產品

Single-circuit negative plates are a common form of circuit negative plate, and they are integrated with conductive metal foils, which are connected to the high-frequency electrosurgical unit via a circuit. The high-frequency electrosurgical unit detects whether it is safe and compatible based on capacitance effect. When there is no negative plate in the high-frequency electrosurgical unit, the unit will sound an alarm, reminding medical staff that the negative plate is not connected. Although this single-circuit negative plate is simple, it has certain drawbacks; it can only detect whether the circuit negative plate is connected, but not whether the negative plate is connected to the skin and effective.