CN211022797U

CN211022797U - Integrated puncture biopsy needle

Info

Publication number: CN211022797U
Application number: CN201921452612.9U
Authority: CN
Inventors: 周建明
Original assignee: Zhejiang Kangci Medical Technology Co ltd
Current assignee: Zhejiang Kangci Medical Technology Co ltd
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-07-17
Anticipated expiration: 2029-09-03

Abstract

The utility model discloses a marrow puncture biopsy needle, in particular to an integrated puncture biopsy needle. The biopsy needle comprises an outer sleeve and a puncture needle rod, and is structurally characterized in that a sleeve handle is arranged at the tail end of the outer sleeve, a central through hole of the outer sleeve penetrates through the sleeve handle, a serrated cutting edge is arranged at the front end of the outer sleeve, and a puncture hole communicated with the central through hole is formed in the wall of the outer sleeve close to the front end; the puncture needle rod consists of a needle rod and a needle rod handle, the needle rod handle is fixed at the tail end of the needle rod, and the front end of the needle rod is provided with a conical cutting edge; the length of the needle rod is greater than that of the outer sleeve, and the needle rod can move in the central through hole of the outer sleeve in a manner of clinging to the inner wall of the outer sleeve. The utility model has the advantages of simple structure, convenient operation, work efficiency are high, the sample is accurate, the sample volume is sufficient, can effectively draw and wait to examine the tissue.

Description

Integrated puncture biopsy needle

Technical Field

The utility model relates to a marrow puncture biopsy needle, in particular to an integrated puncture biopsy needle.

Background

Biopsy puncture is a technique of taking out a lesion tissue from a patient body by cutting, clipping, or puncturing, and performing pathological examination. Biopsies vary widely depending on the difficulty of obtaining tissue, but a clear histopathological diagnosis is made for the vast majority of samples examined and is considered the final clinical diagnosis.

Bone marrow puncture needles and bone marrow biopsy needles are medical instruments that are necessary in performing bone marrow aspiration biopsy procedures. The prior art, such as the biopsy needle assembly for bone puncture biopsy disclosed in chinese patent application 201010154334.6, is composed of a solid puncture needle, a hollow tube sampling needle for rotary cutting of lesion tissue, a working channel cannula for insertion of the solid puncture needle or the hollow tube sampling needle, and a through strip for taking out the biopsy tissue in the hollow tube sampling needle. When the solid puncture needle is used, the solid puncture needle is inserted into the working channel sleeve to be used together, after the cortical bone is punctured, the working channel sleeve is fixed at a puncture position, the solid puncture needle is withdrawn from the working channel sleeve, the hollow tube sampling needle is inserted into the working channel sleeve, the front end of the hollow tube sampling needle is inserted into spongy focal tissue, the handle of the hollow tube sampling needle is held to apply pressure and rotate the focal tissue, the focal tissue around the needle tube is cut in a rotating mode, the cut tissue enters the hollow tube sampling needle from the cross section opening of the needle head part, then the hollow sampling needle is pulled out, the cut tissue to be detected is taken out from the hollow tube sampling needle by the aid of the through strip, and finally the working channel sleeve is taken down from the puncture position. The four-part combined type automatic control device is composed of four parts, and the operation steps are relatively complicated, so that the operation time is increased, and the working efficiency is reduced; and the amount of the materials is small, if the operator experiences insufficient experience or the material-taking part is improper, and a tumor area is not penetrated to obtain a representative lesion tissue, an accurate conclusion is difficult to be obtained, and even an incorrect conclusion is made.

Disclosure of Invention

The utility model aims to solve the technical problem that an integral type puncture biopsy needle of waiting to examine tissue is provided to simple structure, convenient operation, work efficiency height, sample accurate, the sample volume is sufficient, can effectively draw.

The utility model provides a technical scheme that above-mentioned problem adopted is: the integrated puncture biopsy needle comprises an outer sleeve and a puncture needle rod, and is structurally characterized in that a sleeve handle is arranged at the tail end of the outer sleeve, a central through hole of the outer sleeve penetrates through the sleeve handle, a serrated cutting edge is arranged at the front end of the outer sleeve, and a puncture hole communicated with the central through hole is formed in the wall of the outer sleeve close to the front end; the puncture needle rod consists of a needle rod and a needle rod handle, the needle rod handle is fixed at the tail end of the needle rod, and the front end of the needle rod is provided with a conical cutting edge; the length of the needle rod is greater than that of the outer sleeve, and the needle rod can move in the central through hole of the outer sleeve in a manner of clinging to the inner wall of the outer sleeve.

The puncture holes are five, the central axis of the outer sleeve is symmetrically arranged, one side is two, and the other side is three.

The outer wall of the outer sleeve is provided with scale marks.

