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US 11,304,743 B2Granted
Electrosurgical forceps
AssigneeCovidien LP
InventorsGrant T. Sims, Kelley D. Goodman, Craig V. Krastins, Robert F. Mccullough, Jr., Jennifer L. Rich, Daniel W. Mercier
Life of this patent
Estimating the term…
Abstract
An electrosurgical forceps includes a pair of first and second shaft members pivotably coupled to one another, an end effector assembly coupled to the pair of first and second shaft members, a knife, and a biasing member. The biasing member is disposed about the knife and configured to resiliently bias the knife toward a retracted position.
Claims17
An electrosurgical forceps, comprising:
- a pair of first and second shaft members pivotably coupled to one another;
- an end effector assembly coupled to the pair of first and second shaft members and configured to pivot about a pivot member between an open configuration and a closed configuration in response to pivoting of the first and second shaft members;
- a knife selectively translatable through the first shaft member from a retracted position to an extended position in which the knife extends at least partially through the end effector assembly, the knife having a wall projecting outwardly therefrom;
- and
- a biasing member disposed about the knife and configured to resiliently bias the knife toward the retracted position, the biasing member being positioned between the pivot member and the wall of the knife.
2 more elements
An electrosurgical forceps, comprising:
- a pair of first and second shaft members pivotably coupled to one another;
- a trigger rotatably supported by at least one of the first or second shaft members and configured to move relative to the at least one of the first or second shaft members between an unactuated position and an actuated position;
- an end effector assembly coupled to the pair of first and second shaft members and configured to move between an open configuration and a closed configuration in response to pivoting of the first and second shaft members;
- a knife selectively translatable through the first shaft member from a retracted position to an extended position in which the knife extends at least partially through the end effector assembly;
- a knife deployment mechanism including a crank having a first end portion coupled to the trigger and a second end portion operably coupled to the knife;
- a first biasing member coupled to the trigger and configured to resiliently bias the trigger toward the unactuated position;
- and
- a second biasing member disposed about the knife and configured to resiliently bias the knife toward the retracted position.
5 more elements
Dependencies are inferred from the claim text.