CN218165345U

CN218165345U - Single-needle double-cavity atrophy puncture needle

Info

Publication number: CN218165345U
Application number: CN202221646253.2U
Authority: CN
Inventors: 黄金圣
Original assignee: Huizhou Central People's Hospital
Current assignee: Huizhou Central People's Hospital
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-12-30
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a single-needle double-cavity atrophy puncture needle, which is characterized in that: the utility model discloses a puncture needle, two D shape lumens, syringe needle two-chamber connecting block, check valve, blood output interface, return blood interface isotructure realize that single-needle two-chamber flaccidity puncture needle design scientific and reasonable, simple structure, convenient operation, puncture volume are little. The damage of skin and internal fistula is reduced by the blind end needling, and the service life of the internal fistula is prolonged. The one-way valve, the multiple blood inlet holes and the multiple blood return holes reduce blood backflow and blood turbulence in the fistula. The puncture needle and the needle head double-cavity connecting block adopt the butted double-D-shaped pipe cavity to be respectively connected with the blood output pipe, the blood return pipe and the one-way valve, so that the puncture amount is reduced, the skin and internal fistula damage is reduced, the maintenance of the internal fistula is facilitated, and the service life of the internal fistula is further prolonged. The clamp type tube lock catch has good anti-falling performance, the needle holding fins on the two side fins are convenient to hold, and the fixing stability is high. Reduce the bleeding risk and reduce the pain of the patient. The defects of the prior art are overcome.

Description

Single-needle double-cavity flaccidity puncture needle

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a single-needle double-cavity flaccidity puncture needle.

Background

The interior flaccidity puncture of prior art adopts two independent pjncture needles and connecting pipe to be connected with hemodialysis machine after the puncture respectively on the internal fistula of artifical arteriovenous anastomosis fistulization, because the cycle of usual hemodialysis treatment is short, the frequency is high, and the interior flaccidity puncture of two positions will be carried out at every turn, cause patient's skin and the damage of interior flaccidity, increase the risk of bleeding, influence the life of interior flaccidity, again or make fistulization increase patient's misery repeatedly, it needs the certain time to wait for interior flaccidity maturity, it brings inconvenience to treat for follow-up hemodialysis. Therefore, the single-needle double-intracavity flaccidity puncture needle is created, the puncture amount is reduced, and the clinical significance is achieved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two intracavity atrophy pjncture needles of single needle, it is reasonable to have solved prior art's interior atrophy and worn the interior atrophy puncture that will carry out two points at every turn, cause patient's skin and the injury of interior atrophy, increase the risk of bleeding, influence the life of interior atrophy, once more or make fistulization increase patient's misery repeatedly, wait for interior atrophy ripe bring inconvenience, puncture frequency height, the big problem of puncture volume for follow-up hemodialysis treatment effectively to have solved effectively.

The technical principle of the utility model

The utility model discloses a single needle two-chamber puncture needle body and syringe needle two-chamber connecting block, advance the blood hole and return the blood hole and be connected with the D venturi tube chamber of the two D venturi tube chamber one sides of puncture needle body and connecting block respectively, the D venturi tube chamber of the two D venturi tube chamber one side of syringe needle two-chamber connecting block rear end is connected and is connected blood output tube and return the blood vessel respectively, be equipped with the blood inlet port and the return blood port connection constitution return circuit of clamp formula pipe hasp and check valve and hemodialysis machine on blood output tube and the return blood vessel respectively, realize that hemodialysis is as long as one needle is worn out the needle puncture, reduce the amount of puncture.

The utility model adopts the following technical scheme:

the utility model provides a two intracavity atrophy pjncture needles of single needle, includes pjncture needle, cecum acupuncture, advances blood hole, returns blood hole, two D shape lumens, syringe needle two-chamber connecting block, holds needle fin, blood output tube, returns blood vessel, presss from both sides formula pipe hasp, check valve, blood output interface, returns blood interface, its characterized in that:

