CN214231393U

CN214231393U - Biopsy needle tip structure

Info

Publication number: CN214231393U
Application number: CN202022991450.5U
Authority: CN
Inventors: 张维尧; 章方美; 吴小吾; 张伟
Original assignee: Zhejiang Ini Medical Devices Co ltd
Current assignee: Zhejiang Ini Medical Devices Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-09-21
Anticipated expiration: 2030-12-14

Abstract

The utility model relates to the technical field of medical equipment, specifically be a biopsy needle point structure, the breach that is used for placing the live body tissue is offered to one section of syringe needle of solid needle, one side that hollow needle tubing is close to solid needle syringe needle is the inclined plane structure, and the blade of inclined plane structure is interior direction sharpening, plays the effect of cutting the live body tissue with breach lateral part inclined plane cooperation. During the sample, insert hollow needle tube and solid needle simultaneously and treat the sample position, outwards release solid needle, make the breach spill hollow needle tube, at this moment, the biopsy department that needs the sample is pressed close to solid needle, then promote hollow needle tube and remove to breach department, hollow needle tube inclined plane blade cutting human tissue, the breach gets into in the hollow needle tube, the biopsy of cutting stops in the breach, then outwards extract hollow needle tube and solid needle simultaneously, alright take out the biopsy, the operation is thus simple, it is quick harmless, can not tear the human tissue, and the needle has very strong practicality.

Description

Biopsy needle tip structure

Technical Field

The utility model relates to the technical field of medical equipment, specifically a biopsy needle point structure.

Background

Biopsy is also called surgical pathology examination, and is called external examination; this refers to a technique for taking out a diseased tissue from a patient by incision, forceps, puncture, or the like, and performing pathological examination, as required for diagnosis and treatment. This is the most important part of the diagnosis of pathology, and a clear histopathological diagnosis can be made for the vast majority of examined cases, as a clinical final diagnosis. The use principle of the conventional biopsy needle: the biopsy needle is arranged on a biopsy gun, the biopsy needle is inserted into a preset organ position under the guidance of ultrasonic development, the tissue cutting size is set on the biopsy gun, a wrench is started, an inner needle (namely, a cutting needle) is driven by a spring to rapidly advance and retreat, so that living tissues are cut off and stored in a storage groove, tearing injury is easy to generate, and therefore, a needle point structure of the biopsy needle is provided.

Disclosure of Invention

An object of the utility model is to provide a biopsy needle point structure 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:

the utility model provides a biopsy needle point structure, includes hollow needle tubing, it has solid needle to peg graft in the hollow needle tubing, the breach that is used for placing the live body tissue is offered to one section of syringe needle of solid needle, the left and right sides of breach is the symmetry formula and leans out the setting, one side that hollow needle tubing is close to solid needle syringe needle is the inclined plane structure, and the blade of inclined plane structure is interior direction sharpening, plays the effect of cutting the live body tissue with the cooperation of breach lateral part inclined plane.

Furthermore, the surface of the outer side wall of the hollow needle tube, which is close to one section of the solid needle head, is of a ring-shaped frosted surface structure.

Furthermore, the hollow needle tube is provided with scale marks convenient for observing the insertion depth.

Further, the inner diameter of the hollow needle tube is the same as the diameter of the solid needle.

Furthermore, the outward end of the hollow needle tube is in a horn-shaped structure which is convenient for inserting a solid needle.

Furthermore, one section of the tail part of the solid needle is arranged in a flat structure, and the width of the flat structure is larger than the inner diameter of the hollow needle tube.

Compared with the prior art, the beneficial effects of the utility model are that: this biopsy needle point structure, through set up the frosting at hollow needle tube surface, play hollow needle tube business turn over human tissue frictional resistance's effect on the one hand, on the other hand, be developing effect under X-ray or B ultrasonic, play the effect of hollow needle tube accurate puncture in the human body, during the sample, insert hollow needle tube and solid needle simultaneously and wait to sample the position, outwards release solid needle, make the breach spill hollow needle tube, at this moment, the living body tissue department that needs the sample is pressed close to solid needle, then promote hollow needle tube and remove to breach department, hollow needle tube inclined plane blade cuts human tissue, the breach gets into in the hollow needle tube, the living body tissue of cutting stops in the breach, then simultaneously outside alright extract hollow needle tube and solid needle, take out the living body tissue, and is easy to operate, and is quick harmless, can not tear human tissue, and has very strong practicality.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic view of the hollow needle cannula tip of the present invention.

