Patent ID: 11864752
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A surgical stitching device comprising:
an arcuate suture needle;
a handle assembly including a housing, a pair of handles, and an axial rod slidably supported in the housing, the axial rod operatively coupled to the pair of handles such that actuation of the pair of handles cause axial displacement of the axial rod;
an elongate shaft assembly extending distally from the handle assembly, the elongate shaft assembly including an actuation rod operatively coupled to the axial rod for reciprocating displacement in an opposite direction, and an outer tube defining a lumen therethrough, the actuation rod slidably disposed in the lumen of the outer tube; and
a tool assembly including a jaw coupled to the actuation rod, the jaw including a recessed portion configured to engage a portion of the arcuate suture needle, the jaw being axially transitionable between a retracted configuration, in which, the recessed portion is in a proximal position to clamp the arcuate suture needle against the elongate shaft assembly and an advanced configuration, in which, the recessed portion is spaced apart from the elongate shaft assembly, the recessed portion has a first arcuate surface, a first planar surface proximal of the first arcuate surface, a second arcuate surface proximal of the first planar surface, and a second planar surface proximal of the second arcuate surface, wherein the first arcuate surface has a first radius of curvature and the second arcuate surface has a second radius of curvature different from the first radius of curvature.