Patent ID: 9585714
Date: 2017-03-07
CPC Classifications: A61B

Claim:
1. A surgical apparatus for cutting tissue, the surgical apparatus comprising: first and second jaws configured for grasping the tissue of a patient, each of the first and second jaws including a pivot hole and a linkage hole; a fixed handle portion; a cylindrical tube including a proximal end, a distal end, and an interior space defining a longitudinal axis, the proximal end of the cylindrical tube being supported by the fixed handle portion; a connecting component including a first pin and a second pin, the first pin and the second pin disposed on opposite sides of the connecting component and aligned perpendicularly to the longitudinal axis; a movable handle portion including a clevis top, the clevis top including a first cavity and a second cavity, the first cavity aligned parallel to the longitudinal axis and receiving at least a portion of the connecting component, the second cavity aligned perpendicularly to the longitudinal axis and receiving the first pin and the second pin of the connecting component; a clevis component including a proximal end, a distal end, and a slot extending inward from the distal end of the clevis component, the proximal end of the clevis component being supported by the distal end of the cylindrical tube, the slot separating the distal end of the clevis component into a pair of legs, the clevis component further including a clevis hole extending through the pair of legs; a clevis pin including a clevis pin hole extending transverse through the clevis pin, the clevis pin being inserted through the pivot hole of each of the first and second jaws and through the clevis hole that extends through the pair of legs of the clevis component; a shaft including a proximal end, a distal end, a conduit extending through the shaft parallel to the longitudinal axis, and a shaft hole adjacent to the distal end of the shaft and extending transversely through the shaft, the shaft being at least partially disposed within the interior space of the cylindrical tube, the proximal end of the shaft being operatively connected to the connecting component; first and second links, each of the first and second links including first and second link holes; first and second link pins, the first link pin inserted through the first link hole of the first link and through the linkage hole of the first jaw, the first link pin configured for pivotably linking the first link with the first jaw, the second link pin inserted through the first link hole of the second link and through the linkage hole of the second jaw, the second link pin configured for pivotably linking the second link with the second jaw; a shaft pin including a shaft pin hole, the shaft pin inserted through the shaft hole of the shaft and through the second link holes of each of the first and second links, the shaft pin configured for pivotably linking the first and second links with the shaft; a rigid linear wire including a proximal end, a distal end, and a generally circular cross-section, the rigid linear wire configured to move in a reciprocating manner parallel to the longitudinal axis; a knob directly connected to the proximal end of the rigid linear wire, the entire knob configured to move in a reciprocating manner parallel to the longitudinal axis; and a blade including a straight cutting edge, the blade disposed distally beyond the clevis pin and directly connected to the distal end of the rigid linear wire, the blade movable in a reciprocating manner parallel to the longitudinal axis; wherein movement of the movable handle portion with respect to the fixed handle portion operatively moves the shaft in a reciprocating manner parallel to the longitudinal axis, and wherein movement of the shaft in a proximal direction operatively moves the first and second jaws toward a grasping position for grasping the tissue of the patient; wherein, in response to the entire knob being moved in a distal direction parallel the longitudinal axis, the rigid linear wire is configured to move the blade to cut the tissue of the patient.