Compact jaw including split pivot pin
First Claim
1. An end effector assembly comprising:
- a pair of jaw members, at least one of the pair of jaw members moveable about a pivot between an open position and a closed position relative to the other jaw member for grasping tissue, the pivot including first and second sections and defining a passage between the first and second sections;
a knife blade supported between the pair of jaw members distal to the pivot and coupled to an actuation shaft, the actuation shaft slidably translatable through the passage of the pivot to advance the knife blade;
a cam pin coupled to at least one of the pair of jaw members to move the at least one jaw member upon selective longitudinal translation of the cam pin through a cam slot defined in at least one of the pair of jaw members; and
a knife tube mounted to the pivot, the cam pin slidably engaged with the knife tube, the first and second sections of the pivot being engageable with a recess defined by the knife tube.
2 Assignments
0 Petitions
Accused Products
Abstract
An end effector assembly for use with a forceps includes a pair of jaw members, a knife assembly, and one or more cam assemblies. One or more of the jaw members are moveable relative to the other about a pivot between open and closed positions. One or more of the jaw members include a knife channel. The pivot includes first and second sections defining a passage therebetween. The knife assembly includes a knife blade and an actuation shaft. The knife blade is disposed distally relative to the pivot. The actuation shaft is configured for slidable translation through the passage to allow selective advancement of the knife blade through the knife channel. The one or more cam assemblies are operably coupled to the one or more moveable jaw members and are actuatable to move the one or more jaw members between the open and closed positions for grasping tissue therebetween.
191 Citations
10 Claims
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1. An end effector assembly comprising:
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a pair of jaw members, at least one of the pair of jaw members moveable about a pivot between an open position and a closed position relative to the other jaw member for grasping tissue, the pivot including first and second sections and defining a passage between the first and second sections; a knife blade supported between the pair of jaw members distal to the pivot and coupled to an actuation shaft, the actuation shaft slidably translatable through the passage of the pivot to advance the knife blade; a cam pin coupled to at least one of the pair of jaw members to move the at least one jaw member upon selective longitudinal translation of the cam pin through a cam slot defined in at least one of the pair of jaw members; and a knife tube mounted to the pivot, the cam pin slidably engaged with the knife tube, the first and second sections of the pivot being engageable with a recess defined by the knife tube. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A forceps, comprising:
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a housing having a shaft that extends therefrom, the shaft including a support clevis at a distal end thereof; a pair of jaw members mounted to the support clevis about a pivot, at least one jaw member moveable relative to the other about the pivot between an open position and a closed position for grasping tissue, the pivot having first and second sections defining a passage therebetween; a knife blade disposed distally relative to the pivot; an actuation shaft secured to the knife blade and configured for slidable translation through the passage defined between the first and second sections of the pivot to allow selective advancement of the knife blade; an actuator clevis including at least one cam pin extending therefrom, at least one of the pair of jaw members defining at least one cam slot configured to slidably receive the at least one cam pin to move the at least one moveable jaw member, the longitudinal translation of the actuator clevis moving the at least one movable jaw member between the open position and the closed position; and a knife tube supporting the actuation shaft and defining a recess adapted to receive the ends of the first and second sections of the pivot, the at least one cam pin configured to slide along an outer surface of the knife tube upon longitudinal translation of the actuator clevis. - View Dependent Claims (8, 9, 10)
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Specification