way connecting seat, is fixedly provided with a sleeve shaft, one end of the three-way connecting seat is fixedly provided with a threaded end, through an anti-blocking film arranged in the main catheter, when the main catheter is left in the body of a patient for a long time, an inflation cavity in the main catheter is inflated through the inflator pump, after inflation, a valve is closed, the anti-blocking film is inflated and then expands, so that the inner tube wall at one end of the main catheter is filled, the inner tube wall at one end of the main catheter is prevented from flowing into a tube to form thrombus, meanwhile, a filling soft sheet arranged at the same time is arranged in an inclined shape, the inside of the auxiliary catheter can play a good sealing effect in the inserting part, and simultaneously, because the filling soft sheet, the situation that liquid leakage and disconnection easily occur in the traditional connection and placement is avoided.

Description

Hemodialysis catheter

Technical Field

The utility model belongs to the technical field of medical appliances, concretely relates to hemodialysis pipe.

Background

In the clinic, hemodialysis catheters are used primarily to create short-term venous access for hemodialysis, blood collection, manometry, and fluid infusion. The hemodialysis catheter has the working principle that after the hemodialysis catheter is inserted into a central venous system, the hemodialysis catheter is connected with a dialysis machine, blood containing metabolic wastes of a dialysis patient is sucked from the arterial end of the catheter, and passes through a circulation pipeline and the dialysis machine, physical mechanisms such as dialysis dispersion, convection and adsorption are adopted to remove excessive water and toxins in the body, the electrolyte and acid-base balance of the patient is adjusted, the purified blood is pumped back to the central vein of the human body at the venous end of the catheter, when the existing hemodialysis catheter is clinically used, a certain pressure is given to the catheter by the dialysis machine, so that the leakage or disconnection of the catheter at the connection part is easily caused, meanwhile, one end of the catheter needs to be placed on the body of the patient due to the fact that periodic dialysis is needed by the existing part of patients, but the human body has the characteristics of active foreign matter discharge and sediment formation on the surface of the foreign matter, and sediment can be rapidly generated on the surface of the, leading to the formation of an embolism inside the hemodialysis catheter during the catheterization after the dialysis treatment, and it is necessary to improve the prior art to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hemodialysis pipe to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a hemodialysis catheter comprises an auxiliary catheter, an inflator and a main catheter, wherein one end of the main catheter is provided with a three-way connecting seat, one end of the main catheter, which is cut on the three-way connecting seat, is fixedly provided with a sleeve shaft, one end of the three-way connecting seat is fixedly provided with a threaded end, the main catheter is fixedly connected with the three-way connecting seat through the sleeve shaft, the three-way connecting seat is fixedly provided with a fixed buckle, one end of the three-way connecting seat, which is far away from the threaded end, is fixedly provided with two groups of connecting parts, one end of each group of connecting parts is fixedly provided with an inserting part, the outer wall of each inserting part is circumferentially provided with a filling soft sheet, the two groups of inserting parts are provided with auxiliary catheters in an inserting manner, the two groups of auxiliary catheters are provided with throttling buckles, the inner part of the pipe wall of one end of the main, the air inlet pipe is communicated with the inflation cavity, a valve is fixedly arranged on the air inlet pipe, and one end port of the air inlet pipe is connected with an inflator pump.

Furthermore, the filling soft sheets are arranged into annular components, a plurality of groups of filling soft sheets are arranged in the circumferential direction of the inserting part at equal intervals, and the firmness and the tightness of the connection between the guide pipes are improved by the plurality of groups of filling soft sheets.

Furthermore, the filling film is inclined towards one side of the connecting part relative to the inserting part, so that the pipe can be conveniently inserted and installed, and the filling film is a member made of soft silica gel materials, so that the filling film has elasticity, and the connection tightness can be improved when the filling film is inserted into the auxiliary pipe.

Furthermore, the anti-blocking membrane is a component made of latex materials, and the initial state is a contraction state, and the anti-blocking membrane is tightly attached to the inner wall of one side of the main catheter, so that the catheter is convenient for infusion.

Furthermore, the inflator pump and the air inlet pipe are detachably mounted, so that the mounting operation is convenient.

