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US 12,508,022 B2Granted
Surgical stapler with toggling distal tip
AssigneeCilag GmbH International
InventorsJeffery D. Bruns, Nicholas Fanelli, Robert J. Simms, Scott A. Jenkins
Life of this patent
Estimating the term…
Abstract
A surgical instrument end effector includes a first jaw configured to receive a staple cartridge and a second jaw that includes an anvil having a plurality of staple forming pockets. The first and second jaws are operable to clamp and staple tissue positioned therebetween. A tip member is movably disposed at a distal end of the anvil and is configured to toggle relative to the anvil between a first discrete position and a second discrete position. The tip member in the first discrete position is oriented angularly toward the first jaw, and the tip member in the second discrete position is oriented angularly away from the first discrete position.
Claims26
A surgical stapling device comprising:
- a shaft having a proximal portion and a distal portion;
- and
- an end effector including:
- a first jaw configured to receive a staple cartridge;
- a second jaw defining a longitudinal axis and comprising an anvil including a proximal portion and a distal portion, the first jaw pivotably coupled to the second jaw at a proximal end thereof such that the end effector is moveable from an open position, with the first and second jaws being non-parallel to each other, to a clamped position;
- a tip having a proximal portion and a distal portion and having a thickness that decreases towards the distal portion of the tip, the tip being movably coupled to a distal end of the second jaw for movement, independent of the open or clamped position of the end effector, between a first position substantially aligned with the longitudinal axis and a second position defining an acute angle with the longitudinal axis;
- and
- wherein the distal end of the second jaw is engaged with the tip to releasably retain the tip in one of the first or second positions.
5 more elements
An anvil assembly comprising:
- an anvil defining a longitudinal axis and having a plurality of staple forming pockets formed therein, the anvil including a distal portion distal to the staple forming pockets;
- a tip having a proximal portion, a distal portion, and a body having a thickness that decreases towards the distal portion of the tip and having no staple forming pockets, the tip being movably coupled to the distal portion of the anvil for movement about an axis transverse to the longitudinal axis of the anvil between a first position substantially aligned with the longitudinal axis and a second position defining an acute angle with the longitudinal axis;
- and
- wherein the distal portion of the anvil is engaged with the tip to releasably retain the tip in one of the first or second positions independent of a position of the anvil relative to an opposing jaw.
1 more element
An end effector for a surgical stapling device comprising:
- a first jaw configured to receive a staple cartridge;
- a second jaw comprising an anvil including a proximal portion and a distal portion, the first jaw pivotably coupled to the second jaw at the proximal portion such that the first and second jaws are moveable from an open position, with the first and second jaws being non-parallel to each other, to a clamped position about an axis perpendicular to a longitudinal axis defined by the second jaw;
- a tip having a proximal portion and a distal portion and having a thickness that decreases towards the distal portion of the tip, the tip being pivotably coupled to the distal portion of the second jaw for movement, independent of the open or clamped position of the first and second jaws, between a first position substantially aligned with the longitudinal axis and a second position defining an acute angle with the longitudinal axis;
- and
- wherein the distal portion of the second jaw is engaged with the tip to releasably retain the tip in one of the first or second positions.
2 more elements
A surgical stapling device comprising:
- a shaft having a proximal portion and a distal portion;
- and
- an end effector including:
- a first jaw configured to receive a staple cartridge;
- a second jaw defining a longitudinal axis and comprising an anvil including a proximal portion and a distal portion, the first jaw pivotably coupled to the second jaw at a proximal end thereof such that the end effector is moveable from an open position, with the first and second jaws being non-parallel to each other, to a clamped position;
- a tip having a proximal portion and a distal portion and having a thickness that decreases towards the distal portion of the tip, the tip being movably coupled to a distal end of the second jaw for movement, independent of the open or clamped position of the end effector, between a first position substantially aligned with the longitudinal axis and a second position defining an acute angle with the longitudinal axis;
- and
- means for retaining, engaged with the tip, to releasably retain the tip in one of the first or second positions.
5 more elements
Dependencies are inferred from the claim text.