Cell puncture needle for pathological examination

Abstract

The invention discloses a cell puncture needle for pathological examination. The cell puncture needle comprises a supporting structure including a connecting portion, an upper square tube body and a lower square tube body, a braking structure including a connecting block and a pressing head, a puncturing structure including a suction cylinder, a puncturing needle body, a piston and a pull rod, anextending length adjusting structure, and a puncturing length adjusting structure including a handle, a clamping block, a moving cylinder and a second spring, wherein the connecting portion comprisesa connecting column, an upper supporting wall and a lower supporting wall, one outer side wall of the lower square tube body is provided with a vertical groove, and the other outer side wall of the lower square tube body is provided with a plurality of clamping grooves. The extending length adjusting structure is a first spring sleeving the peripheral wall of the suction cylinder. The cell puncture needle for pathological examination can accurately adjust the puncturing depth of a puncturing needle according to a puncturing position, avoids the problem that a medical worker cannot master the puncturing depth due to strength problem and accordingly puncturing failure is caused, improves the puncturing accuracy and precision and is convenient to use.

Description

technical field [0001] The invention relates to the technical field of puncture needles, and more specifically, the invention relates to a cell puncture needle for pathological examination that can accurately adjust the puncture depth. Background technique [0002] At present, it is well known that the clinical use of puncture needles to take cell and tissue samples for pathological examination is an important means for diagnosing the nature of tumors. At present, puncture needles are mainly used. [0003] The existing hand-held puncture needle has the advantages of simple structure and convenient operation, so it is widely used, but there are differences in the strength of doctors, and the depth of the punctured part is different, which results in the inability to effectively control the depth of puncture, and then cannot Successfully completing the collection of pathological cells often requires multiple operations to collect pathological cells, which greatly increases the...

AI Technical Summary

Problems solved by technology

[0003] The existing hand-held puncture needles have the advantages of simple structure and convenient operation, so they are widely used, but there are also differences in the strength of doctors, and the depths of the punctured parts are different, which makes it impossible to effectively control the depth of puncture, and then cannot Successfully completing the collection of pathological cells often requires multiple operations to collect pathological cells, which greatly increases the labor intensity of medical staff

Images