End effector of a surgical robotic manipulator
First Claim
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1. An end effector of comprising:
- a nose tube;
a cutting accessory including a shaft extending along an axis;
an axial connector releasably locking said cutting accessory to said nose tube along said axis;
a drive member coupled to said cutting accessory to rotatably drive said shaft of said cutting accessory;
an actuator coupled to said drive member to rotatably drive said drive member;
a plurality of rollers disposed about said shaft of said cutting accessory to frictionally engage said shaft;
a cage extending along said axis and supporting said rollers in a spaced relationship from each other to receive said shaft of said cutting accessory; and
a wedge sleeve fixed to said drive member and rotatable with said drive member relative to said plurality of rollers, said wedge sleeve presenting contact surfaces configured to selectively contact said rollers to pinch said rollers against said shaft and rotationally lock said shaft to said drive member.
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Abstract
An end effector of a surgical robotic manipulator includes a removeable cutting accessory. The cutting accessory includes a cutting tip and a shaft extending along an axis. A drive member is configured to rotatably drive the shaft of the cutting accessory. An actuator is coupled to the drive member for rotatably driving the drive member. A clutch assembly is supported by and is selectively rotatable relative to the drive member and receives the shaft of the cutting accessory along the axis of the shaft for selectively locking the shaft to the drive member.
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Citations
16 Claims
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1. An end effector of comprising:
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a nose tube; a cutting accessory including a shaft extending along an axis; an axial connector releasably locking said cutting accessory to said nose tube along said axis; a drive member coupled to said cutting accessory to rotatably drive said shaft of said cutting accessory; an actuator coupled to said drive member to rotatably drive said drive member; a plurality of rollers disposed about said shaft of said cutting accessory to frictionally engage said shaft; a cage extending along said axis and supporting said rollers in a spaced relationship from each other to receive said shaft of said cutting accessory; and a wedge sleeve fixed to said drive member and rotatable with said drive member relative to said plurality of rollers, said wedge sleeve presenting contact surfaces configured to selectively contact said rollers to pinch said rollers against said shaft and rotationally lock said shaft to said drive member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An end effector comprising:
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a nose tube to receive a shaft of a cutting accessory; an axial connector configured to releasably lock the cutting accessory to said nose tube; a drive member to rotatably drive the shaft of the cutting accessory when the shaft is present in said nose tube; an actuator coupled to said drive member to rotatably drive said drive member; a plurality of rollers arranged to be disposed about the shaft of the cutting accessory to frictionally engage the shaft when the shaft is present in said nose tube; a cage supporting said rollers in a spaced relationship from each other to receive the shaft of the cutting accessory; and a wedge sleeve fixed to said drive member and rotatable with said drive member relative to said plurality of rollers, said wedge sleeve presenting contact surfaces configured to selectively contact said rollers to pinch said rollers against the shaft and rotationally lock the shaft to said drive member when the shaft is present in said nose tube. - View Dependent Claims (14, 15, 16)
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Specification