CN210784604U

CN210784604U - Bleeding prevention device for connecting puncture needle

Info

Publication number: CN210784604U
Application number: CN201921537197.7U
Authority: CN
Inventors: 不公告发明人
Original assignee: Shenzhen Jinhui Medical Technology Co ltd
Current assignee: Shenzhen Jinhui Medical Technology Co ltd
Priority date: 2019-09-17
Filing date: 2019-09-17
Publication date: 2020-06-19
Anticipated expiration: 2029-09-17

Abstract

The application provides a device of preventing bleeding for connecting pjncture needle, it includes: a tube body and an end cap; the tube body comprises an outer tube body and an inner tube body, and the outer tube body and the inner tube body are transparent; the outer pipe body is arranged around the inner pipe body; the first end of the inner tube body extends to the outside of the first end of the outer tube body and is used for being plugged with the port of the puncture needle; the second end of the inner pipe body is positioned at the inner side of the second end of the outer pipe body; the first end of the outer tube body is combined on the peripheral surface of the inner tube body in a sealing way; the end cover is detachably combined on the second end of the outer tube body; the position of the end cover opposite to the second end of the inner tube body is formed by a film, so that a guide wire can conveniently penetrate through the film and then enter the inner tube body, and then enter the puncture needle through the first end of the inner tube body. Due to the plugging of the end cover, the blood can not be sprayed out; the inner tube body is thin, so that the bleeding speed can be observed conveniently, and the guide wire is not easy to bend when advancing in the inner tube body, so that the guide wire can smoothly pass through the inner tube body; the outer tube body is thick, so that the sprayed blood can be stored conveniently.

Description

Bleeding prevention device for connecting puncture needle

Technical Field

The present application relates to medical devices, and more particularly to a bleeding control device for use in connection with a puncture needle.

Background

The first step in the interventional procedure is to puncture the blood vessels, including arteries and veins, using a puncture needle. After the artery puncture, blood is ejected from a needle hole at the tail end of the puncture needle, and an operator judges whether the puncture is successful according to the phenomenon. The operator needs to insert the guide wire into the needle hole of the puncture needle and into the blood vessel as soon as possible to complete the subsequent interventional operation. Although the time from successful puncture to the insertion of the guide wire is short, the blood jet flows out due to the high arterial pressure, and a large amount of blood can be lost in a short time, so that the damage to the patient is caused. The blood loss to the sheet on the operating table even falls to the ground under the operating table and on the legs and vamps of the operators, which will undoubtedly increase the probability of pollution and cause discomfort to the operators.

In 'an interventional femoral artery puncture needle' with patent number 2015201635187, a needle handle is proposed as a blood storage body; however, the space of the blood storage body is large, the guide wire is easy to bend when advancing inside, the guide wire is not favorable for entering the puncture needle and the blood vessel, and the bleeding speed is also not favorable for observing when the blood storage body is large.

In the patent No. 2009200247710 entitled "A hemorrhage-preventing arterial puncture needle", it is proposed to use a side transparent flexible tube to store blood and to seal the distal end of the transparent flexible tube with a small round ball. This design is not conducive to observing bleeding rates; if the puncture needle enters a part of the blood vessel but does not enter the blood vessel completely, blood flows out but the speed is slow, the bleeding speed cannot be observed from the transparent hose on the side part, whether the needle completely enters the blood vessel cavity or not can not be judged, and the subsequent operation cannot be carried out, so that the puncture failure is finally caused.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present application aims to provide a bleeding preventing device for connection to a puncture needle, which facilitates observation of a bleeding speed and ensures smooth entry of a guide wire into the puncture needle.

The application provides a device of preventing bleeding for connecting pjncture needle, it includes: a tube body and an end cap;

the tube body comprises an outer tube body and an inner tube body, and the outer tube body and the inner tube body are transparent; the outer pipe body is arranged around the inner pipe body; the first end of the inner tube body extends to the outside of the first end of the outer tube body and is used for being plugged with the port of the puncture needle; the second end of the inner pipe body is positioned at the inner side of the second end of the outer pipe body; the first end of the outer tube body is combined on the peripheral surface of the inner tube body in a sealing way; the end cover is detachably combined on the second end of the outer tube body; the position of the end cover opposite to the second end of the inner tube body is formed by a film, so that a guide wire can conveniently penetrate through the film and then enter the inner tube body, and then enter the puncture needle through the first end of the inner tube body.

Preferably, the second end of the inner tube body is formed with a flare to facilitate guiding a guidewire into the inner tube body.

Preferably, the membrane is a waterproof breathable membrane.

Preferably, a convex part is formed on the outer side of the second end of the outer tube body; an L-shaped notch is formed on the annular side wall of the end cover; the bulge is used for being inserted into the L-shaped notch, so that the end cover and the outer pipe body are firmly combined.

Preferably, the outer diameter of the outer tube is 1-3 cm; the length of the outer pipe body is 3-10 cm.

Preferably, the second end of the inner tube is at a distance of 0.5cm from the second end of the outer tube.