Compared with the prior art, the utility model, following beneficial effect has: the integrated puncture biopsy needle consists of an outer sleeve and a puncture needle rod, has simple, light and compact structure and strong self-supporting force, can be operated by one hand when in use, can be performed in an outpatient clinic under local anesthesia, has small damage and less bleeding to tissues due to puncture, is safer, has less chance of infection, does not influence early chemotherapy or radiotherapy, and is often operated by one person; during operation, the puncture needle rod is inserted into the central through hole of the outer sleeve to be used together, the conical cutting edge of the puncture needle rod is firstly utilized to penetrate through muscle and harder cortical bone, the puncture needle rod is withdrawn from the outer sleeve after the cortical bone is punctured, then the sleeve handle is held to apply pressure and rotate the sleeve, the cutting edge at the front end of the outer sleeve cuts the focus tissue, then the outer sleeve is pulled out, and in the pulling-out process, a part of the cut focus tissue is remained in the puncture hole and is taken out for biopsy, the operation steps are simple and convenient, the working efficiency is improved, the sampling is accurate, the sampling amount is sufficient, and the tissue to be detected can be effectively extracted; the biopsy needle can improve the success rate of needle biopsy under the guidance of CT, MRI ultrasound and fluoroscopy, the sharp edge of the outer sleeve is helpful to ensure the tissues to be intact, the conical cutting edge of the needle rod has strong visibility under the ultrasound image, the outer sleeve is not moved when cutting the tissues, the inclined plane of the conical cutting edge of the needle rod is sharp, the needle is fast, simple and convenient to insert, has small damage to organs and surrounding tissues, the puncture is fast and accurate, the periosteum and cortex lycii can be easily placed, the biopsy needle is suitable for the biopsy requirements of the bone tissues of all parts of the body, and the operation is safe, reliable, short in; the scale marks on the outer wall of the outer sleeve can ensure accurate positioning when the centrum is introduced.

Drawings

Fig. 1 is a front view of an outer sleeve according to an embodiment of the present invention.

Fig. 2 is a rear view of an outer sleeve according to an embodiment of the present invention.

Fig. 3 is an enlarged view of fig. 1 at a.

Fig. 4 is a perspective view of an outer sleeve according to an embodiment of the present invention.

Fig. 5 is a perspective view of the puncture needle rod in the embodiment of the present invention.

Fig. 6 is a schematic structural view illustrating the combined use of the outer cannula and the piercing needle shaft according to the embodiment of the present invention.

Fig. 7 is an enlarged view of fig. 6 at B.

Detailed Description

Referring to fig. 1-7, the present embodiment includes an outer cannula 1 and a piercing needle shaft 2.

The tail end of outer tube 1 is equipped with sleeve pipe handle 3, and the central through hole of outer tube 1 runs through sleeve pipe handle 3, and the front end of outer tube 1 is equipped with the cutting edge 4 of cockscomb structure, and is equipped with the puncture hole 5 that is linked together with central through hole on the pipe wall that outer tube 1 is close to the front end, and puncture hole 5 is five, and the central axis symmetrical arrangement of outer tube 1, and one side is two, and the opposite side is three. The outer wall of the outer sleeve 1 is also provided with scale marks 9 for marking the length of the outer sleeve 1 inserted into the body.

The puncture needle rod 2 consists of a needle rod 6 and a needle rod handle 7, the needle rod handle 7 is fixed at the tail end of the needle rod 6, and the front end of the needle rod 6 is provided with a conical cutting edge 8; the length of the needle bar 6 is larger than that of the outer sleeve 1, and the needle bar 6 can move in a way of clinging to the inner wall of the outer sleeve 1 in the central through hole of the outer sleeve 1.

When the biopsy needle is used, the puncture needle rod 1 is inserted into the central through hole of the outer cannula 1 and used together. Firstly, the conical cutting edge 8 of the puncture needle rod 1 is used for penetrating muscle and harder cortical bone, after the cortical bone is punctured, the puncture needle rod 1 is withdrawn from the outer sleeve 1, then the sleeve handle 3 is held to press and rotate, the cutting blade 4 at the front end of the outer sleeve 1 cuts the lesion tissue, then the outer sleeve 1 is pulled out, and during the pulling-out process, a part of the cut lesion tissue is remained in the puncture hole 5 and is taken out for biopsy.

Claims

1. The utility model provides an integral type puncture biopsy needle, includes outer tube (1) and puncture needle bar (2), characterized by: the tail end of the outer sleeve (1) is provided with a sleeve handle (3), a central through hole of the outer sleeve (1) penetrates through the sleeve handle (3), the front end of the outer sleeve (1) is provided with a serrated cutting edge (4), and a puncture hole (5) communicated with the central through hole is formed in the pipe wall of the outer sleeve (1) close to the front end; the puncture needle rod (2) consists of a needle rod (6) and a needle rod handle (7), the needle rod handle (7) is fixed at the tail end of the needle rod (6), and the front end of the needle rod (6) is provided with a tapered cutting edge (8); the length of the needle bar (6) is larger than that of the outer sleeve (1), and the needle bar (6) can move in a way of clinging to the inner wall of the outer sleeve (1) in the central through hole of the outer sleeve (1).

2. The integrated needle biopsy needle according to claim 1, wherein: the number of the puncture holes (5) is five, the puncture holes are symmetrically arranged on the central axis of the outer casing pipe (1), one side is two, and the other side is three.

3. The integrated needle biopsy needle according to claim 1, wherein: the outer wall of the outer sleeve (1) is provided with scale marks (9).