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US 11,439,398 B2Granted
Release mechanism for linear surgical stapler
AssigneeCilag GmbH International
InventorsRyan J. Laurent, Michael J. Stokes, Matthew S. Corbin
Life of this patent
Estimating the term…
Abstract
An apparatus includes a handle assembly, an end effector, a firing assembly, and a release assembly. The handle assembly includes first and second arms and a latching lever. The end effector includes first and second jaws. The firing assembly is configured to sever tissue captured between the jaws. The release assemble is configured to urge the latching lever away from the first arm to pivot the second jaw from a fully closed position to a partially closed position.
Claims20
An apparatus, comprising:
- (a) a handle assembly, comprising:
- (i) a first arm,
- (ii) a second arm, wherein the second arm is configured to pivotally couple with the first arm at a proximal pivot location, and
- (iii) a latching member movably coupled with the first arm between an unlatched position and a latched position;
- (b) an end effector, comprising:
- (i) a first jaw extending distally from the first arm, and
- (ii) a second jaw extending distally from the second arm, wherein the latching member is configured to move from the unlatched position into the latched position to thereby pivot the second jaw relative to the first jaw from a partially closed configuration toward a fully closed configuration;
- (c) a firing assembly configured to staple and sever tissue captured between the first jaw and the second jaw in the fully closed configuration;
- and
- (d) a release assembly, comprising:
- (i) a driving body configured to actuate relative to the handle assembly between a first position and a second position while the latching member is in the latched position, and
- (ii) a driven body, wherein the driving body is configured to engage the driven body while actuating between the first position and the second position in order to drive the latching member from the latching position toward the unlatched position.
9 more elements
An apparatus, the apparatus comprising:
- (a) a first portion comprising:
- (i) a first handle, and
- (ii) a first jaw portion extending distally from the first handle;
- (b) a second portion configured to pivotally couple with the first portion at a proximal pivot location, the second portion comprising:
- (i) a second handle,
- (ii) a second jaw portion extending distally from the second handle, and
- (iii) a latching projection;
- (c) a latching member movably coupled with the first portion at a distal pivot location, wherein the latching member is configured to engage the latching projection and move from an unlatched position toward a latched position to thereby pivot the first jaw toward the second jaw from a partially closed position into a fully closed position;
- (d) a firing assembly configured to staple and sever tissue between the first jaw and the second jaw in the fully closed position;
- and
- (e) a release mechanism, comprising:
- a translating body configured to actuate between a first position and a second position, and
- (ii) a rotating body, wherein actuation of the translating body from the first position toward the second position is configured to drive rotation of the rotating body to thereby drive the latching member from the latching position toward the unlatched position.
10 more elements
An apparatus, the apparatus comprising:
- (a) a first portion comprising:
- (i) a first handle, and
- (ii) a first jaw portion extending distally from the first handle;
- (b) a second portion configured to pivotally couple with the first portion at a proximal pivot location, the second portion comprising:
- (i) a second handle,
- (ii) a second jaw portion extending distally from the second handle, and
- (iii) a latching projection;
- (c) a latching member movably coupled with the first portion at a distal pivot location, wherein the latching member is configured to engage the latching projection and move from an unlatched position toward a latched position to thereby pivot the first jaw toward the second jaw from a partially closed position into a fully closed position;
- (d) a firing assembly configured to staple and sever tissue between the first jaw and the second jaw in the fully closed position;
- and
- (e) a release mechanism configured to actuate between a first position and a second position to generate a driving force to drive the latching lever from the latching position toward the unlatched position.
8 more elements
Dependencies are inferred from the claim text.