Multi-resonant electrosurgical generator
AssigneeCilag GmbH International
InventorEric LAFAY
Life of this patent
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Abstract
A multi-resonant therapeutic converter includes N+1 branches coupled to a voltage source and a ground, each branch including two transistors. The two transistors of each branch include a high-side transistor coupled to the voltage source and a low side transistor coupled to the high side transistor and the ground. The multi-resonant therapeutic converter includes N resonant tanks each coupled to a respective branch of the N+1 branches and a coil. The coil is further coupled to one of the N+1 branches. The first resonant tank is associated with a first operation and the second resonant tank is associated with a second operation. The coil is selectively powered with the first and second resonant tanks based on states of the transistors of the of the N+1 branches.
Claims20
A multi-resonant therapeutic converter, comprising:
- N+1 branches coupled to a voltage source and a ground, each branch comprising two transistors;
- and
- N resonant tanks each coupled to a respective branch of the N+1 branches and a coil, wherein the coil is further coupled to one of the N+1 branches.
A surgical system comprising:
- a surgical instrument operable to perform a first operation and a second operation;
- a multi-resonant therapeutic converter including a first resonant tank associated with the first operation and a second resonant tank associated with the second operation;
- and
- a controller operable to selectively power the surgical instrument with the first and second resonant tanks.
A method, comprising:
- determining, by a controller, an operation to perform with a surgical instrument;
- applying current, through a first resonant tank, to the surgical instrument based on the determined operation;
- receiving, by the controller, an input indicative of a voltage applied to the surgical instrument;
- and
- applying current, through a second resonant tank, to the surgical instrument based on the received input.
Dependencies are inferred from the claim text.