the puncture needle is like an injection needle, the whole body of front end is equipped with the cecum acupuncture, cecum acupuncture rear end both sides are equipped with into blood hole and blood return hole respectively, be equipped with two D shape lumens in the puncture needle, two D shape lumen front ends respectively with advance blood hole and blood return jogged joint, the connection of puncture needle rear end is equipped with syringe needle two-chamber connecting block, syringe needle two-chamber connection front end is close to puncture needle connecting portion is equipped with the needle-holding fin, syringe needle two-chamber connecting block be equipped with two D shape lumens with the two D shape lumens that the puncture needle was equipped with correspond the connection, the two D shape lumens that syringe needle two-chamber connecting block was equipped with the lumen rear end connection of blood inlet pipe conduction one side is equipped with the blood output tube, the syringe needle two-chamber connecting block be equipped with two D shape lumens with the lumen rear end connection of blood return pipe conduction one side is equipped with the blood return pipe, connect respectively on blood output tube and the blood return pipe and be equipped with the clamp formula pipe lock catch respectively, with blood inlet pipe conduction the rear end connect and be equipped with the blood return pipe rear end connection be equipped with the check valve back connection constitute a kind of flaccidity needle.

Furthermore, the middle inside the puncture needle is axially provided with a longitudinal partition to form a double D-shaped tube cavity, the side wall of the D-shaped tube cavity on one side of the double D-shaped tube cavity is provided with 1-3 blood inlet holes in a penetrating manner, and the side wall of the D-shaped tube cavity on the other side is provided with 1-3 blood return holes in a penetrating manner.

Furthermore, the middle of the triangular inner part of the needle double-cavity connecting block is axially provided with a longitudinal partition to form a double-D-shaped tube cavity with the inner diameter of the rear end increased.

Further, the blood output interface is connected with a blood inlet port of the hemodialysis machine.

Further, the blood return interface is connected with a blood return port of the hemodialysis machine.

The utility model has the beneficial technical effects that:

the utility model discloses a two intracavity atrophy pjncture needles of single needle has solved prior art's interior atrophy and has worn the interior atrophy puncture that will carry out two points at every turn, cause patient's skin and the injury of interior atrophy, increase the risk of bleeding, influence the life of interior atrophy, once more or make fistulization increase patient's misery repeatedly, wait for interior atrophy ripe bring inconvenience, puncture frequency height, the big problem of puncture volume for follow-up hemodialysis treatment.

The utility model discloses a puncture needle, cecum acupuncture, blood inlet hole, return blood hole, two D shape lumens, syringe needle two-chamber connecting block, hold needle fin, blood output tube, return blood vessel, press from both sides the integrated configuration of formula pipe hasp, check valve, blood output interface, return blood interface, realize that a single-needle two-chamber atrophy puncture needle design scientific and reasonable, simple structure, convenient operation, puncture volume are little. The damage of skin and internal fistula is reduced by the blind end needling, and the service life of the internal fistula is prolonged. The one-way valve, the multiple blood inlet holes and the multiple blood return holes reduce blood backflow and blood turbulence in the fistula. The puncture needle and the needle head double-cavity connecting block adopt the butted double-D-shaped pipe cavity to be respectively connected with the blood output pipe, the blood return pipe and the one-way valve, so that the puncture amount is reduced, the skin and internal fistula damage is reduced, the maintenance of the internal fistula is facilitated, and the service life of the internal fistula is further prolonged. The service life of the internal fistula is prolonged to 6-8 years, even more than 10 years from about 3 years. The clamp type tube lock catch has good anti-falling performance, the needle holding fins on the two side fins are convenient to hold, and the fixing stability is high. Reduce the bleeding risk and reduce the pain of the patient. The defects of the prior art are overcome.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the exploded view of the translation bracket of the present invention.

Fig. 3 is a schematic view of the pipe clamp locking block of the present invention.

Shown in the figure: 1-puncture needle, 2-blind end puncture, 3-blood inlet hole, 4-blood return hole, 5-double D-shaped tube cavity, 6-needle head double-cavity connecting block, 7-needle holding wing panel, 8-blood output tube, 9-blood return tube, 10-clamp type tube lock catch, 11-one-way valve, 12-blood output interface and 13-blood return interface.

Detailed Description

The following description of the embodiments will be more helpful to the public, but the specific embodiments given by the applicant should not be considered as limiting the technical solution of the present invention, and any changes in the definition of the components or technical features and/or in the form of an integral structure, not essential changes, should be considered as the scope of protection defined by the technical solution of the present invention.