Furthermore, the three-way connecting seat is trapezoidal, so that two groups of connecting parts are conveniently installed at one end of the three-way connecting seat.

Compared with the prior art, the beneficial effects of the utility model are that: this hemodialysis pipe, through the anti-blocking membrane that sets up inside the main duct, when the main duct is because long-time when keeping inside patient's health, aerify to the inside plenum chamber of main duct through the inflator pump, aerify the back and close the valve, make anti-blocking membrane aerify the back inflation, thereby fill the inside pipe wall of main duct one end, avoid the blood to flow into the pipeline, form the thrombus, the packing film that sets up simultaneously is slope form setting, can play fine sealed effect in the inside of grafting portion grafting to the auxiliary duct, simultaneously because the packing film has elasticity, grafting to the inside back of auxiliary duct, can be because elasticity consolidates auxiliary duct and grafting portion firm in connection, the condition of the easy appearance weeping and disconnection of traditional connection placement has been avoided.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is an overall front view of the present invention;

FIG. 2 is an enlarged view of the insertion part of the present invention;

fig. 3 is an internal view of the main duct of the present invention.

In the figure: 1. a secondary conduit; 2. a throttle buckle; 3. a connecting portion; 4. a three-way connecting seat; 5. fixing the buckle; 6. a threaded end; 7. a sleeve shaft; 8. a main duct; 9. an anti-blocking film; 10. a valve; 11. an air inlet pipe; 12. an inflator; 13. a plug-in part; 14. filling the soft sheet; 15. an inflation cavity.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a hemodialysis catheter comprises an auxiliary catheter 1, an inflator 12 and a main catheter 8, wherein one end of the main catheter 8 is provided with a three-way connecting seat 4, one end of the main catheter 8, which is cut on the three-way connecting seat 4, is fixedly provided with a sleeve shaft 7, one end of the three-way connecting seat 4 is fixedly provided with a threaded end 6, the main catheter 8 is fixedly connected with the three-way connecting seat 4 through the threaded end 6 through the sleeve shaft 7, the upper part of the three-way connecting seat 4 is fixedly provided with a fixed buckle 5, one end of the three-way connecting seat 4, which is far away from the threaded end 6, is fixedly provided with two groups of connecting parts 3, one end of the two groups of connecting parts 3 is fixedly provided with an inserting part 13, the outer wall of the inserting part 13 is circumferentially and fixedly provided with a filling soft sheet 14, the upper part of the two groups of inserting parts 13 is provided, the anti-blocking film 9 and the inner wall of the main catheter 8 form an inflation cavity 15, one end of the main catheter 8 and one end located in the inflation cavity 15 are fixedly provided with an air inlet pipe 11, the air inlet pipe 11 and the inflation cavity 15 are mutually communicated, a valve 10 is fixedly arranged on the air inlet pipe 11, and one end port of the air inlet pipe 11 is connected with an inflator 12.

As shown in fig. 2, the filling film 14 is provided as a circular ring-shaped member, and the filling film 14 is provided with a plurality of groups at equal intervals in the circumferential direction of the insertion portion 13, and the plurality of groups of filling films 14 increase the firmness and the tightness of the connection between the catheters.

As shown in fig. 2, the filling film 14 is inclined toward the connecting portion 3 with respect to the inserting portion 13, so as to facilitate the insertion and installation of the conduit, and the filling film 14 is made of a soft silicone material, so that the filling film 14 has elasticity, and the sealing performance of the connection can be increased when the filling film is inserted into the auxiliary conduit 1.

As shown in figure 1, the anti-blocking membrane 9 is a member made of latex material, and is in a contracted state in an initial state, and clings to the inner wall of one side of the main catheter 8, so that the catheter can conveniently carry out transfusion.

As shown in fig. 3, the inflator 12 and the air inlet tube 11 are detachably mounted, so as to facilitate the mounting operation.

As shown in fig. 1, the three-way connection seat 4 is trapezoidal, so that two sets of connection portions 3 are conveniently installed at one end of the three-way connection seat 4.

