Circular stapling instrument
First Claim
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1. 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.
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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.
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Citations
13 Claims
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1. A method of stapling tissue comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification