Adapter assembly with constant velocity joints
AssigneeCovidien LP
InventorJoseph T. Eisinger
Life of this patent
Estimating the term…
Abstract
A drive assembly for an adapter assembly of a surgical device includes an input shaft, a middle shaft, and an output shaft. The input shaft includes a proximal portion configured for operable engagement with a drive member of a handle assembly and a distal portion including a first castellated portion. The middle shaft includes a proximal portion having a first lobed portion in operable engagement with the first castellated portion of the input shaft, and a distal portion having a second lobed portion. The output shaft includes a proximal portion having a second castellated portion in operable engagement with the second lobed portion.
Claims18
A drive assembly for an adapter assembly of a surgical device, the drive assembly comprising:
- an input shaft having a distal portion including a first castellated portion;
- a middle shaft having a proximal portion and a distal portion, the proximal portion of the middle shaft including a first lobed portion in operable engagement with the first castellated portion of the input shaft, the distal portion of the middle shaft including a second lobed portion, wherein the first lobed portion and the second lobed portion each include three lobe members;
- and
- an output shaft having a proximal portion and a distal portion, the proximal portion of the output shaft including a second castellated portion in operable engagement with the second lobed portion.
An adapter assembly for connecting a handle assembly to an end effector, the adapter assembly comprising:
- a coupling assembly configured for operable connection with a handle assembly;
- a straight portion secured to the coupling assembly;
- a curved portion extending from the straight portion;
- and
- a drive assembly extending from the handle assembly through the curved portion, the drive assembly including:
- an input shaft having a distal portion including a first castellated portion;
- a middle shaft having a proximal portion and a distal portion, the proximal portion of the middle shaft including a first lobed portion in operable engagement with the first castellated portion of the input shaft, the distal portion of the middle shaft including a second lobed portion, wherein the first lobed portion and the second lobed portion of the drive assembly each include three lobe members;
- and
- an output shaft having a proximal portion and a distal portion, the proximal portion of the output shaft including a second castellated portion in operable engagement with the second lobed portion.
A surgical device comprising:
- a handle assembly;
- an adapter assembly secured to the handle assembly;
- an end effector secured to the adapter assembly;
- and
- a drive assembly extending from the handle assembly and positioned within the adapter assembly, the drive assembly including:
- an input shaft having a distal portion including a first castellated portion;
- a middle shaft having a proximal portion and a distal portion, the proximal portion of the middle shaft including a first lobed portion in operable engagement with the first castellated portion of the input shaft, the distal portion of the middle shaft including a second lobed portion, wherein the first lobed portion and the second lobed portion of the drive assembly each include three lobe members;
- and
- an output shaft having a proximal portion and a distal portion, the proximal portion of the output shaft including a second castellated portion in operable engagement with the second lobed portion.
Dependencies are inferred from the claim text.