Patent ID: 11871922
Assignee: COVIDIEN LP
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. An endoscopic stitching device, comprising:
a handle assembly including:
a main rod configured for axial displacement; and
a drive conversion assembly including:
a cam wheel;
a pivot block;
first and second links interconnecting the pivot block with the cam wheel;
a pawl operatively coupled to the main rod, the pawl configured to engage the pivot block to rotate the pivot block which, in turn, causes reciprocating displacement of the first and second links;
third and fourth links operatively coupled with the cam wheel; and
a pusher operatively coupled to the main rod, the pusher engaging the third link to exert force on the cam wheel; and

an elongate shaft assembly including:
first and second blade drive members; and
a tool assembly including:
first and second jaws operatively coupled with the main rod of the handle assembly; and
first and second blades slidably disposed in the respective first and second jaws, the first and second blades operatively coupled with the first and second blade drive members, respectively, wherein axial displacement of the main rod transitions the first and second jaws between open and closed positions and causes reciprocating axial displacement of the first and second blades.