CN215078456U - Improved generation artery pjncture needle - Google Patents

Abstract

The utility model discloses an improved generation artery pjncture needle, include: the catheter, the flow limiting mechanism and the puncture mechanism; the puncture mechanism is arranged on the catheter and is used for being matched with invasive arterial pressure monitoring work; the utility model discloses a puncture device, including the pipe seat, the flow-limiting mechanism is installed on the pipe, the flow-limiting mechanism includes the casing, the body of rod is installed to the inside wall of casing, the clamp plate is installed to the lateral wall of the body of rod, can seal pipe and route earlier when the puncture, even if the puncture is successful also can not take place blood and gush out, thereby avoid polluting, convenient to use personnel operate, and the flow-limiting mechanism only need use one hand to operate, do not need two hands simultaneous operation, make things convenient for the user of service to carry out other operations, and adopt the closed pipeline of integral type, need not connect the puncture pipe on the pipe seat after the puncture again, but directly set up the puncture pipe on the pipe seat, the puncture step is optimized, and use efficiency and security are improved.

Description

Improved generation artery pjncture needle

Technical Field

The utility model relates to a pjncture needle technical field specifically is an improved generation artery pjncture needle.

Background

The puncture needle is a medical instrument for sampling and injecting tissues of various organs such as kidney, liver, lung, mammary gland, thyroid gland, prostate, pancreas, testis, uterus, ovary, body surface and the like in minimally invasive surgery. When the existing artery puncture needle is used, the needle core is usually taken out and then the puncture tube and the current-limiting switch device are connected, invasive artery pressure monitoring work can be smoothly carried out, and the condition of blood gushing and pollution is easily caused.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improved generation artery pjncture needle 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: an improved arterial puncture needle comprising: the catheter, the flow limiting mechanism and the puncture mechanism;

the puncture mechanism is arranged on the catheter and is used for being matched with invasive arterial pressure monitoring work;

the flow limiting mechanism is installed on the guide pipe, the flow limiting mechanism comprises a shell, a rod body is installed on the inner side wall of the shell, a pressing plate is installed on the outer side wall of the rod body, the outer side wall of the pressing plate is in sliding connection with the inner side wall of the shell, two sliding grooves are symmetrically formed in the outer portion of the shell, and the inner side walls of the sliding grooves are in sliding connection with a U-shaped block.

Through adopting above-mentioned technical scheme, through using current-limiting mechanism, can extrude the pipe through the clamp plate when the puncture, seal pipe and passageway, can not take place blood and gush out when the puncture is successful to avoid blood to gush out and cause the pollution.

Preferably, the puncture mechanism includes tube socket and puncture pipe, puncture pipe install in the one end of pipe, the tube socket is installed the one end of keeping away from the puncture pipe of pipe, the internally mounted of tube socket has the hose, the inside sliding connection of tube socket has the needle file, the internally mounted of needle file has the nook closing member, the outside of nook closing member with the inside sliding connection of hose.

By adopting the technical scheme, after the needle core and the hose enter the blood vessel, the needle seat and the needle core are drawn out, the hose is left in the blood vessel, then the blood flows into the catheter from the tube seat, and invasive arterial pressure monitoring work is carried out in the puncture tube.

Preferably, a heparin cap is sleeved outside the puncture tube.

By adopting the technical scheme, the formation of thrombus is prevented by injecting the heparin sodium solution into the heparin cap.

Preferably, the outer side wall of the needle seat is provided with a blade handle.

By adopting the technical scheme, the needle seat can be conveniently taken out.

Preferably, a partition plug is installed inside the tube seat, and the inside of the partition plug is in sliding connection with the outside of the needle core.

Through adopting above-mentioned technical scheme, through setting up the wall stopper, after taking the nook closing member out, the material of wall stopper is the rubber material, plays the leak protection effect to the pipe seat after automatic retraction.

Preferably, the outer part of the petiole is provided with anti-skid grains.

Through adopting above-mentioned technical scheme, conveniently grasp the petiole, increase the frictional force of petiole.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses increased liquid current-limiting mechanism on the artery pjncture needle, can seal pipe and route earlier when the puncture, even if the puncture is successful can not take place blood and gush out yet, thereby avoid polluting, convenient to use personnel operate, and current-limiting mechanism only need use one hand to operate, do not need two hands concurrent operation, make things convenient for use personnel to carry out other operations, and adopt the closed pipeline of integral type, need not puncture the union coupling again on the tube socket after the puncture, but directly set up puncture tube on the tube socket, the puncture step has been optimized, use efficiency and security have been improved.

Drawings

FIG. 1 is a schematic structural view of an improved arterial puncture needle of the present invention;

fig. 2 is a schematic structural view of the current limiting structure of the present invention;

fig. 3 is a schematic view of the internal structure of the housing of the present invention;

fig. 4 is a schematic view of the internal structure of the tube seat of the present invention.

In the figure: 1. a conduit; 2. a needle seat; 3. a tube holder; 4. a hose; 5. a needle core; 6. a petiole; 7. anti-skid lines; 8. a housing; 9. a U-shaped block; 10. pressing a plate; 12. a puncture tube; 13. a heparin cap; 14. a chute; 15. a rod body; 16. and a blocking plug.

