Apparatus for performing an electrosurgical procedure
AssigneeCovidien LP
InventorsGlenn A. Horner, James D. Allen, IV
Life of this patent
Estimating the term…
Abstract
A surgical instrument is provided and includes a housing having a shaft. An end effector assembly is operatively connected to a distal end of the shaft and has a pair of first and second jaw members that are movable relative to one another. A drive assembly operably couples to a handle assembly associated with the housing and is configured to impart movement of a respective jaw member when the handle assembly is actuated. A spring component operably associated with each of the jaw members is configured to provide a sealing force at the jaw members.
Claims11
An electrosurgical tissue sealing device, comprising:
- a housing;
- a shaft extending from the housing and defining a longitudinal axis;
- a first jaw member and a second jaw member coupled to a distal end of the shaft, at least one of the first jaw member or the second jaw member being movable between an open position and a clamped position;
- one or more cables extending through the shaft, the one or more cables configured to impart movement to at least one of the first jaw member or the second jaw member;
- a center link coupled to a distal end of the one or more cables;
- and
- a cam pin extending from the center link and disposed within a cam slot defined by the first jaw member or the second jaw member, wherein longitudinal movement of the one or more cables causes the cam pin to translate within the cam slot to move at least one of the first jaw member or the second jaw member between the open position and the clamped position.
An electrosurgical tissue sealing device, comprising:
- a housing;
- a shaft extending from the housing and defining a longitudinal axis;
- a first jaw member and a second jaw member coupled to a distal end of the shaft, the first jaw member defining a first cam slot, the second jaw member defining a second cam slot, and at least one of the first jaw member or the second jaw member being movable between an open position and a clamped position;
- one or more elongate drive members extending from the housing through the shaft, the one or more elongate drive members configured to move longitudinally within the shaft to impart movement to at least one of the first jaw member or the second jaw member;
- a center link coupled to a distal end of the one or more elongate drive members;
- and
- a first cam pin and a second cam pin extending from the center link, the first cam pin being disposed within the first cam slot and the second cam pin being disposed within the second cam slot, wherein longitudinal movement of the two elongate drive members within the shaft causes the first cam pin to translate within the first cam slot and the second cam pin to translate within the second cam slot to move at least one of the first jaw member or the second jaw member between the open position and the clamped position.
Dependencies are inferred from the claim text.