CN210057138U

CN210057138U - Medical anti-backflow L valve

Info

Publication number: CN210057138U
Application number: CN201821267515.8U
Authority: CN
Inventors: 穆永旭; 穆中丞
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-06
Filing date: 2018-08-06
Publication date: 2020-02-14
Anticipated expiration: 2028-08-06

Abstract

The utility model discloses a medical anti-backflow L valve, belonging to the medical appliance. This reality has novel including the L valve body, this internal bracing piece that establishes of L valve, bracing piece one end is fixed in L valve body blind end inner wall, and the other end is fixed in on the filter screen, the cover is equipped with the spring on the bracing piece, prevents the refluence membrane, prevent that the refluence membrane is located between spring and the filter screen to can remove on the bracing piece. The utility model discloses a prevent membrane of backflowing and the waste of medicine when having solved through pipe perfusion medicine or radiography, avoid causing table surface's pollution in operation process, the filter screen has solved the medicine filtering problem, is favorable to treating the patient.

Description

Medical anti-backflow L valve

Technical Field

The utility model relates to a medical instrument, specifically say so, relate to a medical anti-backflow L valve.

Background

Interventional therapy, an emerging therapeutic approach between surgical and medical therapy, including both intravascular and non-vascular interventional therapies. After more than 30 years of development, the patient is called three-pillar department of surgery and medicine. In brief, the interventional therapy is a technique of treating and diagnosing the local focus of infection under the guidance of an imaging device by making a micro channel with a diameter of several millimeters on a blood vessel and skin or through an original pipeline of a human body without operating to expose the focus of infection. Where drug infusion via a catheter and imaging techniques are critical and necessary. In clinical operation, when medicine is infused and radiography is carried out through a catheter, the catheter and an injector are usually not connected in place and in time, and the problems of backflow and filtration exist, so that blood and medicine waste, foreign body embolism and pollution to a working table surface are caused.

SUMMERY OF THE UTILITY MODEL

The utility model solves the technical problem of providing a medical anti-backflow L valve, which can avoid the waste of blood and medicine, the embolism of foreign matters and the pollution to the working table surface, and has convenient operation.

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

the utility model provides a medical anti-reflux L valve, includes the L valve body, L valve body one end is the injection end, and the other end is the pipe end, establish the bracing piece in the L valve body, bracing piece one end is fixed in L valve body blind end inner wall, and the other end is fixed in on the filter screen, the cover is equipped with the spring on the bracing piece, prevents the refluence membrane, prevent that the refluence membrane is located between spring and the filter screen to can remove on the bracing piece.

The filter screen is arranged in the medicine injection end pipe.

The utility model discloses technical effect includes:

the utility model discloses this internal anti-refluence membrane that is equipped with of L valve, anti-refluence membrane are located between spring and the filter screen, can remove along with the spring on the bracing piece.

The utility model discloses mainly establish refluence membrane, filter screen in the L valve body, liquid medicine pushes away the refluence membrane compression spring when the injection, makes the liquid medicine get into the pipe smoothly. After the medicine is injected, the spring retracts when the injector is pulled out, and the backflow prevention film blocks the filter screen, so that the waste of blood and medicine, the embolism of foreign matters and the pollution to a working table surface can be avoided.

Drawings

FIG. 1 is a schematic view of the anti-reflux L-valve for medical use of the present invention;

FIG. 2 is a schematic structural view of the medical anti-backflow L valve of the present invention;

fig. 3 is a schematic structural diagram of the middle filter screen of the present invention.

Detailed Description

The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce it.

As shown in fig. 1, it is an outline view of the medical anti-reflux L valve of the present invention; as shown in fig. 2, is a schematic structural view of the medical anti-backflow L valve of the present invention; as shown in fig. 3, is a schematic structural diagram of the middle filter screen of the present invention.

The medical anti-reflux L valve is provided with a medicine injection end 1, a catheter end 2, a spring 3, an anti-reflux membrane 4, a filter screen 5 and a support rod 6. One end of a support rod 6 is fixed on the inner wall of the closed end of the L-shaped valve body, the other end of the support rod is fixed on a support rod connecting port 8 of the filter screen, a spring 3 and an anti-backflow membrane 4 are sleeved on the support rod 6, and the anti-backflow membrane 4 is located between the spring 3 and the filter screen 5 and can move on the support rod 6. The filter screen 5 is tightly combined with the medicine injection end 1, and a support rod connecting port 8 and a mesh cloth 7 are arranged on the filter screen 5.

The utility model discloses can connect the syringe through injection end 1, pipe end 2 connecting tubes, liquid medicine promotes prevents reverse flow membrane 4 compression spring 3 when the injection, makes the liquid medicine get into the pipe smoothly. After the medicine is injected, the spring 3 retracts when the injector is pulled out, and the backflow prevention film 4 blocks the filter screen 5, so that the waste of blood and medicine, the embolism of foreign matters and the pollution to a working table surface can be avoided.

It will be understood that the foregoing description is by way of example and explanatory only and is not intended to limit the invention, which is not limited to the structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. The utility model provides a medical anti-L valve that flows back, includes the L valve body, L valve body one end is for annotating the medicine end, and the other end is pipe end, its characterized in that: the utility model discloses a medicine injection device, including L valve body, bracing piece, filter screen, anti-reflux membrane, medicine injection end pipe, bracing piece connecting port and screen cloth are arranged in to the L valve body, bracing piece one end is fixed in L valve body blind end inner wall, and the other end is fixed in on the filter screen, the cover is equipped with the spring on the bracing piece, prevents the reflux membrane, prevent that the reflux membrane is located between spring and the filter screen to can remove along with the spring on the bracing piece.