The embodiment is as follows:

the single-needle double-cavity flaccidity puncture needle shown in fig. 1-3 comprises a puncture needle 1, a blind end puncture needle 2, a blood inlet hole 3, a blood return hole 4, a double-D-shaped tube cavity 5, a needle double-cavity connecting block 6, a needle holding wing 7, a blood output tube 8, a blood return tube 9, a clamp-type tube lock catch 10, a one-way valve 11, a blood output interface 12 and a blood return interface 13.

The puncture needle 1 is first set. The puncture needle 1 is set to be an injection needle sample, a blind end acupuncture 2 is integrally arranged at the front end, and a blood inlet hole 3 and a blood return hole 4 are respectively arranged at two sides of the rear end of the blind end acupuncture 2. The middle inside the puncture needle 1 is axially provided with a longitudinal partition to form a double D-shaped tube cavity 5, one side of the double D-shaped tube cavity 5, the side wall of the D-shaped tube cavity, penetrates through and is provided with 1-3 blood inlet holes 3, and the other side of the double D-shaped tube cavity, penetrates through and is provided with 1-3 blood return holes 4. And respectively communicating the unilateral D-shaped pipe cavity at the front end of the double D-shaped pipe cavity 5 with the blood inlet hole 3 and the blood return hole 4. The rear end of the puncture needle 1 is connected with a needle head double-cavity connecting block 6, and the front end of the needle head double-cavity connecting block 6 is close to a connecting part of the puncture needle 1 and is provided with a needle holding wing piece 7. The needle double-cavity connecting block 6 is triangular, and a longitudinal partition is axially arranged in the middle of the needle double-cavity connecting block to form a double-D-shaped pipe cavity 5 with the inner diameter of the rear end increased.

Needle double lumen connector block 6 is then placed. And the needle head double-cavity connecting block 6 is arranged into a double-D-shaped tube cavity 5 which is correspondingly connected with the double-D-shaped tube cavity 5 arranged on the puncture needle 1. The double-D-shaped tube cavity 5 arranged on the needle double-cavity connecting block 6 is connected with the rear end of the tube cavity on one side of the blood inlet hole 3, which is communicated with the tube cavity, to form a blood output tube 8. A double-D-shaped pipe cavity 5 arranged on the needle double-cavity connecting block 6 is connected with the rear end of the pipe cavity at the side where the blood return hole 4 is communicated with the pipeline, and a blood return pipe 9 is arranged. The blood output pipe 8 and the blood return pipe 9 are respectively connected with a clamp type pipe lock catch 10, the rear ends of the clamp type pipe lock catch and the blood return pipe are respectively connected with a check valve 11, and the rear end of the check valve 11 communicated with the blood inlet hole 3 is connected with a blood output interface 12. A blood return interface 13 is connected and arranged at the rear end of the one-way valve 11 communicated with the blood return hole 4.

Further, the blood output port 12 is connected to a blood inlet port of a hemodialysis machine.

Further, the blood return interface 13 is connected with a blood return port of the hemodialysis machine. The implementation of the single-needle double-chamber flaccidity puncture needle is completed.

Of course, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it is intended that all such modifications and variations be considered within the spirit or scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a two intracavity atrophy pjncture needles of single needle, includes pjncture needle, cecum acupuncture, advances blood hole, returns blood hole, two D shape lumens, syringe needle two-chamber connecting block, holds needle fin, blood output tube, returns blood vessel, presss from both sides formula pipe hasp, check valve, blood output interface, returns blood interface, its characterized in that:

2. The single-needle double-intracavitary atrophy puncture needle of claim 1, wherein: the middle inside the puncture needle is axially provided with a longitudinal partition to form a double-D-shaped tube cavity, the side wall of the D-shaped tube cavity on one side of the double-D-shaped tube cavity is provided with 1-3 blood inlet holes in a penetrating manner, and the side wall of the D-shaped tube cavity on the other side is provided with 1-3 blood return holes in a penetrating manner.

3. The single-needle double-intracavitary atrophy puncture needle of claim 1, wherein: the needle double-cavity connecting block is triangular, and the middle of the inside of the connecting block is axially provided with a longitudinal partition to form a double-D-shaped tube cavity with the inner diameter of the rear end increased.

4. The single-needle double-intracavitary atrophy puncture needle of claim 1, wherein: the blood output interface is connected with the blood inlet port of the hemodialysis machine.

5. The single-needle double-lumen fistula puncture needle as claimed in claim 1, wherein: the blood return interface is connected with a blood return port of the hemodialysis machine.