Thermocoagulation surgical system

Abstract

The invention relates to a thermocoagulation surgical system comprising a main unit, a surgical knife assembly, and a pedal control system. A computer system, an analog-digital conversion circuit, a temperature control system, an operation prompt circuit and a display circuit are arranged inside the main unit. A power isolation transformer disposed inside the main unit converts mains supply into direct current which is output to the computer system, a display and an electric / heat power converter. The surgical knife assembly comprises a surgical blade and a surgical handle; a heating element is disposed inside the surgical blade and comprises a heating member, an insulating coating layer and a Teflon coating. The pedal control system comprises a pedal switch and a main unit pedal switch socket connected with the same through a wire. The heating member is a looped heating tape in a loop shape; the surface of the surgical blade is externally heated; an external heating circuit is arranged outside the surface of the surgical blade and is precisely controlled by the computer system to be 'hot' or 'unchanged', and usage safety of the surgical blade is ensured.

Description

technical field [0001] The invention relates to a medical surgical operation system, in particular to a thermocoagulation operation system. 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 working principle is the principle of electric ignition that can pass through the positive and negative high-voltage electricity, which wil...

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. Thermal power converter connection, the structure of the scalpel is relatively complex, divided into seven layers to affect heat conduction and use effect

At the same time, the scalpel uses a high-speed steel base material to sandwich the ceramic base material. The material is fragile and brittle during use in this packaging method, resulting in a short or interrupted service life. The ceramic base material scalpel is easily damaged during the operation. And affect the heat conduction effect, thereby affecting the operation, increasing the risk of re-injury during the patient's treatment. 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 temperature replenishment and recovery insufficient. to the expected effect

[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

Images