The utility model discloses a theory of operation and use flow: when the hemodialysis catheter is used, one end of a main catheter 8, which is internally provided with an anti-blocking film 9, is connected with a patient, attention is paid when the hemodialysis catheter is connected, the part of an air inlet pipe 11 on the main catheter 8 is kept outside the body of the patient, so that the subsequent inflation and anti-blocking use are convenient, meanwhile, the anti-blocking film 9 is ensured to be in a shrinkage shape and is tightly attached to the inner wall of the main catheter 8, then, a sleeve shaft 7 at one end of the main catheter 8 is connected with a threaded end 6 on a three-way connecting seat 4, after the hemodialysis catheter is installed, one ends of two sets of auxiliary catheters 1 are inserted into an inserting part 13, a filling soft sheet 14 arranged on the inserting part 13 can play a good sealing effect when the inserting part 13 is inserted into the auxiliary catheter 1, meanwhile, the filling soft sheet 14 has elasticity, after the auxiliary catheter 1 is inserted into the auxiliary catheter 1, the connection firmness of the auxiliary catheter 1 and the inserting part 13 is improved due to the elasticity, throttle buckle 2, can be when the non-operation of auxiliary catheter 1, folding auxiliary catheter 1 blocks up auxiliary catheter 1 through throttle buckle 2, when main catheter 8 one end is put the internal of keeping the patient, peg graft inflator pump 12 in the one end of intake pipe 11, and aerify main catheter 8 inside inflation chamber 15, aerify and accomplish and close valve 10 in the intake pipe 11, make the inside anti-blocking membrane 9 of main catheter 8 receive to aerify the back at main catheter 8 inside inflation, and fill the inside of main catheter 8, thereby prevent that blood from flowing into main catheter 8 and forming the embolism, when needs use, open valve 10 and release the inside gas of inflation chamber 15, anti-blocking membrane 9 shrink, breathe in to inflation chamber 15 inside through inflator pump 12 this moment, make anti-blocking membrane 9 hug closely main catheter 8's inside, make the blood circulation smooth and easy.

It should be noted that, in this document, the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Hemodialysis catheter, comprising a secondary catheter (1), an inflator (12) and a primary catheter (8), characterized in that: one end of the main guide pipe (8) is provided with a three-way connecting seat (4), one end of the main guide pipe (8) which is cut on the three-way connecting seat (4) is fixedly provided with a sleeve shaft (7), one end of the three-way connecting seat (4) is fixedly provided with a threaded end (6), the main guide pipe (8) is fixedly connected with the three-way connecting seat (4) through the sleeve shaft (7) through the threaded end (6), the upper part of the three-way connecting seat (4) is fixedly provided with a fixed buckle (5), one end of the three-way connecting seat (4) which is far away from the threaded end (6) is fixedly provided with two groups of connecting parts (3), one ends of the two groups of connecting parts (3) are fixedly provided with an inserting part (13), the outer wall of the inserting part (13) is circumferentially and fixedly provided with a filling soft sheet (14), the upper parts of the two groups of inserting parts (13) are, the fixed anti-blocking membrane (9) that is provided with in one end pipe wall that cover axle (7) was kept away from in main duct (8), anti-blocking membrane (9) forms inflation chamber (15) with the inner wall of main duct (8), the one end of main duct (8) and the fixed intake pipe (11) that is provided with in one end that is located inflation chamber (15), intake pipe (11) link up mutually with inflation chamber (15), fixed valve (10) that is provided with on intake pipe (11), the one end port of intake pipe (11) is connected with inflator pump (12).

2. A hemodialysis catheter according to claim 1, wherein: the filling soft sheets (14) are arranged into annular components, and a plurality of groups of the filling soft sheets (14) are arranged in the circumferential direction of the insertion part (13) at equal intervals.

3. A hemodialysis catheter according to claim 1, wherein: the filling soft sheet (14) is obliquely arranged towards one side of the connecting part (3) relative to the inserting part (13), and the filling soft sheet (14) is a member made of soft silica gel materials.

4. A hemodialysis catheter according to claim 1, wherein: the anti-blocking film (9) is a component made of latex material, and is in a shrinkage state in an initial state and clings to the inner wall of one side of the main catheter (8).

5. A hemodialysis catheter according to claim 1, wherein: the inflator pump (12) and the air inlet pipe (11) are detachably mounted.

6. A hemodialysis catheter according to claim 1, wherein: the three-way connecting seat (4) is in a trapezoidal arrangement.