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. 1-4, the present invention provides a technical solution:

an improved arterial puncture needle comprising: the device comprises a catheter 1, a flow limiting mechanism and a puncture mechanism; wherein, the puncture mechanism is arranged on the catheter 1; wherein, current limiting mechanism installs on pipe 1, and current limiting mechanism includes casing 8, and the body of rod 15 is installed to the inside wall of casing 8, and clamp plate 10 is installed to the lateral wall of the body of rod 15, and clamp plate 10's lateral wall and casing 8's inside wall sliding connection, two spouts 14 have been seted up to casing 8's outside symmetry, and the inside wall sliding connection of two spouts 14 has U-shaped piece 9.

Through using current-limiting mechanism, can extrude pipe 1 through clamp plate 10 during the puncture, seal pipe 1 and passageway, can not take place blood and gush out when the puncture is successful to avoid blood to gush out and cause the pollution.

Specifically, the puncture mechanism includes tube socket 3 and puncture tube 12, puncture tube 12 is installed in the one end of pipe 1, tube socket 3 is installed in the one end of pipe 1 far away from puncture tube 12, the internally mounted of tube socket 3 has hose 4, the inside sliding connection of tube socket 3 has needle file 2, the internally mounted of needle file 2 has nook closing member 5, the outside of nook closing member 5 and the inside sliding connection of hose 4, after nook closing member 5 and hose 4 get into the blood vessel, take out needle file 2 and nook closing member 5, make hose 4 stay in the blood vessel, then blood flows into pipe 1 from tube socket 3, there is invasive arterial pressure monitoring work at puncture tube 12.

Specifically, a heparin cap 13 is fitted to the outside of the puncture tube 12, and a heparin sodium solution is injected into the heparin cap 13 to prevent thrombus formation.

Specifically, the outer side wall of the needle base 2 is provided with the petiole 6, so that the needle base 2 can be conveniently taken out.

Specifically, the inside of the tube seat 3 is provided with the partition plug 16, the inside of the partition plug 16 is in sliding connection with the outside of the stylet 5, and the partition plug 16 is arranged, so that after the stylet 5 is pulled out, the partition plug 16 is made of rubber, and the tube seat 3 can be prevented from leaking after being automatically retracted.

Specifically, the anti-slip grains 7 are formed in the outer portion of the petiole 6, so that the petiole 6 can be conveniently gripped, and the friction force of the petiole 6 is increased.

The working principle is as follows: after the user gets into the blood vessel with nook closing member 5 and hose 4, take needle file 2 and nook closing member 5 out, then put into casing 8 with clamp plate 10, promote one side of keeping away from body of rod 15 with U-shaped piece 9, extrude clamp plate 10, clamp plate 10 extrudees pipe 1, seal pipe 1 and passageway, can not take place blood when the puncture is successful and gush out, thereby avoid blood to gush out and cause the pollution, reverse slip U-shaped piece 9 thereupon, make clamp plate 10 no longer extrude clamp plate 10, blood flows into puncture tube 12 from pipe 1, then from having the artery of creating in puncture tube 12 and pressing monitoring work.

To sum up: the utility model discloses increased liquid current-limiting mechanism on the artery pjncture needle, can seal pipe 1 and route earlier when the puncture, even if the puncture is successful also can not take place blood and gush out, thereby avoid polluting, convenient to use personnel operate, and current-limiting mechanism only need use one hand to operate, do not need two hands simultaneous operation, make things convenient for use personnel to carry out other operations, and adopt the closed pipeline of integral type, need not connect puncture pipe 12 on tube socket 3 after the puncture again, but directly set up puncture pipe 12 on tube socket 3, the puncture step has been optimized, use efficiency and security have been improved.

The part not involved in the utility model is the same as the prior art or can be realized by adopting the prior art. 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 (6)

1. An improved arterial puncture needle, comprising: the device comprises a catheter (1), a flow limiting mechanism and a puncture mechanism;

wherein the puncture mechanism is mounted on the catheter (1);

wherein, current-limiting mechanism installs on pipe (1), current-limiting mechanism includes casing (8), the body of rod (15) is installed to the inside wall of casing (8), clamp plate (10) are installed to the lateral wall of the body of rod (15), the lateral wall of clamp plate (10) with the inside wall sliding connection of casing (8), two spout (14), two have been seted up to the outside symmetry of casing (8) the inside wall sliding connection of spout (14) has U-shaped piece (9).

2. An improved arterial puncture needle according to claim 1, characterized in that: puncture mechanism includes tube socket (3) and puncture tube (12), puncture tube (12) install in the one end of pipe (1), tube socket (3) are installed the one end of keeping away from puncture tube (12) of pipe (1), the internally mounted of tube socket (3) has hose (4), the inside sliding connection of tube socket (3) has needle file (2), the internally mounted of needle file (2) has nook closing member (5), the outside of nook closing member (5) with the inside sliding connection of hose (4).

3. An improved arterial puncture needle according to claim 2, characterized in that: a heparin cap (13) is sleeved outside the puncture tube (12).

4. An improved arterial puncture needle according to claim 3, wherein: the outer side wall of the needle seat (2) is provided with a petiole (6).

5. An improved arterial puncture needle according to claim 3, wherein: the needle core is characterized in that a partition plug (16) is installed inside the tube seat (3), and the inside of the partition plug (16) is in sliding connection with the outside of the needle core (5).

6. An improved arterial puncture needle according to claim 4, wherein: the outer part of the petiole (6) is provided with anti-skid grains (7).

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