According to the bleeding preventing device for connecting the puncture needle, the blood flows out of the thinner inner tube body through the double-tube structure of the outer tube body and the inner tube body, so that the blood flow speed is convenient to observe; the inner tube body is thin, the guide wire is not easy to bend when advancing in the inner tube body, and the guide wire can be ensured to smoothly pass through the inner tube body; the outer tube body is thicker and is used for storing blood flowing out of the inner tube body, and the end cover closes the second end of the outer tube body, so that the blood cannot be sprayed to the outside.

Drawings

Fig. 1 is a front view of a first embodiment of an anti-bleeding device for an attachment to a puncture needle according to the present application;

fig. 2 is a schematic cross-sectional view of the anti-bleeding device of fig. 1 in use attached to a puncture needle;

FIG. 3 is a front view of the catheter body of the anti-bleeding device of FIG. 1;

FIG. 4 is a schematic cross-sectional view of the tube of FIG. 3;

FIG. 5 is a left side view of the tube of FIG. 3;

FIG. 6 is a right side view of the tube of FIG. 3;

fig. 7 is a left side view of the end cap of the anti-bleeding device of fig. 1 in a configuration for attachment to a puncture needle;

fig. 8 is a schematic top view of a second embodiment of the anti-bleeding device of the present application for use in connection with a puncture needle;

fig. 9 is a front view schematically showing the tube body of the anti-bleeding device connected to the puncture needle of fig. 8.

Detailed Description

Hereinafter, the anti-bleeding device for connecting a puncture needle according to the present invention will be described in detail with reference to the accompanying drawings.

The application provides a device of preventing bleeding for connecting pjncture needle, it includes: a tube body and an end cap 30.

The tube body comprises an outer tube body 10 and an inner tube body 20, wherein the outer tube body 10 and the inner tube body 20 are both transparent and are made of transparent plastics for example; the outer tube 10 is disposed around the inner tube 20, the inner tube 20 preferably being disposed at the center of the outer tube; the first end 21 of the inner tube 20 extends to the outside of the first end of the outer tube 10 and is used for being plugged with a port of a puncture needle; the second end 22 of the inner tube 20 is located inside the second end of the outer tube 10, preferably 0.5cm from the second end of the outer tube 20. The first end of the outer tube 10 is closely coupled to the outer circumferential surface of the inner tube 20; the cap 30 is detachably coupled to the second end of the outer tube body 10; the end cap 30 is formed of a membrane, such as a silicone membrane or a waterproof, gas permeable membrane, located opposite the second end 22 of the inner tube 20 to facilitate passage of the guidewire through the membrane and into the interior of the inner tube 20, through the first end of the inner tube 20 and into the needle. The second end 22 of the inner tube 20 is formed with a flare to facilitate guiding a guidewire into the inner tube 20.

In another embodiment, a boss 11 is formed outside the second end of the outer tube 10; an L-shaped notch 32 is formed on the annular side wall of the end cover 30; the protrusion 11 is inserted into the L-shaped notch 32, as shown in fig. 8, so that the end cap 30 and the outer tube 10 form a stable combination and are not easy to fall off.

The outer diameter of the outer tube body 10 is 1-3 cm; the length of the outer tube body 10 is 3-10 cm.

When in use, the first end of the inner tube body extending to the outside of the outer tube body is inserted into the port of the puncture needle to form an integral connection; then the puncture needle is punctured into a blood vessel (such as an arterial blood vessel) of a patient, the outflow speed of blood in the inner tube body is observed, and whether the puncture is successful or not is judged; if the puncture is successful, the guide wire penetrates through the film of the end cover and then enters the inner tube body and further enters the puncture needle so as to implement the corresponding operation of the guide wire.

Due to the plugging of the end cover, the blood can not be sprayed out; the inner tube body is thin, so that the bleeding speed can be observed conveniently, and the guide wire is not easy to bend when advancing in the inner tube body, so that the guide wire can smoothly pass through the inner tube body; the outer tube body is thick, so that the sprayed blood can be stored conveniently.

The utility model provides a prevent bleeding device for connecting pjncture needle can prevent the blood loss that the puncture arouses, prevents that blood from polluting art person and operation table face, reduces and infects the probability, is convenient for accomplish the relevant operation of seal wire rapidly, reduces the art person and intervenes the time of operation under the ray, reduces the radiant quantity that art person received.

Claims

1. An anti-bleeding device for use in connection with a puncture needle, comprising: a tube body and an end cap;

2. An anti-bleeding device for use with an attachment puncture needle as defined in claim 1, wherein:

the second end of the inner tube body is provided with a bell mouth so as to guide a guide wire into the inner tube body conveniently.

3. An anti-bleeding device for use with an attachment puncture needle as defined in claim 1, wherein:

the film is a waterproof and breathable film.

4. An anti-bleeding device for use with an attachment puncture needle as defined in claim 1, wherein:

a convex part is formed on the outer side of the second end of the outer tube body; an L-shaped notch is formed on the annular side wall of the end cover; the bulge is used for being inserted into the L-shaped notch, so that the end cover and the outer pipe body are firmly combined.

5. An anti-bleeding device for use with an attachment puncture needle as defined in claim 1, wherein:

the outer diameter of the outer tube body is 1-3 cm; the length of the outer pipe body is 3-10 cm.

6. An anti-bleeding device for use with an attachment puncture needle as defined in claim 1, wherein:

the second end of the inner tube is at a distance of 0.5cm from the second end of the outer tube.