CN209808410U

CN209808410U - Tumor puncture needle

Info

Publication number: CN209808410U
Application number: CN201822279787.6U
Authority: CN
Inventors: 李博奥; 赵建峰; 李记彬
Original assignee: Liaoning Cancer Hospital and Institute
Current assignee: Liaoning Cancer Hospital and Institute
Priority date: 2018-12-29
Filing date: 2018-12-29
Publication date: 2019-12-20
Anticipated expiration: 2028-12-29

Abstract

The utility model discloses a tumor puncture needle, including the extraction tube, the upper end fixed surface of extraction tube is connected with the handle, the lateral wall lower extreme fixed mounting of extraction tube has the stopping cover, the inside fixed mounting of extraction tube has piston rod and piston, and the piston is located the lower extreme of piston rod, the upper end fixedly connected with of piston rod overlaps the cap, the upper end of cover cap has been seted up the syringe needle and has been abandoned the mouth, the lower extreme fixed surface of extraction tube installs puncture needle tube, puncture needle tube's lower extreme fixed surface is connected with puncture needle head. A tumour pjncture needle, be equipped with and block the cover, rotate head and syringe needle and abandon the mouth, can support skin, exert opposite power to the pjncture needle when avoiding pulling the piston and make the pjncture needle insert too deeply to can avoid biological tissue to block up the pinhole, can also hold the syringe needle when abandoning, avoid the accidental injury, bring better use prospect.

Description

Tumor puncture needle

Technical Field

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

Background

A tumor puncture needle is an auxiliary tool for cancer diagnosis, generally doctors often choose to puncture when determining the tumor property of patients, cell fluid and tissues in tumors are extracted through puncturing, and then the cell fluid and the tissues are analyzed, so that the pathological examination accuracy is high, the tumor puncture needle consists of a needle head and a piston which are connected with a needle cylinder, when in use, the piston is pulled to suck tissue fluid, and the tumor puncture needle is simple in structure and convenient to operate; the existing tumor puncture needle has certain disadvantages when in use, firstly, when the puncture needle head is punctured into tumor tissue and a piston is pulled to suck the tumor tissue in the use process, the needle head can be punctured by the puncturing force, on one hand, the needle head is continuously punctured to increase the pain of a patient, on the other hand, the needle head is continuously punctured to possibly puncture the tumor tissue to cause the extraction failure, and has certain inconvenience, secondly, when in use, the needle hole of the needle head inserted into the tumor is often blocked by the surrounding tumor tissue to influence the tissue fluid extraction effect of the tumor puncture needle, and has certain adverse effect, furthermore, when in use, the puncture needle is generally a disposable article, the needle head is randomly discarded after use, and can accidentally injure treating personnel, and has certain disadvantages and brings certain adverse effect to the use process of people, therefore, we propose a tumor puncture needle.

SUMMERY OF THE UTILITY MODEL

The main object of the utility model is to provide a tumor puncture needle, which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a tumor puncture needle, includes the extraction tube, the upper end surface fixedly connected with handle of extraction tube, the lateral wall lower extreme fixed mounting of extraction tube has the stopping cover, the inside fixed mounting of extraction tube has piston rod and piston, and the piston is located the lower extreme of piston rod, the upper end fixedly connected with of piston rod overlaps the cap, the upper end of covering the cap has been seted up the syringe needle and has been abandoned the mouth, the lower extreme surface fixedly mounted of extraction tube has puncture needle pipe, puncture needle pipe's lower extreme surface fixedly connected with puncture needle head, fixed mounting has the rotation head between puncture needle pipe and the puncture needle head, the lateral wall fixedly connected with pull wire of rotation head.

The blocking sleeve can be propped against the surface of the skin when the piston rod is drawn, so that the puncture needle head is prevented from further puncturing.

The arranged piston can produce negative pressure, so that the tumor tissue is pressed into the puncture needle tube by the pressure in the body and is further lifted into the puncture needle head.

The rotating head that sets up, the lateral wall of pull wire winding rotating head, when drawing tumour tissue, piston rod pulling piston rebound, pulling pull wire further makes rotating head rotate when piston rebound, and rotating head's lateral wall still is provided with the arch, can play the effect of mediation, avoids blockking up, and simple structure, can not increase substantially the cost.

