Spring mode skin biopsy ring cutter

Abstract

The invention provides a skin tissue pathological specimen collection tool, relates to a spring mode skin biopsy ring cutter, and belongs to the technical field of medical apparatus and instruments. The spring mode skin biopsy ring cutter comprises an outer sleeve, a middle sleeve, a depth regulating sleeve, a center slide bar, a reset cutting ferrule, a bayonet lock, a pressure spring, a reset spring, a ring cutter bit, an outer hoop, a release button and a depth dividing rule. The spring mode skin biopsy ring cutter is characterized in that the depth regulating sleeve is screwed onto the middle sleeve; the center slide bar penetrates into the middle sleeve; the reset cutting ferrule is glidingly arranged at the upper end of the center slide bar through the pressure spring and the reset spring; the outer sleeve is screwed onto the reset cutting ferrule; the ring cutter bit is screwed onto the lower end of the center slide bar; the outer hoop is fixedly arranged on the middle sleeve; the release button is arranged between the outer hoop and the middle sleeve. As a spring mode is adopted by the spring mode skin biopsy ring cutter, cutter feeding is finished instantly, and therefore, the operation time is greatly shortened, and the pain of a patient is reduced. The spring skin biopsy ring cutter is simple and convenient in operational process, and suitable for being clinically popularized and applied.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a skin histopathological sample collection tool—a spring-pressed ring cutter for skin biopsy. Background technique [0002] At present, with the improvement of economic development and people's living standards, people pay more and more attention to the health requirements of their own skin. Skin histopathology is of great value for the diagnosis of skin diseases, and at the same time, it is of great significance for understanding the occurrence, development, outcome, general state of the body and the selection of treatment methods. In order to obtain high-value pathological pictures, regular specimens must be available. There are three methods of skin sample collection: surgical excision, trepanation, and paring. Among them, the surgical cutting method and the cutting method are to directly cut off the diseased skin with a scalpel to directly obtain samples, which ar...

AI Technical Summary

Problems solved by technology

The shortcoming of this kind of trephine is that: there is no scale on the trephine knife, which makes it difficult to control the depth of material collection. If the depth is not enough, it will cause the failure of material collection; the operation of the trephine drill is manual spiral into the skin, which is very random. , the accuracy is not enough

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