Three-concave screw type cutter head of breasts biopsy and rotary-cut probe

Abstract

The invention belongs to the field of puncturing probe head or cutter head, and relates to a three-concave screw type cutter head of a breasts biopsy and rotary-cut probe. The cutter head comprises acutter head body (1) and a connecting base (2). Three concaves (1.1) with the same structure are formed in the cutter head body (1), a parabola type auxiliary cutter (1.2) is formed on the rear portion of each concave (1.1), a screw main cutter (1.3) is formed on the front portion of each concave (1.1), three parabola type auxiliary cutters (1.2) and three screw main cutters (1.3) are totally formed on the cutter head body (1), a tip end (1.4) is formed on the top end of the cutter head body (1) by the three screw main cutters (1.3), and a torsion angle of each screw main cutter (1.3) is 75 degrees. The three-concave screw type cutter head of the breasts biopsy and rotary-cut probe is capable of reducing forward resistance of an inserting apparatus, improving smoothness of inserting, breaking monopoly of foreign manufacturers, and reducing cost.

Description

technical field [0001] The invention belongs to the field of medical equipment. The invention relates to a medical puncture needle or cutter head, in particular to a three-concave spiral cutter head for breast biopsy and rotary cutting probes. Background technique [0002] Breast biopsy, that is, pathological examination of breast biopsy, refers to the use of surgical methods such as local excision, forceps, puncture needle aspiration, scratching, and extirpation. To perform a breast biopsy, a breast biopsy and atherectomy probe are used. [0003] At present, the common breast biopsy and rotary section probes on the market are usually American Mammotome breast biopsy and rotary section probes or American Bard breast biopsy and rotary section probes. Among them, the American Mammotome breast biopsy and rotary cutting probe has a two-concave common knife tip, and the American Bard breast biopsy and rotary cutting probe has a three-concave common knife tip, and their insertio...

AI Technical Summary

Problems solved by technology

In this way, before inserting into the lesion, the passing healthy tissue will be pushed to the lesion, which not only has a large resistance, but also squeezes the lesion. Therefore, there are disadvantages such as high insertion resistance, low insertion smoothness, and affecting the lesion.

Moreover, these breast biopsy and rotary cutting probes are all foreign products, which have been monopolized by foreign imported manufacturers for a long time, and the prices are high, which increases medical costs.

Images