HR surgical generator
AssigneeErbe Elektromedizin GmbH
InventorsHeiko Schall, Florian Eisele
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Abstract
A high-frequency surgical generator including a power supply for supplying rectified electrical energy, a power oscillator for supplying a potential-free, DC current-free and DC voltage-free high frequency voltage and a control device for controlling the high frequency voltage wherein the power supply is configured as a current source for supplying a load-independent output current, such that the load-independent output current of the power supply serves as the control variable for controlling the high-frequency voltage. The target value of the load-independent output current is pre-determined by the control device. The high-frequency surgical generators configured as such achieve improved modulation capability.
Claims16
A high-frequency surgical generator, comprising:
- a power supply for supplying rectified electrical energy;
- a power oscillator for supplying a high-frequency voltage, the high-frequency voltage being potential-free, DC current-free and DC voltage-free;
- and
- a control device for controlling the high-frequency voltage by controlling the power supply,
- wherein the power supply is configured as a current source for supplying a load-independent output current, a target value of which is pre-determined by the control device such that the load-independent output current of the power supply serves as the control variable for controlling the high-frequency voltage.
A method for generating a high-frequency voltage in a high-frequency surgical generator, comprising:
- generating a rectified electrical energy in a power supply;
- and
- generating a potential-free, DC current-free and DC voltage-free regulated high-frequency voltage,
- wherein the power supply is controlled by a control device to supply a load-independent output current with a pre-determined target value, such that the load-independent output current of the power supply regulates the high-frequency voltage as the control variable.
Dependencies are inferred from the claim text.