Abstract: Example plasmaclave devices are shown for using a plasma to sterilize objects or equipment (e.g., medical instruments, surgical devices, food preparation utensils, etc.) placed inside the plasmaclave devices. In some embodiments, the plasmaclave device includes fixed magnets, steering coils, and a high voltage electrode for generating a plasma field and controlling where the plasma field is focused, so that the plasma field is rapidly scanned over a target surface. In some embodiments, the plasmaclave device includes a high voltage coil, a motor, and a blade electrode for generating a plasma field and spinning the blade electrode, so that the plasma field is rapidly scanned over a target surface.

Abstract: A tissue treatment device includes a circuit driver, an electrode, and a plasma arc focusing element, all disposed within a housing. The circuit driver generates a plasma arc source signal. The electrode generates a plasma stream in response to the plasma arc source signal. The plasma arc focusing element focuses the plasma stream to pass through an outlet hole of the housing and onto a target spot on a target tissue of a treatment subject for heat treatment of the target tissue. In some embodiments, the circuit driver controls a temperature increase of the target tissue by modulating a fundamental frequency, power level, pulsing frequency, and/or pulsing duty cycle of the plasma arc source signal.