CN212395013U

CN212395013U - Percutaneous lung puncture trocar

Info

Publication number: CN212395013U
Application number: CN201920997885.5U
Authority: CN
Inventors: 曹阵学; 冯沁; 潘文; 王云
Original assignee: Qingdao Fuwai Cardiovascular Hospital Co ltd
Current assignee: Qingdao Fuwai Cardiovascular Hospital Co ltd
Priority date: 2019-06-29
Filing date: 2019-06-29
Publication date: 2021-01-26
Anticipated expiration: 2029-06-29

Abstract

The utility model discloses a percutaneous lung puncture trocar, including the trocar main part, trocar main part top is equipped with the tail-stock, the tail-stock bottom is equipped with circular projection, trocar main part bottom is equipped with the needle tubing, the needle tubing runs through circular projection and extends to in the tail-stock, the inside anti-reflux valve that is equipped with of tail-stock, the tail-stock inner wall is equipped with first spring in anti-reflux valve top one side, the first wedge of one end fixedly connected with of tail-stock inner wall is kept away from to first spring. The utility model has scientific and reasonable structure and safe and convenient use, and the anti-reflux valve, the first wedge block and the second wedge block are arranged, so that the tail part of the trocar is automatically closed when the biopsy needle or the trocar core is pulled out, 0 air pressure is formed, gas can not enter the trocar from the outside and can not circulate blood, and the occurrence of pneumothorax and air embolism is effectively prevented; through setting up first spring and second spring, make improvement percutaneous lung puncture trocar function more reliable.

Description

Percutaneous lung puncture trocar

Technical Field

The utility model belongs to the technical field of the design of lung puncture trocar and specifically relates to a percutaneous lung puncture trocar.

Background

For advanced lung cancer, particularly for patients with organ metastasis or lung cancer invading the chest wall, in order to obtain pathological diagnosis and more accurate treatment, percutaneous lung aspiration biopsy is often performed, great care is taken for patients with only one isolated nodule, the advanced lung cancer cannot be changed into advanced cancer through early diagnosis, unnecessary injury to the patients due to aspiration complications cannot be caused, and how to apply the percutaneous lung aspiration technology to exert the greatest advantage and control the complications is an important problem to be considered by doctors firstly.

However, the lung puncture trocar equipment on the market at present has certain use risk, a closed anti-reflux device is not provided, and complications possibly occurring in percutaneous lung puncture biopsy under CT guidance mainly comprise pneumothorax, air embolism, bleeding, implantation metastasis and the like.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide percutaneous lung puncture trocar to solve above-mentioned problem.

In order to achieve the above object, the utility model provides a following technical scheme: including the trocar main part, trocar main part top is equipped with the tail-pillar, the tail-pillar bottom is equipped with circular projection, trocar main part bottom is equipped with the needle tubing, the needle tubing runs through circular projection and extends to in the tail-pillar, the inside anti-reflux valve that is equipped with of tail-pillar, anti-reflux valve and needle tubing fixed connection, the tail-pillar inner wall is equipped with first spring in anti-reflux valve top one side, the first wedge of one end fixedly connected with of tail-pillar inner wall is kept away from to first spring, the tail-pillar inner wall is equipped with the second spring in anti-reflux valve top opposite side, the one end fixedly connected with second wedge that the second spring is close to first wedge.

As an optimized technical proposal of the utility model, the round convex column is internally provided with a round hole matched with the needle tube.

As an optimized technical proposal of the utility model, the anti-reflux valve is internally provided with a baffle plate for limiting the position of the needle tube.

As an optimized technical solution of the present invention, the first wedge and the second wedge are made of aluminum material.

As an optimized technical scheme of the utility model, first spring and second spring are made by copper material.

As an optimized technical scheme of the utility model, the top of the anti-backflow valve is provided with a wear-resistant layer.

Compared with the prior art, the beneficial effects of the utility model are that: by arranging the anti-reflux valve, the first wedge-shaped block and the second wedge-shaped block, the tail of the trocar is automatically closed when the biopsy needle or the trocar core is pulled out, 0 air pressure is formed, and air cannot enter blood circulation from the outside, so that pneumothorax and air embolism are effectively prevented; through setting up first spring and second spring, make percutaneous lung puncture trocar function more reliable.

