What is high-frequency electrosurgical knife?
High-frequency electrosurgical knife (high-frequency surgical instrument) is an electrosurgical instrument that replaces mechanical scalpels for tissue cutting. It heats the tissue when the high-frequency high-voltage current generated by the effective electrode tip is in contact with the body, and realizes the separation and coagulation of the body tissue, thereby achieving the purpose of cutting and hemostasis.
The high-frequency electrosurgical knife has been used in clinical practice in 1920 and has a history of more than 90 years. It has undergone four generations of spark plug discharge-high-power electronic tube-high-power transistor-high-power MOS tube. With the popularization, application and development of computer technology, automatic adjustment of power waveforms, voltages and currents under various functions, detection of various safety indicators, as well as programmed control and fault detection and indication have been implemented. Therefore, the safety and reliability of the device itself are greatly improved, and the doctor's operation process is simplified.
At the same time, with the development of medical technology and clinical requirements, compound electrosurgical equipment based on high-frequency surgical instruments has also developed correspondingly: high-frequency argon knife, high-frequency ultrasonic surgery system, and high-frequency electric resection Equipment such as speculum treatment system and high-frequency rotary cutting degreasing machine have achieved remarkable results in clinical practice. And the various special accessories for high-frequency surgical instruments (such as: bipolar resection scissors, bipolar resection mirror, resection mirror vaporized roller electrode, etc.) have also opened up a wider range of applications for clinical surgery.
