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US 9,855,040 B2Granted
Surgical stapling loading unit having articulating jaws
AssigneeCovidien LP
InventorStanislaw Kostrzewski
Life of this patent
Estimating the term…
Abstract
An end effector includes first and second jaw members that are pivotable relative to one another between open and clamped configurations about a pivot axis. The first and second jaw members each define a pivot hole which defines the pivot axis. The first and second jaw members also each define an articulation axis that is orthogonal to the pivot axis and position distal of the pivot axis. The first and second jaw members are articulatable about the articulation axis between straight and fully articulated configurations.
Claims24
An end effector comprising:
- a first jaw member including:
- a first camming member defining a first rotation hole and a first pivot hole;
- a first body having a first proximal tab defining a first rotation opening and a first articulation opening;
- and
- a first coupling member having a first rotation post and a first articulation post, the first rotation post inserted in the first rotation hole and the first rotation opening, the first articulation post positioned within the first articulation opening;
- a second jaw member including:
- a second camming member defining a second rotation hole and a second pivot hole;
- a second body having a second proximal tab defining a second rotation opening and a second articulation opening;
- and
- a second coupling member having a second rotation post and a second articulation post, the second rotation post inserted in the second rotation hole and the second rotation opening, the second articulation post positioned within the second articulation opening;
- and
- a pivot pin positioned in the first and second pivot holes, the first and second jaw members pivotable relative to one another between an open configuration and a clamped configuration about the pivot pin in a parallel manner, the first and second bodies articulatable relative to the first and second camming members about the first and second articulation posts.
9 more elements
A loading unit comprising:
- an end effector including:
- a first jaw member having:
- a first camming member defining a first rotation hole and a first pivot hole, the first rotation hole orthogonal to and distal of the first pivot hole;
- a first body having a first proximal tab defining a first rotation opening and a first articulation opening;
- and
- a first coupling member having a first rotation post and a first articulation post, the first rotation post inserted in the first rotation hole and the first rotation opening, the first articulation post positioned within the first articulation opening;
- a second jaw member having:
- a second camming member defining a second rotation hole and a second pivot hole, the second rotation hole orthogonal to and distal of the second pivot hole;
- a second body having a second proximal tab defining a second rotation opening and a second articulation opening;
- and
- a second coupling member having a second rotation post and a second articulation post, the second rotation post passing through the second rotation hole and the second rotation opening, the second articulation post positioned within the second articulation opening;
- and
- a pivot pin positioned in the first and second pivot holes;
- and
- a housing including:
- a connector positioned at a proximal end of the housing, the connector configured to couple the loading unit to a surgical instrument, the housing defining a longitudinal axis;
- a clamping mechanism operatively associated with the first and second camming members to pivot the first and second jaw members relative to one another about the pivot pin between an open configuration and a clamped configuration;
- and
- an articulation mechanism operatively associated with the first and second coupling members to articulate the first and second bodies about the first and second articulation posts between a straight configuration and a fully articulated configuration.
16 more elements
Dependencies are inferred from the claim text.