Plasma scalpel power supply control system

Abstract

The plasma scalpel power supply control system comprises an active grid-connected rectifying unit, a full-digital full-bridge LLC unit, a low-frequency voltage stabilizing circuit, an envelope line generating circuit, a high-frequency three-level H-type inverter bridge parallel group, a high-frequency high-voltage transformer and an FPGA software module which are connected in sequence. The FPGA software module is respectively connected with the active grid-connected rectifying unit, the full-digital full-bridge LLC unit, the low-frequency voltage stabilizing circuit, the envelope line generating circuit, the high-frequency three-level H-type inverter bridge parallel group and the high-frequency high-voltage transformer. Compared with a traditional power supply, isolation and safety are fully considered, and particularly, the absolute safety of a human body is fully ensured due to the addition of a capacitor charging and discharging link; besides, the working frequency can be improved from 10k level to million level, the wound is not easy to carbonize and heal during cutting, and the blood flow amount in the operation process is smaller.

Description

Technical field [0001] The present invention relates to the field of low temperature plasma medical technology, and more particularly to a plasma surgical knife power control system. Background technique [0002] The low temperature plasma knife is a new type of soft tissue minimally invasive surgery that has been developed in recent years, with its power host, while shrinking the lesion, the tissue normal cell can be minimized. Its working principle is to form a plasma field between the electrolyte fluid between the tissue and the plasma knife by the pulsed energy emitted by the power source host, and the cutter is formed in the core, and a large amount of high-energy plasma is generated in the thin layer, and the lesion is generated. The molecular bond of tissue cell protein is thus reseudently removes the lesion. The low-temperature plasma knife achieves cutting of lesions in a low temperature environment of 50 to 70 ° C, greatly reducing the degree of wound carbonization, mak...

AI Technical Summary

Problems solved by technology

[0003] The main circuit structure of the traditional plasma scalpel power host is relatively simple, so it is poor in anti-interference, the work is not stable enough, and it lacks a high-safety and stable control system, so it will pose a safety hazard to patients.

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