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US 2016/0242785 A1Published application
Spring loaded anvil retainer
AssigneeCovidien LP
InventorScott J. Prior
Life of this patent
Estimating the term…
Abstract
A surgical stapling device including a handle assembly, a body portion extending distally from the handle assembly, a head portion including an anvil retainer and a shell assembly, the anvil retainer being movable in relation to the shell assembly between unapproximated and approximated positions, a tube surrounding a portion of the anvil retainer, wherein the anvil retainer includes a distal annular protrusion for releasably engaging an anvil assembly and wherein the anvil assembly includes a center rod.
Claims21
1-18. (canceled)
An anvil retaining apparatus, comprising:
- an anvil retainer including a proximal portion configured to be operatively coupled to a surgical device, and a distal portion having a protrusion configured to be coupled to an anvil;
- and
- a tube disposed about the anvil retainer, wherein the tube is movable relative to and along the anvil retainer between a distal position, in which the protrusion is disposed within the tube, and a proximal position, in which a portion of the protrusion is disposed outside of the tube.
A surgical stapler, comprising:
- a handle assembly;
- a body portion extending distally from the handle assembly;
- an anvil assembly including:
- an anvil;
- an anvil retainer having a proximal portion configured to be operatively coupled to the handle assembly, and a distal portion having a protrusion for selective coupling to the anvil;
- and
- a tube disposed about the anvil retainer and movable relative to and along the anvil retainer between a distal position, in which the protrusion is disposed within the tube, and a proximal position, in which a portion of the protrusion is disposed outside of the tube;
- and
- a shell assembly coupled to the body portion, the anvil retainer being movable in relation to the shell assembly, in response to an actuation of the handle assembly, between an unapproximated position and an approximated position.
6 more elements
Dependencies are inferred from the claim text.