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US 2016/0242786 A1Published application
Circular Stapling Instrument
AssigneeCovidien LP
InventorChristopher Penna
Life of this patent
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Abstract
A circular stapling instrument including a stapling forming assembly that is actuated independently from actuation of the cutting assembly is provided. The instrument includes a handle assembly, an elongate body extending from the handle assembly, a cartridge assembly mounted on a distal end of the elongate body. The cartridge assembly includes a pusher assembly and a knife assembly. The knife assembly is selectively fixed relative to the pusher assembly.
Claims14
1-13. (canceled)
A method of stapling tissue comprising:
- advancing a pusher assembly of a circular loading unit a first distance to eject staples from a staple cartridge;
- retracting a pusher adapter of the pusher assembly a second distance to cause a compressible member to expand to lock the pusher adapter relative to a knife pusher;
- and
- advancing the pusher adapter the second distance to cut tissue, wherein the knife pusher prevents the compressible member from compressing.
1 more element
Dependencies are inferred from the claim text.