CN210250751U

CN210250751U - Disposable anti-reflux venous transfusion additional device

Info

Publication number: CN210250751U
Application number: CN201920035811.3U
Authority: CN
Inventors: 邹辉煌; 朱世超; 倪伟伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-09
Filing date: 2019-01-09
Publication date: 2020-04-07
Anticipated expiration: 2029-01-09

Abstract

A disposable anti-reflux venous transfusion additional device solves the problem that the existing venous transfusion is not beneficial to judging whether a catheter of a patient is smooth or not; the auxiliary catheter comprises a venous catheter and an auxiliary catheter, wherein the auxiliary catheter comprises a soft catheter, one end of the soft catheter is provided with a plug and a first safety interface, the plug is arranged in the first safety interface, the other end of the auxiliary catheter is provided with a second safety interface, and a one-way circulation device is arranged in the middle of the auxiliary catheter; the utility model discloses thereby can prevent effectively that blood from flowing back to venous transfusion device and avoid the production of pipe interior thrombus to guaranteed patient's safety, reduced the medical cost simultaneously, improved patient's venous catheter life, thereby alleviateed patient's panic psychology and improved the satisfaction and improve the medical relation.

Description

Disposable anti-reflux venous transfusion additional device

Technical Field

The utility model belongs to the technical field of medical auxiliary instrument, especially relate to a disposable venous transfusion auxiliary device that prevents against current.

Background

At present, a special anti-reflux infusion additional device does not exist, valves are arranged in partial catheter lumens, but blood cannot be pumped back after the anti-reflux infusion additional device is placed in a patient body, whether the catheter of the patient is unobstructed or not is not easy to judge, and potential safety hazards of venous thrombus displacement are increased by directly injecting the anti-reflux infusion additional device.

The existing clinical transfusion process has the defects that the blood returning time is too long and the tube is easy to block, or the blood is not washed cleanly after countercurrent, and the infection and the workload of nurses are increased by frequent replacement.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model aims at providing a disposable venous transfusion additional device that prevents against current has solved present venous transfusion and has been unfavorable for judging whether unobstructed problem of patient's pipe.

In order to achieve the above object, the utility model provides a following technical scheme: the multifunctional venous catheter comprises a venous catheter and an additional catheter, wherein the additional catheter comprises a soft catheter, one end of the soft catheter is provided with a plug and a first safety interface, the plug is arranged in the first safety interface, the other end of the additional catheter is provided with a second safety interface, and a one-way circulation device is arranged in the middle of the additional catheter.

Preferably, the first safety connector is provided with an internal thread, the intravenous catheter is provided with a first branch pipe and a second branch pipe, and the connector of the first branch pipe is provided with an external thread.

Preferably, a screw thread is arranged outside the second safety interface.

Preferably, the first branch pipe and the second branch pipe are provided with clamping devices.

Preferably, the one-way circulation device comprises a cylindrical pipe, a one-way valve is arranged in the cylindrical pipe, and a duckbilled mouth part is arranged on the one-way valve.

Preferably, the first safety interface and the second safety interface are respectively provided with an extension seat.

Compared with the prior art, the beneficial effects of the utility model are that: can effectively prevent blood from reversely flowing back to the venous transfusion device, thereby avoiding the generation of thrombus in the catheter, ensuring the safety of patients, simultaneously reducing the medical cost, prolonging the service life of the venous catheter of the patients, lightening the panic psychology of the patients, and improving the satisfaction and the medical relationship.

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 a schematic view of the overall structure of the present invention.

Fig. 2 is the internal structure schematic diagram of the check valve of the present invention.

Fig. 3 is an enlarged schematic view of a portion a of fig. 1.

Fig. 4 is an enlarged schematic view of part B of fig. 1.

Fig. 5 is an enlarged schematic view of the portion C in fig. 1.

In the figure: 1-venous catheter, 2-additional tube, 3-soft catheter, 4-plug, 5-first safety interface, 6-second safety interface, 7-internal thread, 8-external thread, 9-screw buckle, 10-one-way valve, 11-mouth, 12-lengthened seat, 13-clamp, 14-first branch tube and 15-second branch tube.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. The attached drawings are simplified schematic diagrams, and only illustrate the basic structure of the present invention in a schematic manner, and thus only show the components related to the present invention.

Example (b): as shown in fig. 1-5, the utility model discloses a ductus venosus 1 and additional pipe 2, additional pipe 2 includes flexible pipe 3, flexible pipe 3's one end is equipped with plug 4 and first safe interface 5, plug 4 is in first safe interface 5, and the other end of additional pipe 2 is equipped with second safe interface 6, and the centre of additional pipe 2 is equipped with one-way circulation device.

