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US 11,589,879 B2Granted
Disposable integrated speed reduction and gearless high torque device
AssigneeECA Medical Instruments
InventorJohn Nino
Life of this patent
Estimating the term…
Abstract
An integrated disposable rotational speed reduction assembly having a shaft assembly, a housing, an output assembly, and a plurality of planetary gears each having a plurality of gear teeth. The shaft assembly is configured to cause rotation of the planetary gears with a sun gear. The rotation of the planetary gears is configured to cause rotation of an output shaft, with a reduction of rotational speed relative to the rotation of the shaft assembly.
Claims26
A single use in-line speed reduction torque-limiting assembly comprising:
- a shaft assembly comprising a drive shaft and a sun gear attached to said drive shaft;
- a housing;
- a plurality of planetary gears each having a plurality of gear teeth;
- an output assembly;
- and,
- an undulated torque-limiting assembly with a shaped channel for receiving a tool;
- wherein one or more of said plurality of planetary gears and said plurality of gear teeth on each said planetary gear are non-metal;
- and,
- wherein said one or more of said non-metal teeth are frangible after a predetermined number of use cycles of said non-metal teeth.
6 more elements
The single use in-line speed reduction torque-limiting assembly of claim wherein:
- said first torque-limiting interface comprises a first plurality of undulations arranged around an axial bore and separated by a first plurality of transition regions;
- said second torque-limiting interface comprises a second plurality of undulations arranged around a drive socket and separated by a second plurality of transition regions, the first and second pluralities being equal in number;
- and
- each undulation comprises an upslope, a peak, and a downslope.
1 more element
Dependencies are inferred from the claim text.