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US 2020/0046363 A1Published application
Friction reduction mechanisms for handle assemblies
AssigneeCovidien LP
InventorsJacob C. Baril, Brian J. Creston, Matthew A. Dinino, Matthew Malavenda, Thomas A. Zammataro
Life of this patent
Estimating the term…
Abstract
A handle assembly for actuating of a surgical end effector is provided. The handle assembly includes a friction reducing mechanism. The friction reducing mechanism may be mounted within a housing of the handle assembly and engage a drive member of the handle assembly. Alternatively, the friction reducing mechanism may be disposed on the drive member. The friction reducing mechanism instead or also includes a bearing member disposed between a trigger member and the housing of the handle assembly.
Claims13
A handle assembly, comprising:
- a housing defining a longitudinal axis;
- a trigger member operably coupled to the housing;
- a drive member movable within the housing along the longitudinal axis;
- a linkage assembly operably disposed within the housing and connecting the trigger to the drive member;
- and
- a friction reducing mechanism operably disposed within the housing relative to the drive member, the friction reducing mechanism including first and second bearing assemblies, each of the bearing assemblies including a sleeve rotatably disposed within the housing and configured to facilitate movement of the drive member.
3 more elements
A handle assembly, comprising:
- a housing defining a longitudinal axis;
- a trigger member operably coupled to the housing;
- a drive member movable within the housing along the longitudinal axis;
- a linkage assembly operably disposed within the housing and connecting the trigger to the drive member;
- and
- a friction reducing mechanism operably secured to the drive member, the friction reducing mechanism including a bearing assembly having first and second outer bearing sleeves and first and second inner bearing sleeves disposed within the respective first and second outer bearing sleeves and rotatably supported on a pivot pin, wherein the first and second outer bearing sleeves engage the housing to facilitate movement of the drive member.
3 more elements
Dependencies are inferred from the claim text.