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Rotary-cutting type biopsy needle

A biopsy needle and rotary cutting technology, which is applied in the field of rotary cutting biopsy needles, can solve the problems of patient trauma, unfavorable promotion and use, etc., and achieves the effects of convenient operation, strong practicability, and convenient disassembly and assembly.

Pending Publication Date: 2018-09-28
黄月亮
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, biopsy samples are mostly obtained through invasive surgical procedures, which can easily cause greater trauma to patients and is not conducive to popularization and use.

Method used

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  • Rotary-cutting type biopsy needle
  • Rotary-cutting type biopsy needle
  • Rotary-cutting type biopsy needle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Such as Figure 1-4 As shown, a rotary cutting biopsy needle comprises a syringe 10, an outer needle 20 and an inner needle 30, the syringe 10 is provided with a back cover 11, a push rod 12 and a rubber plug 13, and the push rod 12 One end is connected to the rubber plug 13, the rear cover 11 is provided with a spring positioning groove 14, one end of the return spring 15 is pressed against the spring positioning groove 14, and the other end is pressed against the push rod 12, so that the rubber plug 13 always has a resistance Towards the front end of the syringe 10, guide grooves 16 are provided on both sides of the syringe 10, and ring handles 17 are provided on both sides of the push rod 12 to facilitate the movement of the push rod 12. The ring handle 17 passes through the The guide groove 16 protrudes outwards, the rear end of the inner needle 30 is provided with a connecting piece 31, and one end of the connecting piece 31 is provided with a first connecting colu...

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Abstract

The invention discloses a rotary-cutting type biopsy needle, which comprises a needle tube, an external sleeve needle and an inner needle. The rear end of the inner needle is provided with a connection part, the connection part is provided with a first connection column and a second connection column, the front end of the needle tube is provided with a groove, the side wall of the groove is provided with an internal groove, and the first connection column is provided with an external thread and a positioning groove. The inner needle is mounted on the needle tube, a rotating sleeve is arrangedat the rear end of the outer sleeve needle and internally provided with a connection groove, and a limiting device is arranged on the outer sleeve needle which externally sleeves the inner needle. Theinner needle is provided with a suction notch which is provided with a barb, the outer sleeve needle is provided with an edge notch, and a needle head of the inner needle is in a solid sharp edge structure. In use of the rotary-cutting type biopsy needle, the needle head of the inner needle penetrates the outer sleeve needle to extend outwards. The rotary-cutting type biopsy needle is simple in structure, convenient to operate, low in cost and high in practicality, traumas caused to patients can be reduced, and great clinical progress is achieved, so that the rotary-cutting type biopsy needleis suitable for popularization and utilization.

Description

technical field [0001] The invention relates to the technical field of biopsy devices, in particular to a rotary cutting biopsy needle. Background technique [0002] In medical diagnostic practice, it is often necessary to perform a biopsy (biopsy) to remove a patient's tissue or fluid sample for pathological studies. For example, biopsies can be useful in diagnosing various forms of cancer and other diseases affecting localized areas of tissue. Biopsies can be used to obtain tissue and / or fluid samples from muscles, bones, and organs such as the liver or lungs. At present, biopsy samples are mostly obtained through invasive surgical procedures, which can easily cause greater trauma to patients and is not conducive to popularization and use. Contents of the invention [0003] Aiming at the defects of the above-mentioned prior art, the present invention provides a rotary cutting biopsy needle, which is simple in structure, convenient in operation, low in cost, can reduce ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B10/02
CPCA61B10/0266A61B10/0275A61B10/0283
Inventor 黄月亮
Owner 黄月亮
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