Electrosurgical pencil with telescopic light source

Abstract

The invention discloses an electrosurgical pencil with a telescopic light source. The electrosurgical pencil comprises a plug, an electrosurgical pencil main body, a functional tube, a telescopic electrode, an illuminating lamp bead, a lamp bead control assembly and a circuit board, wherein the illuminating lamp bead is arranged on the electrode. According to the electrosurgical pencil with the telescopic light source, the illuminating lamp bead is arranged on the electrode, so that the illuminating lamp bead can do telescopic motion synchronously along with stretching and retracting of the electrode in a surgical process, and the distance between the illuminating lamp bead and the head of the electrode is kept unchanged all the time; and the electrosurgical pencil achieves the function that the light source of the electrosurgical pencil stretches and retracts along with the electrode through a simple structure, and therefore the problems that when a common fixed light source type telescopic electrosurgical pencil is used for a deep operation, the light source becomes dark and light is scattered due to electrode stretching are solved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular, the invention relates to a surgical electric knife pen with a retractable light source. Background technique [0002] Surgical electric knife is an electrosurgical instrument that replaces the mechanical scalpel for tissue cutting. It heats the tissue when the high-frequency voltage and current generated by the effective electrode tip contacts the body, and realizes the separation and coagulation of the body tissue, thereby playing a role. For cutting and hemostasis purposes. The surgical electrosurgical knife in the prior art is generally composed of a casing, electric key buttons, an electrosurgical knife head, wires and a circuit board. Lighting lamp beads are arranged on the housing. For example, Chinese patent CN201720038002.9 discloses a multi-functional precision surgical electrosurgical pen that can change the lighting mode. Switch, arc clamping position, sca...

AI Technical Summary

Problems solved by technology

In addition, Chinese patent CN201821139771.9 also discloses a general surgery multifunctional surgical electric knife, which includes a sheet electrode, a connector, a handle, an electric cutting button, an electric coagulation button, a lighting switch, a power cord, a power plug, and a lighting device And the pinhole camera, the outer diameter of the top of the sheet electrode and the inner diameter of the bottom of the connector are plugged into each other. A ring-shaped lighting device is set at one end of the handle, and the ring-shaped LED light board is controlled by the current passing through the lighting switch. Illumination of the site solves the problem that the incision site cannot be illuminated without dead angle, and there are shadows, which are not conducive to the operation.

[0003] Surgical electric knife in the prior art all is that illuminating light source is fixedly arranged on the outer casing of electric knife pen, like this, illuminating light source just can't move together with stretchable electrode during operation, for some needing to carry out in the dark opening place. For surgical operations, when the electrodes are stretched, the fixed lighting source will have the problem of dimming or astigmatism. Therefore, the surgical electrosurgical knife with this design cannot fully illuminate the surgical site and cannot meet the surgical needs

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