Back to results
US 12,642,571 B2Granted
Multiplexed hand switches for use with electrosurgical generators
AssigneeCovidien LP
InventorsLewis R. Puterbaugh, Mark A. Johnston
Life of this patent
Estimating the term…
Abstract
An electrosurgical system includes an electrosurgical device including a pair of opposing jaw members movable between an open jaw position and a closed jaw position, a main switch, a button configured to actuate the main switch, and a secondary switch configured to actuate based on the thickness of the grasped tissue. The system also includes an electrosurgical generator coupled to the electrosurgical device, the electrosurgical generator is configured to generate an electrosurgical output in response to actuation of the main switch and the secondary switch.
Claims10
An electrosurgical system comprising:
- an electrosurgical device including:
- a pair of opposing jaw members movable between an open jaw position and a closed jaw position and configured to treat tissue;
- a foot switch configured to activate a supply of electrosurgical energy;
- and
- a multiplexer circuit for outputting a voltage signal, the multiplexer circuit comprising:
- a main switch configured to activate the supply of electrosurgical energy;
- a secondary switch configured to actuate based on a thickness of tissue grasped between the pair of opposing jaws;
- and
- one or more resistors coupled to the main switch and the secondary switch to at least partially define the voltage signal;
- and
- a signal processor configured to determine, based on the voltage signal, a switch combination comprising a switch state for each of the main switch and the secondary switch;
- and
- an electrosurgical generator coupled to the electrosurgical device, the electrosurgical generator configured to generate an electrosurgical output in response to the switch combination.
10 more elements
Dependencies are inferred from the claim text.