Preferably, the inside abandonment needle chamber of seting up in the upper end of piston rod, the mouth is abandoned for connecting the through-hole in abandonment needle chamber to the syringe needle.

Preferably, a thread is arranged between the extraction pipe and the blocking sleeve, the lower end of the outer side wall of the extraction pipe is fixedly connected with the inner side wall of the blocking sleeve through the thread, and a rubber sleeve is fixedly mounted at the lower end of the blocking sleeve.

Preferably, the lower end of the traction wire is wound on the outer side wall of the rotating head, and the upper end of the traction wire is fixedly connected with the outer surface of the lower end of the piston.

Preferably, rotating shafts are fixedly mounted at two ends of the rotating head, and grooves are formed in the inner side wall of the lower end of the puncture needle tube corresponding to the rotating shafts.

Preferably, the outer side wall of the rotating head is provided with a plurality of bulges, and the plurality of bulges are uniformly distributed on the outer side wall of the rotating head.

Compared with the prior art, the utility model discloses following beneficial effect has: when the tumor puncture needle is used, after the tumor position is determined, the puncture needle head is punctured, after the puncture needle head is determined to be located in tumor tissue, the blocking sleeve is rotated to enable the blocking sleeve to be close to the skin, when the blocking sleeve is abutted against the skin, one hand holds the blocking sleeve, the other hand pulls the piston rod through the sleeve cap to extract the tumor tissue, the situation that the needle head is accidentally penetrated by a downward force applied to the extraction tube during extraction is avoided, the pain of a patient is relieved, the possibility of extraction failure is reduced, and the tumor puncture needle is more favorable for use; through the arranged rotating head, the traction wire is wound on the outer side wall of the rotating head, when tumor tissues are extracted, the piston rod pulls the piston to move upwards, when the piston moves upwards, the traction wire is pulled to further enable the rotating head to rotate, and the outer side wall of the rotating head is also provided with the bulge, so that the effect of dredging can be achieved, the blockage is avoided, the structure is simple, and the cost cannot be greatly increased; the setting that the mouth was abandoned to the syringe needle, after the completion draws the operation, the rupture with take off puncture needle tubing, directly abandon the mouth with puncture needle tubing through the syringe needle and throw into the inner chamber of piston rod, avoid the pillow to stab the treatment personnel, make the utility model discloses safer, and convenient operation, the effect of use is better for traditional mode.

Drawings

Fig. 1 is a schematic view of the whole structure of the tumor puncture needle of the present invention.

Fig. 2 is a schematic view of a partial structure (the barrier-removing sleeve 6) in fig. 1 of the tumor puncture needle of the present invention.

Fig. 3 is a schematic structural view of the puncture needle tube 7 in fig. 1 of the tumor puncture needle of the present invention.

Fig. 4 is a schematic view of the tumor puncture needle of the present invention, showing the structure of the puncture needle tube 7 in fig. 1 from the bottom.

In the figure: 1. the needle head is discarded; 2. sleeving a cap; 3. a handle; 4. a piston rod; 5. an extraction tube; 6. a blocking sleeve; 7. puncturing a needle tube; 8. a puncture needle head; 9. a piston; 10. a pull wire; 11. the head is rotated.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1 to 4, a tumor puncture needle comprises an extraction tube 5, a handle 3 is fixedly connected to the outer surface of the upper end of the extraction tube 5, a stopping sleeve 6 is fixedly mounted at the lower end of the outer side wall of the extraction tube 5, a piston rod 4 and a piston 9 are fixedly mounted inside the extraction tube 5, the piston 9 is located at the lower end of the piston rod 4, a sleeve cap 2 is fixedly connected to the upper end of the piston rod 4, a needle discarding port 1 is formed in the upper end of the sleeve cap 2, a puncture needle tube 7 is fixedly mounted on the outer surface of the lower end of the extraction tube 5, a puncture needle 8 is fixedly connected to the outer surface of the lower end of the puncture needle tube 7, a rotating head 11 is fixedly mounted between the puncture needle tube 7.

