Patent ID: 7871423

Claim:
A body assembly ( 42 ) of surgical forceps ( 40 ) for retaining an adapter ( 58 ) of a tube assembly ( 46 ) having a plurality of locking grooves ( 62 ) defined circularly around the tube assembly ( 46 ), said body assembly ( 42 ) comprising; a housing ( 134 ) having an axial bore ( 140 ) with a circular cross section, said housing ( 134 ) including a top surface ( 96 ) with said top surface ( 96 ) defining a transverse bore ( 148 ) extending along a locking axis (BB) and opening to said axial bore ( 140 ), said housing ( 134 ) defining a lateral bore ( 160 ) extending along a plunger axis (AA) with said lateral bore ( 160 ) intersecting said transverse bore ( 148 ), a lock ( 150 ) disposed in said transverse bore ( 148 ) and including a locking contact ( 156 ), and a locking pin ( 154 ) spaced axially from said locking contact ( 156 ), said locking pin ( 154 ) engagable with one of the locking grooves ( 62 ), and a plunger ( 166 ) including a plunger shaft ( 168 ) with said plunger shaft ( 168 ) disposed in said lateral bore ( 160 ) and intersecting said transverse bore ( 148 ), said plunger shaft ( 168 ) including a plunger ramp ( 174 ) sloping relative to said plunger axis (AA) and slidably interfacing with said locking contact ( 156 ) of said lock ( 150 ), wherein said plunger shaft ( 168 ) imparts a force on said locking contact ( 156 ) when said plunger ( 166 ) is pushed along said plunger axis (AA) to thereby move said locking pin ( 154 ) along said locking axis (BB) and disengage said locking pin ( 154 ) from the locking groove ( 62 ) and allow the tube assembly ( 46 ) to be rotated within the axial bore ( 140 ), and said plunger shaft ( 168 ) defining a slot ( 177 ) wherein said locking pin ( 154 ) of said lock ( 150 ) extends through said slot ( 177 ).