Telescopic intraoperative dissector

Abstract

The invention relates to the field of medical apparatuses for surgical operations, in particular to a telescopic intraoperative dissector. The telescopic intraoperative dissector is characterized by comprising a cannula (1), an electrode (2), a handle (3), and a control board (4). The handle (1) is in the structure of a hollow cavity; the cannula (1) comprises an inner tube (11) and an outer tube (12); the inner tube (11) and the outer tube (12) are actively connected;a clamping groove is formed in the internal port of the inner tube (11) and is electrically connected with the control board (4) through a wire; the electrode (2) is arranged in the clamping groove and a discharge port of the electrode (2) extends out of the cannula (1) port. The telescopic intraoperative dissector has the advantages that the position of the electrode can be adjusted at will; the electrodes for different usages can be changed quickly in an operation by arranging the clamping groove; a lighting device without a battery can effectively prevent the contamination of the battery on the telescopic intraoperative dissector, and further eliminate the electromagnetic interference of lighting device on the control board; the installation of smoke-guiding tube can achieve the various functions of extracting the smoke and exudate, and introducing the argon and cleanout fluid when the smoke-guiding tube is connected with different external equipment.

Description

technical field [0001] The invention relates to the field of surgical medical instruments, in particular to a retractable intraoperative dissector. Background technique [0002] The intraoperative dissector, also known as the electrosurgical pen, is currently widely used in surgical operations and is an electronic surgical instrument that replaces mechanical scalpels for tissue cutting. [0003] The working principle of the electric knife pen is to pass the high-frequency current through the electrode to reach the target tissue, and the part close to the target tissue and the electrode is rapidly heated and vaporized by the high-frequency current. In the specific operation process, the functions of cutting and coagulation are respectively realized through the frequency change of the high-frequency current. [0004] In the prior art, the electrodes of the electric knife pen are usually fixedly installed on the handle, and it is extremely inconvenient to operate when a deep w...

AI Technical Summary

Problems solved by technology

Although the above-mentioned patent partially solves the problem of electrode expansion and contraction, due to the fixed length of the casing outside the electrode, when the electrode is extended too long, it may cause side wall discharge and cause misoperation

[0006] At the same time, in order to avoid cross-infection during use, the electric knife pen cannot be reused many times

However, the traditional fixed electrosurgical pen cannot replace the electrodes, so it is necessary to use multiple electrosurgical pens with different electrodes to complete certain operations, which adds unnecessary economic burden to patients.

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