Thermocoagulation scalpel

Abstract

The invention relates to a thermocoagulation scalpel, which is composed of a scalpel blade and a scalpel handle, wherein the scalpel blade and the scalpel handle are combined into a whole body; a cutting edge is arranged at one side of the front end of the whole body; a scalpel body is connected to the periphery of the cutting edge; the scalpel body is represented as a multi-layer thin sheet; thebase layer of the scalpel body is an insulating base layer; the scalpel body, from inside to outside, includes a heating body, an insulating encapsulating layer and a Teflon coating; electrodes are arranged at the back of the scalpel body; the electrodes are inserted into the front end of the scalpel handle, and an integrally fixedly connected state is achieved; an external heater and an externaltemperature sensor are attached to the exterior of the scalpel blade; the external heater is a heating circuit; the heating body is a loop-like loop heating strip; and the side of the blade is subjected to external-heated design, exactly the blade side is 'heated' but not 'charged', so that the safety of using the scalpel is guaranteed. The scalpel blade and the scalpel handle, which are integrated, can be repeatedly used for several time. The scalpel, which is integrally disinfected before used in each time, is safe and reliable, and the occurrence of cross infection is prevented.

Description

technical field [0001] The invention relates to a medical surgical scalpel, in particular to a thermocoagulation scalpel. Background technique [0002] Scalpels are the basic medical instruments for surgical operations, including two categories: ordinary metal surgical blades and high-frequency electric scalpels. Ordinary metal scalpels have the advantages of sharp, accurate and dexterous use, but bleeding occurs when cutting and separating tissues during surgery, and controlling bleeding (hemostasis) becomes an important and time-consuming part of the surgical operation. Moreover, bleeding will interfere with the surgeon's field of vision, Prolonging the operation time, reducing the accuracy of the operation, and complications in severe cases; the hemostatic effect of the high-frequency electric knife is clear, but its instantaneous temperature exceeds 1000 degrees Celsius, and the tissue eschar is severely carbonized, which affects the healing of the extended tissue and re...

AI Technical Summary

Problems solved by technology

The output of the temperature sensing circuit of the thick film circuit of the blade body is connected with the temperature detection and signal transformation circuit of the power output control host through wires, and the output of the power generation circuit in the control host is connected with the electricity / power in the thick film circuit of the blade body through wires. The thermal power converter is connected. The structure of the scalpel is relatively complicated. The scalpel is made of high-speed steel substrate and ceramic substrate. The material is fragile and brittle during use, resulting in a short service life. It is easily damaged during the process and affects the heat conduction effect, thereby affecting the operation and increasing the risk of re-injury during the treatment period of the patient. In addition, the temperature control of the ceramic substrate is not accurate during work, and the temperature control compensation is insufficient, which makes the blade warm up and return to normal. The temperature is not enough, and the expected effect cannot be achieved

[0004] In order to overcome the defects, U.S. Patent Nos. US3768482, US 4219025, and US4231071 describe that the blades of the device are equipped with multi-point parallel or serial structure heating points. Insufficient temperature recovery, because the blade has a multi-point heating structure, the heating point cannot conduct a sufficient amount of heat from the proximal end to the edge of the blade. In this case, the cutting rate and depth are limited. Compared with the entire blade, the heating area is small and the temperature rises The speed is slow, which further leads to limited selection of substrates, and it is difficult to maintain the sharpness of the edge of the blade, which is not conducive to market promotion and application

Since the blades are sterilized, the handles used repeatedly cannot be sterilized, and the slots for inserting the blades in the handles cannot be sterilized. Therefore, cross-infection is likely to occur when operations are performed in the future. This plug structure cannot meet the current market requirements and is not conducive to domestic use and promotion

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