Back to results
US 2022/0031345 A1Published application
Surgical instruments with double spherical articulation joints with pivotable links
AssigneeCilag GmbH International
InventorSpencer J. Witte
Life of this patent
Estimating the term…
Abstract
Surgical instruments with articulation joints that include an articulation linkage assembly comprising a plurality of links configured to operably interface with a proximal joint member for movable travel relative thereto in a first proximal travel path and a second proximal travel path that are transverse to each other. The plurality of links are further configured to operably interface with a distal joint member for movable travel relative thereto in a first distal travel path and a second distal travel path that are transverse each other.
Claims20
A surgical instrument, comprising:
- a shaft assembly, wherein said shaft assembly defines a shaft axis;
- a surgical end effector, wherein said surgical end effector defines an end effector axis, wherein said surgical end effector is coupled to said shaft assembly by an articulation joint configured to facilitate articulation of said surgical end effector relative to said shaft assembly in an articulation plane between an unarticulated position wherein said end effector axis is axially aligned with said shaft axis and articulated positions wherein said end effector axis is not axially aligned with said shaft axis, wherein said articulation joint comprises:
- a proximal joint member coupled to said shaft assembly;
- a distal joint member coupled to said surgical end effector;
- and
- an articulation linkage assembly comprising a plurality of links, wherein each said link is configured to operably interface with said proximal joint member for movable travel relative thereto in a first proximal travel path and a second proximal travel path that is transverse to said first proximal travel path, and wherein each said link is configured to operably interface with said distal joint member for movable travel relative thereto in a first distal travel path and a second distal travel path that is transverse to said first distal travel path, wherein said articulation linkage assembly defines a central passage extending between said plurality of links, and wherein said surgical instrument further comprises:
- a drive member extending through said proximal joint member, said central passage and said distal joint member to operably interface with said surgical end effector;
- and
- at least two flexible actuator members spanning said articulation joint and operably interfacing with said distal joint member to apply articulation motions thereto.
6 more elements
A surgical instrument, comprising:
- a shaft assembly, wherein said shaft assembly defines a shaft axis;
- a surgical end effector, wherein said surgical end effector defines an end effector axis, wherein said surgical end effector is coupled to said shaft assembly by an articulation joint configured to facilitate articulation of said surgical end effector relative to said shaft assembly in an articulation plane between an unarticulated position wherein said end effector axis is axially aligned with said shaft axis in said articulation plane and articulated positions wherein said end effector axis is not axially aligned with said shaft axis, wherein said articulation joint comprises:
- a proximal joint member coupled to said shaft assembly;
- a distal joint member coupled to said surgical end effector;
- and
- an articulation linkage assembly comprising:
- a first link configured to operably interface with said proximal joint member for movable travel relative thereto in a first proximal travel path and another first proximal travel path that is transverse to said first proximal travel path, and wherein said first link is configured to operably interface with said distal joint member for movable travel relative thereto in a first distal travel path and another first distal travel path that is transverse to said first distal travel path;
- a second link configured to operably interface with said proximal joint member for movable travel relative thereto in a second proximal travel path and another second proximal travel path that is transverse to said second proximal travel path, and wherein said second link is configured to operably interface with said distal joint member for movable travel relative thereto in a second distal travel path and another second distal travel path that is transverse to said second distal travel path;
- and
- a third link configured to operably interface with said proximal joint member for movable travel relative thereto in a third proximal travel path and another third travel path that is transverse to said third proximal travel path, and wherein said third link is configured to operably interface with said distal joint member for movable travel relative thereto in a third distal travel path and another third distal travel path that is transverse to said third distal travel path, wherein said surgical instrument further comprises at least two flexible actuator members, and wherein said at least two flexible actuator members span said articulation joint and operably interface with said distal joint member to apply articulation motions thereto.
7 more elements
Dependencies are inferred from the claim text.