CN218684628U

CN218684628U - Hard puncture needle

Info

Publication number: CN218684628U
Application number: CN202222435757.6U
Authority: CN
Inventors: 牛中喜; 闫睿; 岳泓旭; 林红兰
Original assignee: Third Medical Center of PLA General Hospital
Current assignee: Third Medical Center of PLA General Hospital
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2023-03-24
Anticipated expiration: 2032-09-13

Abstract

The utility model relates to the technical field of medical equipment, a stereoplasm pjncture needle is disclosed, including the drainage tube, the inside of drainage tube is provided with the pjncture needle, the outside of drainage tube is provided with the casing seat, the one end outside of pjncture needle is provided with the lag, the position that the inside of drainage tube is close to the recess is provided with the valve. The utility model discloses a pjncture needle is located the drainage tube, can play and pierce through skin muscle, the effect of guide drainage tube entering thorax, impress the anaesthetic into the pjncture needle through the syringe, can play the anesthesia effect, alleviate the painful sense of puncture, the drainage tube tail end is two-chamber opening, an opening is the direct link way of pjncture needle inlet, another opening is the check valve opening, through connecting the drainage bottle, carry out the one-way drainage of tension pneumothorax, utilize the negative pressure principle, blood that will gather, tissue liquid and other liquid are guided by the drainage tube in the drainage bottle, prevent that liquid siltation from leading to the postoperative infection.

Description

Hard puncture needle

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a hard puncture needle.

Background

Hard piercing (typically steel) needles have limitations and drawbacks of their use. Firstly, after the lung is re-expanded, the hard puncture needle may cause secondary lung or blood vessel injury; secondly, although the simple one-way valve can be made of rubber gloves or cloth, the one-way tightness is poor, the possibility of thoracic cavity infection can be caused, and in special cases, the one-way valve device is prepared on site, so that time is greatly spent, and the treatment speed and efficiency are greatly delayed. It is therefore of great importance to design a suitable rigid puncture needle.

The Chinese patent discloses a puncture needle (with an authorization publication number of CN 209884279U) for central venous catheterization, and the patent technology aims at the problems that the conventional puncture needle is easy to cause blood backflow, a hard puncture needle structure is easy to cause difficulty in guidewire placement, and the risk of puncture complications such as local hematoma is obviously increased. The utility model is provided with an anti-reflux valve on the inner wall of the puncture needle cannula seat. A cross-shaped linear slit is left in the middle of the valve. The structure can solve the problems of blood backflow and potential air embolism when the central vein is punctured and the guide wire is fed; meanwhile, the one-time success rate of guide wire feeding can be greatly improved by placing the trocar, and puncture complications are reduced, but the trocar has no anesthesia function and can not relieve the pain of a patient during puncture during treatment, so that a hard puncture needle is provided by the technical personnel in the field to solve the problems in the background technology.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a stereoplasm pjncture needle to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

stereoplasm pjncture needle, including the drainage tube, the inside of drainage tube is provided with the pjncture needle, the outside of drainage tube is provided with the casing seat, the one end outside of pjncture needle is provided with the lag, and the other end of pjncture needle is connected with the casing seat, the inside position of being close to the casing seat of one end of drainage tube is provided with the recess, the inside position of being close to the recess of drainage tube is provided with the valve, one side embedding of casing seat is provided with the hard tube, the position that the casing seat was kept away from to the one end of hard tube is provided with the check valve.

As a further aspect of the present invention: the puncture needle is of a structure made of hard stainless steel materials, and the interior of the puncture needle is of a hollow structure.

As a further aspect of the present invention: the one end of drainage tube is close to being provided with the pipe of pigtail form of lag, be provided with between drainage tube and the casing seat and expand the skin protective sheath, a plurality of side openings have been seted up jointly in the position that the one end of drainage tube and skin protective sheath is close to the lag.

As the utility model discloses further scheme again: the needle tube seat is internally provided with a tail plug which is a component made of polyurethane, the needle tube seat can be internally provided with an injector, and the interior of the needle tube seat can be matched with the injector.

As a further aspect of the present invention: the valve is of a circular structure, and the middle of the valve is provided with a cross-shaped linear slit.

As a further aspect of the present invention: one end of the one-way valve is provided with an opening, and the opening is connected with a drainage bottle through a catheter.

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

1. the puncture needle is arranged in the drainage tube, can play a role in penetrating skin muscles and guiding the drainage tube to enter the thoracic cavity, is connected with the syringe and the needle tube seat, and arranges anesthetic inside the syringe, so that the anesthetic is pressed into the puncture needle through the syringe, thereby playing an anesthetic role and relieving puncture pain.

2. The tail end of the drainage tube is a double-cavity opening, one opening is a direct connection passage for inserting the puncture needle, the valve is immediately closed after the puncture needle is pulled out, the other opening is a one-way valve opening, tension pneumothorax one-way drainage is carried out by connecting a drainage bottle, accumulated blood, tissue fluid and other liquid are guided into the drainage bottle by the drainage tube by utilizing the negative pressure principle, and postoperative infection caused by liquid deposition is prevented.

Drawings

Fig. 1 is a schematic structural view of a hard puncture needle;

FIG. 2 is a schematic view showing the structure of a needle holder in a hard puncture needle;

FIG. 3 is a schematic view of the valve structure in the hard puncture needle;

fig. 4 is a structural schematic diagram of a one-way valve in the hard puncture needle.

In the figure: 1. a drainage tube; 2. puncturing needle; 3. a cannula holder; 4. a one-way valve; 5. a needle tube base; 6. a tail plug; 7. a groove; 8. a valve; 9. a side hole; 10. pigtail-shaped catheters; 11. a skin expanding protective sleeve; 12. a protective sleeve; 13. a hard tube; 14. an injector; 15. a drainage bottle; 16. and (4) slotting in a cross-shaped linear manner.

