Monopolar shield current monitoring systems and methods
AssigneeCilag GmbH International
InventorsJonathan SAMUEL, Osvaldo A. BONILLA
Life of this patent
Estimating the term…
Abstract
A surgical system is disclosed including a surgical instrument and a controller in operable communication with the surgical instrument and an energy generator. The surgical instrument comprises a shaft, an electrode extending within the shaft, and a shield capacitively coupled to the electrode. The controller is operable to provide a voltage to the electrode from the energy generator, receive a shield current from the shield based on providing the voltage to the electrode, and determine a status of the surgical instrument based on the received shield current.
Claims20
A surgical system, comprising:
- a surgical instrument, comprising:
- a shaft;
- a conductor extending within the shaft;
- and
- a shield capacitively coupled to the conductor;
- and
- a controller in operable communication with the surgical instrument and an energy generator, wherein the controller is operable to:
- provide a voltage to the conductor from the energy generator;
- receive a shield current from the shield based on providing the voltage to the conductor;
- and
- determine a status of the surgical instrument based on the received shield current.
A surgical system, comprising:
- a surgical instrument, comprising:
- a shaft;
- an electrode arranged at an end of the shaft and energizable to provide energy to tissue;
- a conductor extending within the shaft and electrically coupled to the electrode;
- and
- a shield capacitively coupled to the conductor;
- and
- a controller in operable communication with the surgical instrument and an energy generator, wherein the controller is operable to:
- receive an input indicative of an operating mode of the surgical instrument;
- provide a voltage to the conductor and the electrode from the energy generator in the operating mode;
- determine an expected shield current based on the operating mode of the surgical instrument and the voltage;
- receive an actual shield current from the shield based on providing the voltage;
- and
- determine a condition of the surgical instrument based on the expected shield current and the actual shield current.
A non-transitory computer readable medium storing instructions that, when executed by a processor, cause the processor to:
- receive an input indicative of an operating mode of a surgical instrument;
- control an energy generator to provide a voltage to a conductor of the surgical instrument, the conductor being capacitively coupled to a shield of the surgical instrument;
- determine an expected shield current based on the operating mode of the surgical instrument and the voltage;
- receive an actual shield current from the shield based on providing the voltage;
- compare the expected shield current and the actual shield current;
- and
- detect an abnormality in the surgical instrument based on the comparison.
Dependencies are inferred from the claim text.