Bone tissue aspiration biopsy needle core

A needle biopsy and bone tissue technology, applied in the field of biopsy needles, can solve the problems of incomplete sample acquisition and sample destruction

Inactive Publication Date: 2016-01-13
陆宁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problem that the existing bone tissue biopsy needles have incomplete sample acquisition and relatively large damage to the samples, the present invention provides a bone tissue puncture biopsy needle core

Method used

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  • Bone tissue aspiration biopsy needle core
  • Bone tissue aspiration biopsy needle core
  • Bone tissue aspiration biopsy needle core

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Embodiment Construction

[0026] Before the technical solution of the present invention is described in detail, some expressions used in the description process will be uniformly explained.

[0027] Tubular: A term used to describe the core body in this invention. The main body of the pointer core has the shape of a tube, that is, the shape of a hollow cylinder.

[0028] Piercing end: a term used to describe the core body of the bone tissue biopsy needle core of the present invention. Specifically, the end of the needle core body piercing into the bone tissue is distinguished from the other end of the needle core body provided with a handle for operation.

[0029] Self-tapping thread: This thread is set on the outer wall of the needle core main body. When screwing into the bone tissue, the tail and teeth of the screw can be used to cut out the matching female thread in a similar way as tapping, so as to penetrate into the bone tissue. .

[0030] Serrated: It describes the protruding tooth-like struc...

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Abstract

The invention provides a bone tissue aspiration biopsy needle core. The bone tissue aspiration biopsy needle core comprises a tubular needle core body, wherein self-tapping threads are arranged on the outer side wall of a piercing end of the needle core body; a zigzag convex edge is arranged at the piercing end of the needle core body and comprises a projected edge which is formed by extending a local region of a side wall of the needle core body along the direction parallel to the axis of the needle core body; the zigzag convex edge is provided with two inclined sides; and a cutting edge is arranged on the inclined side in the self-tapping thread screwing-in direction. The bone tissue aspiration biopsy needle core can be widely used for treating and diagnosing bone diseases.

Description

technical field [0001] The invention relates to a surgical instrument, in particular to a biopsy needle used for obtaining tissue samples for analysis. Background technique [0002] During orthopedic surgery, it is necessary to sample bone tissue for analysis and diagnosis. This process has two constraints: first, the sampling volume must be sufficient to meet the requirements for analysis and diagnosis; on the other hand, the sampling volume should not be too large to avoid causing unnecessary trauma and pain to patients. [0003] In order to achieve the above purpose, through continuous improvement in practice, the more popular bone tissue sampling device is a biopsy needle at present. The biopsy needle is generally a hollow tube structure, and the end that penetrates the bone tissue also cuts the tissue while penetrating. After the biopsy needle is pulled out, the cut tissue is also carried out by the biopsy needle. [0004] After the above-mentioned biopsy needle pene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B10/02A61B17/34
Inventor 陆宁
Owner 陆宁
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