Detailed Description

Please refer to fig. 1-4, in the embodiment of the present invention, the hard puncture needle, including drainage tube 1, the inside of drainage tube 1 is provided with puncture needle 2, the outside of drainage tube 1 is provided with casing seat 3, the one end outside of puncture needle 2 is provided with lag 12, and the other end of puncture needle 2 is connected with needle tube seat 5, the inside position that is close to needle tube seat 5 of one end of drainage tube 1 is provided with recess 7, the inside position that is close to recess 7 of drainage tube 1 is provided with valve 8, one side embedding of casing seat 3 is provided with hard tube 13, the position that casing seat 3 was kept away from to the one end of hard tube 13 is provided with check valve 4.

In fig. 1, the puncture needle 2 is made of hard stainless steel, and the inside of the puncture needle 2 is a hollow structure, one end of the drainage tube 1 is close to the catheter 10 which is provided with a pigtail shape and is provided with a protective sleeve 12, the catheter 10 which is made of the pigtail shape is soft, the catheter is made of polyurethane, the wall of a bile duct is not damaged, and the drainage tube 1 is prevented from slipping off, a skin expanding protective sleeve 11 is arranged between the drainage tube 1 and the cannula base 3, when the skin is expanded by using an expander, the skin expanding protective sleeve 11 plays a role in protection, the skin expanding protective sleeve 11 is a C-shaped tube, after the puncture needle is pulled out, the drainage tube 1 can be taken out from a C-shaped notch, and a plurality of side holes 9 are jointly formed at the position where one end of the drainage tube 1 and the skin expanding protective sleeve 11 are close to the protective sleeve 12.

In fig. 2, the needle tube base 5 is provided with the tail plug 6, the tail plug 6 is a polyurethane member, the needle tube base 5 may be further provided with the syringe 14, the needle tube base 5 may be fitted with the syringe 14, the syringe 14 may be provided with the anesthetic, and the anesthetic may be pressed into the puncture needle 2 through the syringe 14, so that an anesthetic effect may be exerted during operation, and a puncture pain may be relieved.

In fig. 3, the valve 8 is a circular structure, the cross-shaped linear slit 16 is formed in the middle of the valve 8, and the risk of blood backflow and air embolism can be greatly reduced due to the sealing effect of the valve 8.

In fig. 4, one end of the one-way valve 4 is provided with an opening, the opening is connected with a drainage bottle 15 through a catheter, and accumulated blood, tissue fluid and other liquids are guided into the drainage bottle 15 through the one-way valve 4 by utilizing the negative pressure suction principle.

The utility model discloses a theory of operation:

when the hard puncture needle is used, the drainage tube 1 adopts a catheter 10 with the front section capable of being bent and coiled into a pigtail shape, the current general central venous thoracic drainage tube is simulated, a side hole 9 is designed on the front section to ensure smooth drainage, one end of the drainage tube 1 is designed into a double-cavity opening, the opening at one end is a direct connection passage of the needle insertion of the puncture needle 2, the puncture needle 2 passes through the center of a slit of a valve 8, the puncture needle 2 is firstly used for puncture, the needle insertion is stopped when blood return is seen, a tail plug 6 is taken down, a syringe 14 is connected with a needle tube seat 5, anesthetic is arranged in the syringe 14, the hard puncture needle can play a role of anesthesia when in operation, the puncture pain feeling is relieved, after the puncture needle 2 is pulled out, the valve 8 is immediately closed, the other opening is a one-way valve 4, the other opening is connected with a drainage bottle 15 for one-way drainage of the tension pneumothorax, and the accumulated blood, tissue fluid and other fluid are guided into the drainage bottle 15 by the one-way valve 4 by utilizing the negative pressure suction principle, so as to prevent the postoperative infection caused by fluid deposition.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Stereoplasm pjncture needle, including drainage tube (1), the inside of drainage tube (1) is provided with pjncture needle (2), the outside of drainage tube (1) is provided with casing seat (3), its characterized in that, the one end outside of pjncture needle (2) is provided with lag (12), and the other end of pjncture needle (2) is connected with needle tube seat (5), the inside position of being close to needle tube seat (5) of one end of drainage tube (1) is provided with recess (7), the inside position of being close to recess (7) of drainage tube (1) is provided with valve (8), one side embedding of casing seat (3) is provided with hard tube (13), the position that casing seat (3) was kept away from to the one end of hard tube (13) is provided with check valve (4).

2. The hard puncture needle according to claim 1, wherein the puncture needle (2) has a structure of hard stainless steel, and the inside of the puncture needle (2) has a hollow structure.

3. The hard puncture needle according to claim 1, wherein one end of the drainage tube (1) is close to a catheter (10) with a pig tail shape arranged on a protective sleeve (12), a skin expanding protective sleeve (11) is arranged between the drainage tube (1) and the sleeve seat (3), and a plurality of side holes (9) are jointly arranged at the positions, close to the protective sleeve (12), of one ends of the drainage tube (1) and the skin expanding protective sleeve (11).

4. The hard puncture needle according to claim 1, characterized in that the needle holder (5) is internally provided with a tail plug (6), the tail plug (6) is made of polyurethane, the needle holder (5) is internally provided with a syringe (14), and the needle holder (5) is internally matched with the syringe (14).

5. The hard puncture needle according to claim 1, characterized in that the valve (8) is of a circular structure, and a cross-shaped linear slit (16) is arranged in the middle of the valve (8).

6. A rigid puncture needle according to claim 1, characterized in that one end of the one-way valve (4) is provided with an opening to which a drainage bottle (15) is connected via a catheter.