A retractable pen

Abstract

The invention discloses a retractable knife pen. The retractable knife pen comprises a pen body cover, a knife pen head (1), a knife pen guide core (4) connected with the tail end of the knife pen head (1), a retractable sleeve (5) arranged on the knife pen guide core (4) in a sleeving mode, a knife pen sleeve (3) connected with the retractable sleeve (5), wherein the retractable sleeve (5) can linearly move along the knife pen guide core (4), and the knife pen sleeve (3) can shield the knife pen head (1). The retractable knife pen further comprises a circuit assembly (9) packaged in the pen body cover, an electronic line of a knife pen line (11) is welded to the circuit assembly (9), and a gas pipe of the knife pen line (11) is loaded into a hole in the tail portion of the knife pen guide core (4). The retractable knife pen effectively solves the problem that a knife pen cannot achieve spray coagulation.

Description

technical field [0001] The invention relates to the technical field of surgical instruments, in particular to a retractable knife pen. Background technique [0002] In the prior art, the knife pen is a one-time unipolar knife pen mode, without argon, without argon enhancement function and argon spray coagulation function, even the knife pen head with argon gas cannot be covered, and the spray coagulation function cannot be realized; and , The retractable pen tip and the pen with knife do not have the function of replacing the pen tip. The pen tip is easy to get dirty and is not suitable for cleaning, which has obvious limitations and shortens the life of the pen knife; the reusable pen sleeve is not detachable, which is not conducive to cleaning and replacement; The knife pen and the knife pen line are integrated in a structural manner, which is not conducive to packaging and cleaning. [0003] To sum up, how to effectively solve the problem that the knife pen cannot achiev...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a telescopic knife pen, which effectively solves the problem that the knife pen cannot realize spray coagulation

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