The interior of the upper end of the piston rod 4 is arranged in the waste needle cavity, and the needle head discarding port 1 is a through hole connected with the waste needle cavity, so that the used needle head can be discarded conveniently, and the accidental injury of treating personnel can be avoided; a thread is arranged between the extraction tube 5 and the stopping sleeve 6, the lower end of the outer side wall of the extraction tube 5 is fixedly connected with the inner side wall of the stopping sleeve 6 through the thread, and a rubber sleeve is fixedly arranged at the lower end of the stopping sleeve 6 and can be used for resisting the skin and avoiding excessive penetration; the lower end of the traction wire 10 is wound on the outer side wall of the rotating head 11, the upper end of the traction wire 10 is fixedly connected with the outer surface of the lower end of the piston 9, and the rotating head 11 is rotated by the traction of the traction wire 10 to play a role in dredging; the two ends of the rotating head 11 are fixedly provided with rotating shafts, the inner side wall of the lower end of the puncture needle tube 7 is provided with a groove corresponding to the position of the rotating shaft, the rotating head 11 can rotate, and the structure is simple; the lateral wall of the rotating head 11 is provided with a plurality of bulges, and the plurality of bulges are uniformly distributed on the lateral wall of the rotating head 11.

It should be noted that, the utility model relates to a tumor puncture needle, when using, take off the needle cover, after confirming the tumor position earlier, pierce the puncture needle 8, confirm that the puncture needle 8 is located the tumor tissue, rotate the stop sleeve 6, make the stop sleeve 6 press close to the skin, after the stop sleeve 6 supported the skin, one held the stop sleeve 6, another hand drew the piston rod 4 through the cap 2 and drawed the tumor tissue, the extraction tube 5 received the downward force and made the needle accidentally go deep when avoiding drawing, alleviate the patient's misery, reduce the possibility of drawing failure, be more favorable to using the lateral wall of pull wire 10 winding rotating head 11, when drawing the tumor tissue, piston rod 4 pulled piston 9 upwards moved, pull wire 10 further to make rotating head 11 rotate when piston 9 upwards moved, the lateral wall of rotating head 11 still is provided with the arch, can play the effect of mediation, avoid blockking up, and simple structure, can not increase substantially the cost after the completion draws the operation, the rupture with take off puncture needle tubing 7, directly abandon mouthful 1 through the syringe needle with puncture needle tubing 7 and throw into the inner chamber of piston rod 4, avoid the pillow to stab the treatment personnel, make the utility model discloses safer, it is comparatively practical.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A tumor puncture needle, comprising an extraction tube (5), characterized in that: the utility model discloses a syringe needle, including extraction tube (5), lateral wall lower extreme fixedly mounted have the stopping cover (6), the inside fixed mounting of extraction tube (5) has piston rod (4) and piston (9), and piston (9) are located the lower extreme of piston rod (4), the upper end fixedly connected with sleeve cap (2) of piston rod (4), the upper end of sleeve cap (2) has been seted up the syringe needle and has been abandoned mouthful (1), the lower extreme fixed surface of extraction tube (5) installs puncture needle tubing (7), the lower extreme fixed surface of puncture needle tubing (7) is connected with puncture needle head (8), fixed mounting has between puncture needle tubing (7) and puncture needle head (8) rotates head (11), the lateral wall fixedly connected with pull wire (10) of rotating head (11).

2. A tumor puncture needle according to claim 1, characterized in that: the inside abandonment needle chamber of seting up in the upper end of piston rod (4), mouth (1) is abandoned for the through-hole of connecting the abandonment needle chamber to the syringe needle.

3. A tumor puncture needle according to claim 1, characterized in that: the extraction tube is characterized in that a thread is formed between the extraction tube (5) and the blocking sleeve (6), the lower end of the outer side wall of the extraction tube (5) is fixedly connected with the inner side wall of the blocking sleeve (6) through the thread, and a rubber sleeve is fixedly arranged at the lower end of the blocking sleeve (6).

4. A tumor puncture needle according to claim 1, characterized in that: the lower end of the traction wire (10) is wound on the outer side wall of the rotating head (11), and the upper end of the traction wire (10) is fixedly connected with the outer surface of the lower end of the piston (9).

5. A tumor puncture needle according to claim 1, characterized in that: the two ends of the rotating head (11) are fixedly provided with rotating shafts, and the inner side wall of the lower end of the puncture needle tube (7) is provided with a groove corresponding to the rotating shafts.

6. A tumor puncture needle according to claim 1, characterized in that: the outer side wall of the rotating head (11) is provided with a plurality of bulges, and the plurality of bulges are uniformly distributed on the outer side wall of the rotating head (11).