In order to facilitate connection and disassembly, the first safety connector 5 is provided with an internal thread 7, the intravenous catheter 1 is provided with a first branch pipe 14 and a second branch pipe 15, and the connector of the first branch pipe 14 is provided with an external thread 8.

Wherein, the second safety interface 6 is externally provided with a screw thread 9.

As shown in fig. 5, in order to prevent the reverse flow of blood at ordinary times, the first branch tube 14 and the second branch tube 15 are provided with the clamp 13, and the clamp 13 is light and integrally formed and has a clamp groove with a gradually reduced space in the middle.

The one-way circulation device comprises a cylindrical pipe, a one-way valve 10 is arranged in the cylindrical pipe, and a duckbilled mouth 11 is arranged on the one-way valve 10. The check valve 10 and the mouth part 11 thereof are made of silica gel, when in transfusion, the liquid medicine enters the cylindrical tube and then passes through the check valve 10, when passing through the check valve 10, because the pressure of the liquid medicine is greater than the venous pressure, the mouth part 11 of the check valve 10 is opened, then the liquid medicine enters the venous catheter 1 for transfusion, when the liquid medicine is completely transfused or the venous pressure is greater than the transfusion gravity, under the action of the memory material of the mouth part 11 of the check valve 10, the mouth part 11 is closed, thereby effectively preventing the blood from reversely flowing back to the venous transfusion device, and avoiding the generation of thrombus in the catheter.

For convenience of operation, the first safety interface 5 and the second safety interface 6 are respectively provided with an extension seat 12.

When the infusion is stopped, the tube needs to be flushed before the tube is sealed, the tube needs to be flushed before the medicine is replaced or the infusion is restarted, the tube flushing liquid is usually selected from normal saline and injected by an injector, and a pulse tube flushing method is used to enable the tube flushing liquid to form a small vortex in the catheter so as to enhance the tube flushing effect. But at present most ductus venosus intracavity is equipped with the valve, has not taken back blood after putting into the patient internally, is unfavorable for judging whether unobstructed of patient's pipe, has directly injected the potential safety hazard that has increased venous thrombosis aversion, so there is not the valve in the ductus venosus 1 lumen of this embodiment, before the wash pipe, can take back blood through second branch pipe 15 earlier and examine ductus venosus 1 unobstructed, carry out the wash pipe after examination ductus venosus 1 is unobstructed.

When in use, the additional pipe 2 is connected between the infusion set and the intravenous catheter, namely, the end of the plug 4 and the first safety interface 5 is connected with the first branch pipe 14 of the intravenous catheter 1, and the end of the second safety interface 6 is connected with the infusion set; and then checking whether the venous catheter is unobstructed, opening the infusion device and the clamp 13 for infusion, automatically closing the anti-reflux one-way valve 10 when liquid infusion is finished or the venous pressure is greater than the infusion gravity, effectively preventing blood from reversely flowing back to the venous infusion device so as to avoid thrombus in the catheter, flushing the catheter again after the infusion is finished, finally clamping the first branch tube 14 by the clamp 13, and then taking down the additional tube 2.

The utility model discloses novel structure, think about ingeniously, easy operation is practical, thereby can prevent effectively that blood from flowing back to the production of thrombus in the vein infusion set, thereby guaranteed patient's safety, reduced the medical cost simultaneously, improved patient's venous catheter life, thereby alleviateed patient's panic psychology and improved the satisfaction and improve the medical relation.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A disposable anti-reflux venous transfusion additional device comprises an intravenous catheter (1) and an additional tube (2), and is characterized in that: the additional pipe (2) comprises a soft pipe (3), one end of the soft pipe is provided with a plug (4) and a first safety interface (5), the plug (4) is arranged in the first safety interface (5), the other end of the additional pipe (2) is provided with a second safety interface (6), and a one-way circulation device is arranged in the middle of the additional pipe (2).

2. The disposable anti-reflux intravenous infusion set as defined in claim 1, wherein: first safe interface (5) are equipped with internal thread (7), be equipped with first branch pipe (14) and second branch pipe (15) on venous catheter (1), the connector of first branch pipe (14) is equipped with external screw thread (8).

3. The disposable anti-reflux intravenous infusion set as defined in claim 2, further comprising: and a screw buckle (9) is arranged outside the second safety interface (6).

4. The disposable anti-reflux intravenous infusion set as defined in claim 2, further comprising: the first branch pipe (14) and the second branch pipe (15) are provided with clamping devices (13).

5. The disposable anti-reflux intravenous infusion set as defined in claim 1, wherein: the one-way circulation device comprises a cylindrical pipe, a one-way valve (10) is arranged in the cylindrical pipe, and a duckbilled mouth part (11) is arranged on the one-way valve (10).

6. The disposable anti-reflux intravenous infusion set as defined in claim 1, wherein: the first safety interface (5) and the second safety interface (6) are respectively provided with an extension seat (12).