HIGH-FREQUENCY SURGICAL DEVICE, AND OPERATION MONITORING DEVICE FOR A HIGH-FREQUENCY SURGICAL DEVICE

摘要

The disclosure pertains to a high-frequency surgical device with a power-supply unit (1) provided with a high-frequency transformer (6), and an associated electronic control system (2). Also disclosed is an operation monitoring device for high-voltage relays used in surgical devices. The purpose of the invention is to specify a high frequency surgical device which, without using a mains separation transformer for galvanically separating the mains and user-side, complies with the relevant standards established for electrical medical devices. The high-frequency surgical device is characterised in that it has an operation monitoring device for high-voltage relays and in that the high-frequency transformer constitutes the sole galvanic separation between the mains supply voltage and the patient-user side (7) of the system. The operation monitoring device for high-voltage relays is characterised in comprising the following elements: a control logic unit for at least one relay; an adjustable voltage source; an inductance measurement circuit; and a driver unit with at least one relay driver.