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 structural view of a percutaneous lung puncture trocar according to the present invention;

FIG. 2 is a cross-sectional view of a percutaneous lung puncture trocar in accordance with the present invention;

FIG. 3 is an enlarged view of the trocar for percutaneous lung puncture of the present invention at A in FIG. 2;

in the figure: 1. a trocar body; 2. a tail pillar; 3. a circular convex column; 4. a needle tube; 5. an anti-reflux valve; 6. a first spring; 7. a first wedge block; 8. a second spring; 9. a second wedge block.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: including trocar

main part

1, 1 top of trocar main part is equipped with

tail boom

2, 2 bottoms of tail boom are equipped with

circular projection

3, 1 bottom of trocar main part is equipped with needle tubing 4, needle tubing 4 runs through circular projection 3 and extends to in the

tail boom

2, 2 inside anti-reflux valves 5 that are equipped with of tail boom, anti-reflux valves 5 and needle tubing 4 fixed connection, 2 inner walls of tail boom are equipped with first spring 6 in anti-reflux valves 5 top one side, the first wedge 7 of the one end fixedly connected with of 2 inner walls of tail boom is kept away from to

first spring

6, 2 inner walls of tail boom are equipped with second spring 8 in anti-reflux valves 5 top opposite sides, the one end fixedly connected with second wedge 9 that second spring 8 is close to first wedge 7.

In this embodiment, preferably, a circular hole matched with the needle tube 4 is formed inside the circular convex column 3.

In this embodiment, it is preferable that the valve 5 is provided with a stopper for limiting the position of the needle 4.

In this embodiment, preferably, the first wedge block 7 and the second wedge block 9 are both made of aluminum material

In the present embodiment, it is preferable that the first spring 6 and the second spring 8 are made of copper material.

In this embodiment, preferably, the anti-backflow valve 5 is provided with a wear-resistant layer on the top.

The specific principle is as follows: during the use, when inserting biopsy needle or trocar noose into trocar main part 1, extrude first wedge 7 and second wedge 9, first wedge 7 moves to the direction of compressing first spring 6, second wedge 9 moves to the direction of compressing second spring 8, biopsy needle or trocar noose pass prevents valve 5 that refluences, accomplish the back, extract biopsy needle or trocar noose, first spring 6 and second spring 8 go back the normal position, drive first wedge 7 and second wedge 9 respectively and go back the normal position, form 0 atmospheric pressure, gaseous can not follow the external trocar and blood circulation that gets into, the effectual emergence of preventing pneumothorax and air embolism.

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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A percutaneous lung puncture trocar comprises a trocar main body (1) and is characterized in that a tail post (2) is arranged at the top of the trocar main body (1), the bottom of the tail post (2) is provided with a circular convex post (3), the bottom of the trocar body (1) is provided with a needle tube (4), the needle tube (4) penetrates through the circular convex column (3) and extends into the tail column (2), the tail pillar (2) is internally provided with a reverse-flow prevention valve (5), the reverse-flow prevention valve (5) is fixedly connected with the needle tube (4), a first spring (6) is arranged on one side of the inner wall of the tail post (2) on the top of the anti-backflow valve (5), one end of the first spring (6) far away from the inner wall of the tail post (2) is fixedly connected with a first wedge-shaped block (7), a second spring (8) is arranged on the other side of the inner wall of the tail post (2) on the top of the anti-reverse flow valve (5), one end of the second spring (8) close to the first wedge-shaped block (7) is fixedly connected with a second wedge-shaped block (9).

2. The percutaneous lung puncture trocar according to claim 1, wherein a round hole matched with the needle tube (4) is formed in the circular convex column (3).

3. The percutaneous lung puncture trocar according to claim 1, wherein a baffle plate for limiting the position of the needle tube (4) is arranged inside the anti-reflux valve (5).

4. The percutaneous lung puncture trocar according to claim 1, wherein the first wedge block (7) and the second wedge block (9) are both made of aluminum material.

5. The percutaneous lung puncture trocar according to claim 1, wherein the first spring (6) and the second spring (8) are both made of copper material.

6. The percutaneous lung puncture trocar according to claim 1, wherein the top of the anti-reflux valve (5) is provided with a wear-resistant layer.