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Novel vertebral bone tissue biopsy instrument

A body bone and tissue technology, applied in the field of medical devices, can solve the problems of bone tissue retention and inability to obtain bone tissue pathological examination, and achieve the effect of simple operation and convenient use

Pending Publication Date: 2021-05-07
NINGBO HICREN BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to clinical feedback, it is difficult for existing instruments to retain bone tissue in the needle tube when withdrawing during operation, and there is a high probability that sufficient bone tissue cannot be obtained for pathological examination

Method used

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  • Novel vertebral bone tissue biopsy instrument
  • Novel vertebral bone tissue biopsy instrument
  • Novel vertebral bone tissue biopsy instrument

Examples

Experimental program
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Effect test

Embodiment

[0023] Such as Figure 1-2 As shown, a novel vertebral bone tissue biopsy instrument includes a cutting assembly 1, an adjusting assembly 2 and an outer tube assembly 3 that are sheathed sequentially from the inside to the outside, and the cutting assembly 1 includes a cutting member 11 and a handle 12, The proximal end of the cutting member 11 is fixedly connected to the handle 12, the adjustment assembly 2 includes an adjustment tube 21 and an adjustment handle 22, and the proximal end of the adjustment tube 21 is fixedly connected to the adjustment tube handle 22, by operating the Adjusting tube handle 22. The adjusting tube 21 can slide axially along the cutting part 11 to realize recovery and release of the distal part 111 of the cutting part. The outer tube assembly 3 includes an outer tube 31 and an outer tube handle 32. The proximal end of the outer tube 31 is fixedly connected to the outer tube handle 32 , and the outer tube 31 can move axially relative to the adjustm...

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PUM

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Abstract

The invention relates to a novel vertebral bone tissue biopsy instrument which comprises a cutting assembly, an adjusting assembly and an outer tube assembly which are sequentially arranged from inside to outside in a sleeving mode, wherein the cutting assembly comprises a cutting piece and a handle, the near end of the cutting piece is fixedly connected with the handle, the adjusting assembly comprises an adjusting tube and an adjusting handle, the near end of the adjusting tube is fixedly connected with the adjusting tube handle, the adjusting tube can slide in the axial direction of the cutting piece by operating the adjusting tube handle to achieve recovery and release of the far end part of the cutting piece, the outer tube assembly comprises an outer tube and an outer tube handle, the near end of the outer tube is fixedly connected with the outer tube handle, and the outer tube can move axially with the adjusting tube and the cutting piece by operating the outer tube handle.

Description

technical field [0001] The invention belongs to the field of medical instruments and relates to a biopsy instrument for vertebral bone tissue. Background technique [0002] The main indications for percutaneous vertebroplasty are osteoporotic compression fractures and vertebral body tumors, among which vertebral body tumors are the earliest objects of percutaneous vertebroplasty. Needle biopsy. At present, the most commonly used biopsy instruments on the market are composed of a needle core part and a needle tube part, which is mainly inserted into the vertebral body through the needle tube part, and the bone tissue in the vertebral body enters the needle tube through rotation or a suction device to realize the extraction of diseased tissue . However, according to clinical feedback, it is difficult for existing instruments to retain bone tissue in the needle tube when withdrawing during operation, and there is a high probability that sufficient bone tissue cannot be obtain...

Claims

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Application Information

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IPC IPC(8): A61B10/02
CPCA61B10/0266A61B10/025
Inventor 周英杰胡冬胡旭军张鹏云
Owner NINGBO HICREN BIOTECH
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