Disposable cytology biopsy needle

Abstract

The invention discloses a disposable cytology biopsy needle which comprises a carrier and an air exhaust assembly. The top surface of the carrier is in threaded connection with a cylindrical seat, a needle rod is arranged on the surface of the cylindrical seat, a sampling assembly is arranged in the carrier, the sampling assembly comprises a sample box, a pull rod, a rubber plug and a limiting plate, an opening and closing assembly is arranged on the sampling assembly, and the opening and closing assembly comprises a sample injection head, a sealing ring and a control rod; the air exhaust assembly comprises a middle groove, a limiting block, a guide groove, a screw rod and a rotating wheel, the middle groove is formed in the middle of the side face of the carrier and penetrates through the two sides of the carrier, the limiting block is slidably connected into the middle groove, the guide groove is formed in the surface of the limiting block, and the screw rod is in threaded connection into a screw hole in the middle of the bottom face of the middle groove; according to the disposable cytology biopsy needle, the purchase cost is reduced, sampling is more convenient and faster, a collected sample can be taken out conveniently, and practicability is high.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a disposable cytology biopsy needle. Background technique [0002] Biopsy needle is a kind of biopsy needle used for sampling and absorbing cells of pyramidal tumors and unknown tumors in various organs such as kidney, liver, lung, breast, thyroid, prostate, pancreas, testis, uterus, ovary, and body surface. For medical devices, some of the existing one-time biopsy needles with multiple integrated structures need to be discarded after use, the purchase cost is high, and the operation is not convenient enough to take out samples. Therefore, we propose a one-time Sex cytology biopsy needle. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the existing defects and provide a disposable cytology biopsy needle, which reduces the purchase cost, makes sampling more convenient, and facilitates taking out the sample. I...

AI Technical Summary

Problems solved by technology

[0002] Biopsy needle is a kind of biopsy needle used for sampling and absorbing cells of pyramidal tumors and unknown tumors in various organs such as kidney, liver, lung, breast, thyroid, prostate, pancreas, testis, uterus, ovary, and body surface. For medical devices, some of the existing one-time biopsy needles with multiple integrated structures need to be discarded after use, the purchase cost is high, and the operation is not convenient enough to take out samples. Therefore, we propose a one-time sex cytology biopsy needle

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