Thermocoagulation scalpel

Abstract

The invention relates to a thermocoagulation scalpel, which is composed of a scalpel blade and a scalpel handle, the scalpel blade and the scalpel handle form an integral structure, a blade is provided on one side of the front end, and a blade body is provided at the peripheral joint of the blade , the cutter body is in the shape of a multi-layer sheet, the base layer of the cutter body is an insulating base layer, and the cutter body is respectively a heating element, an insulating encapsulation layer and a Teflon coating from the inside to the outside, and an electrode is provided at the rear of the cutter body, The electrodes are inserted into the front end of the handle of the scalpel, and are in a fixed connection state as a whole. An external heater and an external temperature sensor are attached to the outside of the scalpel, and the external heater is a heating circuit; Tropical; the blade surface adopts external heating, which makes it "hot" but not "electric", ensuring the safety of the scalpel. The scalpel blade and the scalpel handle are integrated, and the scalpel blade and the scalpel handle can be used repeatedly for many times. Because it is disinfected in one piece before each use, it is safe and reliable and prevents cross-infection.

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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