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US 2020/0138463 A1Published application
Apparatus for endoscopic procedures
AssigneeCovidien LP
InventorsStanislaw KOSTRZEWSKI, Ernest ARANYI, Paul A. SCIRICA
Life of this patent
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Abstract
An electromechanical surgical system having an instrument housing for connecting with a shaft assembly, a shaft assembly, and an end effector. The end effector is an articulating end effector and the system includes a cable tensioning system for tensioning the articulation cables. The system includes a clutch mechanism for preventing slippage of a drive cable.
Claims21
1-15. (canceled)
A shaft assembly for interconnecting a surgical instrument and an end effector, comprising:
- an elongate body;
- a neck assembly coupled to a distal end portion of the elongate body;
- first and second racks longitudinally movable relative to the neck assembly;
- and
- first and second articulation cables each having a proximal portion and a distal portion, the proximal portion of the first cable coupled to the first rack and the proximal portion of the second cable coupled to the second rack, the distal portion of each of the first and second cables anchored to the neck assembly such that longitudinal movement of the first and second racks effects an articulation of the neck assembly.
2 more elements
An articulating shaft assembly for supporting a surgical end effector, comprising:
- an elongate body;
- an articulating neck assembly coupled to a distal end portion of the elongate body and including:
- a proximal neck housing extending distally from the distal end portion of the elongate body;
- a plurality of links coupled to the proximal neck housing;
- and
- a distal neck housing coupled to a distal end portion of the plurality of links, the distal neck housing being configured to couple to an end effector;
- first and second racks extending within and being longitudinally movable relative to the articulating neck assembly;
- and
- first and second articulation cables each having a proximal portion and a distal portion, the proximal portion of the first cable coupled to the first rack and the proximal portion of the second cable coupled to the second rack, wherein the distal portion of each of the first and second cables is axially fixed to the distal neck housing such that longitudinal movement of the first and second racks effects an articulation of the distal neck housing relative to the proximal neck housing about the plurality of links.
6 more elements
Dependencies are inferred from the claim text.