In the figure: the needle comprises a hollow needle tube 1, an inner direction sharpening blade 11, a solid needle 2 and a notch 3.

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. 1-2, the present invention provides a technical solution:

the utility model provides a biopsy needle point structure, including hollow needle tubing 1, be provided with the scale marking of being convenient for observe the depth of insertion on hollow needle tubing 1, it has solid needle 2 to peg graft in hollow needle tubing 1, the internal diameter of hollow needle tubing 1 is the same with the diameter size of solid needle 2, hollow needle tubing 1 outside one end is the loudspeaker column structure that makes things convenient for solid needle 2 to insert, breach 3 that is used for placing the live body tissue is offered to solid needle 2's syringe needle one section, the left and right sides of breach 3 is the symmetry formula and leans out the setting, one side that hollow needle tubing 1 is close to solid needle 2 syringe needles is the inclined plane structure, and the blade of inclined plane structure is interior direction sharpening 11, play the effect of cutting live body tissue with 3 lateral part inclined plane cooperations of breach, the nothing pulls the phenomenon, can not produce and tear the injury.

The surface of the outer side wall of the hollow needle tube 1, which is close to one section of the needle head of the solid needle 2, is of a ring of annular frosted surface structure, on one hand, the hollow needle tube 1 plays a role in friction resistance of the human tissues when entering and exiting, on the other hand, the hollow needle tube 1 plays a role in accurate puncture in the human body under the development of X-ray or B-ultrasound.

In addition, one section of the tail part of the solid needle 2 is arranged in a flat structure, and the width of the flat structure is larger than the inner diameter of the hollow needle tube 1, so that the solid needle 2 is prevented from sliding out of the hollow needle tube 1, and a limiting effect is achieved.

The biopsy needle tip structure has the advantages that the frosted surface is arranged on the outer surface of the hollow needle tube 1, so that the function of friction resistance of the hollow needle tube 1 to enter and exit human tissues is achieved on one hand, the hollow needle tube 1 can accurately puncture in a human body under the development effect of X-ray or B-ultrasound on the other hand, when sampling is conducted, the hollow needle tube 1 and the solid needle 2 are simultaneously inserted into a part to be sampled, the solid needle 2 is pushed outwards, a gap 3 is made to leak out of the hollow needle tube 1, at the moment, the solid needle 2 is close to a living tissue to be sampled, then the hollow needle tube 1 is pushed to move towards the gap 3, the inclined surface cutting edge of the hollow needle tube 1 cuts the human tissues, the gap 3 enters the hollow needle tube 1, the cut living tissues stay in the gap 3, then the hollow needle tube 1 and the solid needle 2 are simultaneously pulled out, the living tissues can be taken out, the operation is simple, the needle tip structure is rapid and nondestructive, and the human tissues cannot be torn, has strong practicability.

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

1. A biopsy needle tip structure, includes hollow needle tubing (1), its characterized in that: hollow needle tubing (1) interpolation has solid needle (2), breach (3) that are used for placing the live body tissue are offered to the syringe needle one end of solid needle (2), the left and right sides of breach (3) is the symmetry formula and leans out the setting, one side that hollow needle tubing (1) is close to solid needle (2) syringe needle is the inclined plane structure, and the blade of inclined plane structure is interior direction sharpening (11), plays the effect of cutting the live body tissue with breach (3) lateral part inclined plane cooperation.

2. A biopsy needle tip structure according to claim 1, wherein: the outer side wall surface of one end of the hollow needle tube (1) close to the needle head of the solid needle (2) is of a ring-shaped frosted surface structure.

3. A biopsy needle tip structure according to claim 1, wherein: the hollow needle tube (1) is provided with scale marks convenient for observing the insertion depth.

4. A biopsy needle tip structure according to claim 1, wherein: the inner diameter of the hollow needle tube (1) is the same as the diameter of the solid needle (2).

5. A biopsy needle tip structure according to claim 1, wherein: the outward end of the hollow needle tube (1) is of a horn-shaped structure which is convenient for the solid needle (2) to be inserted.

6. A biopsy needle tip structure according to claim 1, wherein: one end of the tail part of the solid needle (2) is arranged in a flat structure, and the width of the flat structure is larger than the inner diameter of the hollow needle tube (1).