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US 2022/0186815 A1Published application
Handle assemblies for hand-held surgical instruments
AssigneeCovidien LP
InventorDavid A. Nicholas
Life of this patent
Estimating the term…
Abstract
A handle assembly includes a single-motor transmission assembly for actuating various functions of an attached end effector.
Claims20
A transmission assembly for use in a hand-held surgical instrument, the transmission assembly comprising:
- a housing;
- a main drive motor supporting a main drive gear;
- first and second output gears operably coupled to the main drive gear and configured to rotate in response to a rotation of the main drive gear;
- first and second output shafts rotatably supported in the housing;
- and
- a selector cam associated with the first and second output shafts, wherein the selector cam is configured to move between a first position, in which the selector cam non-rotatably couples the first output shaft to the first output gear and the second output gear is rotatable relative to the second output shaft, and a second position, in which the selector cam non-rotatably couples the second output shaft to the second output gear and the first output gear is rotatable relative to the first output shaft.
3 more elements
A handle assembly for operating a surgical end effector, the handle assembly comprising:
- a handle housing having a barrel portion, and a handle portion extending from the barrel portion;
- and
- a transmission assembly supported in the barrel portion of the handle housing and including:
- a main drive motor having a main drive gear;
- first, second, and third output shafts;
- first, second, and third output gears operably coupled to the main drive gear and configured to rotate in response to a rotation of the main drive gear;
- a selector cam;
- and
- a selector motor operably coupled to the selector cam and configured to move the selector cam relative to the first, second, and third output shafts between a first position, in which the first output shaft is non-rotatably coupled to the first output gear, a second position, in which the second output shaft is non-rotatably coupled to the second output gear, and a third position in which the third output shaft is non-rotatably coupled to the third output gear.
6 more elements
Dependencies are inferred from the claim text.