End cutting biopsy gun

Abstract

An end cutting biopsy gun comprises an outer sleeve assembly, a cutting tube assembly, an inner core needle and a handle assembly, the outer sleeve assembly comprises an outer sleeve and an outer sleeve fixing piece, the cutting tube assembly comprises a cutting tube and a cutting tube fixing piece, the inner core needle is fixedly installed on the handle assembly, and an upper shell and a lower shell form a handle inner cavity; a first step is arranged in the inner cavity of the handle, a sliding groove for the cutting pipe fixing piece to drive the outer sleeve fixing piece to move front and back is formed in the inner cavity of the handle, and a push handle is arranged on the outer side of the inner cavity of the handle. Compared with the prior art, the cutting space is the cylindrical cutting groove, the amount of tissue taken out at a time is equal to more than two times that of a traditional semicircular cutting groove, the taken-out amount is thicker, and the accuracy of case analysis is guaranteed; in addition, the sampling length of the cylindrical cutting groove can be achieved by adjusting the gear piece, a doctor can adjust the sampling amount of the tissue according to requirements, and therefore quantitative sampling is achieved. One-key shooting is realized, and the operation is simple.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an end-cutting biopsy gun. Background technique [0002] Tumor is a lesion formed when a certain cell in a local tissue loses normal regulation of its growth at the gene level under the action of various carcinogenic factors, resulting in abnormal clonal proliferation. It is generally divided into two categories: benign and malignant. [0003] Early detection, correct diagnosis, and timely treatment have an important impact on the prognosis. With the continuous upgrading and improvement of examination methods and methods, the accuracy of diagnosis has gradually increased, but there are still a large part of tumors that do not have typical imaging features, making diagnosis difficult. A correct diagnosis requires a combination of clinical, imaging, and pathological factors. Among them, pathological diagnosis plays a key role in the selection of treatment options. Biop...

AI Technical Summary

Problems solved by technology

[0005] The cutting of the traditional biopsy needle is a semicircular cutting groove. Since the cutting groove is set on the inner core needle with a small inner diameter, the space for the tissue after cutting is small. Re-sampling is required, causing secondary pain to the patient and reducing the effectiveness of the biopsy needle

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