Surgical stapler
First Claim
Patent Images
1. A surgical stapler comprising;
- a handle assembly;
an elongated body portion extending distally from the handle assembly; and
a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly, the anvil assembly being movable in relation to the shell assembly between spaced and approximated positions, the shell assembly including a fastener guide, the fastener guide having a central aperture, slots through which staples are ejected, and a plurality of radially spaced openings formed therein, the plurality of openings positioned between the central aperture and the slots, the anvil assembly having an anvil head and a plurality of projections extending proximally of the anvil head, the projections engageable with the plurality of openings of the fastener guide of the shell assembly, the plurality of openings aligned with respective projections of the anvil assembly.
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Abstract
A surgical stapler comprising a handle assembly, an elongated body portion extending distally from the handle assembly, and a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly. The anvil assembly is movable in relation to the shell assembly between spaced and approximated positions. The anvil assembly has an anvil head and a plurality of projections extending proximally of the anvil head, the projections engageable with a portion of the shell assembly.
1904 Citations
16 Claims
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1. A surgical stapler comprising;
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a handle assembly; an elongated body portion extending distally from the handle assembly; and a head portion disposed adjacent a distal portion of the elongated body portion and including an anvil assembly and a shell assembly, the anvil assembly being movable in relation to the shell assembly between spaced and approximated positions, the shell assembly including a fastener guide, the fastener guide having a central aperture, slots through which staples are ejected, and a plurality of radially spaced openings formed therein, the plurality of openings positioned between the central aperture and the slots, the anvil assembly having an anvil head and a plurality of projections extending proximally of the anvil head, the projections engageable with the plurality of openings of the fastener guide of the shell assembly, the plurality of openings aligned with respective projections of the anvil assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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- 11. An anvil assembly comprising an anvil head and a center rod extending from the anvil head, the center rod including a first annular engagement member configured to removably engage an anvil retainer of a surgical stapling device, and a plurality of projections extending proximally of the anvil head for engagement with a plurality of openings in the surgical stapling device, wherein the center rod includes a plurality of splines for alignment of the center rod with a shell assembly of a surgical stapling device, the projections terminating distally of the splines.
Specification