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US 2026/0264227 A1Published application
Prosthetic limb apparatus and methods
OwnerErik J. SHAHOIAN, Steven SAVAS +4inventors
InventorsErik J. SHAHOIAN, Steven SAVAS, Joshua R. FUNAMURA, Eric M. MONSEF, Doug SATZGER, Tyler HAYES
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Abstract
Methods and apparatuses (devices, systems, etc.) for artificial limbs, including prosthetics and/or robotic arms. The methods and apparatuses described herein may be used as part of a powered prosthetic device to be worn by a user or they may be part of a robotic apparatus that may be operated remotely or automatically, even in the absence of a human operator.
Claims23
-73. (canceled)
A powered compact finger joint device, the device comprising:
- a motor;
- a nested dual-stage cycloidal reduction gear having a first cycloidal stage receiving input from motor, the first cycloidal stage having a first eccentric input shaft, a first cycloidal pinion, and a ring gear housing, wherein the first cycloidal pinion couples to a second cycloidal stage eccentric input shaft, wherein the second cycloidal stage eccentric input shaft couples to a second cycloidal stage pinion driving a floating ring gear within a cycloidal housing;
- and
- an output arm coupled to the floating ring gear and configured to move within an output channel through the cycloidal housing;
- wherein the nested dual-stage cycloidal reduction gear is configured to provide a gear reduction of between about 12:1 to about 25:1.
2 more elements
A robotic finger apparatus comprising, the apparatus comprising:
- a pair of powered compact finger joint devices connected in series, wherein each powered compact finger joint device comprises:
- a motor;
- a nested dual-stage cycloidal reduction gear having a first cycloidal stage receiving input from motor, the first cycloidal stage having a first eccentric input shaft, a first cycloidal pinion, and a ring gear housing, wherein the first cycloidal pinion couples to a second cycloidal stage eccentric input shaft, wherein the second cycloidal stage eccentric input shaft couples to a second cycloidal stage pinion driving a floating ring gear within a cycloidal housing;
- and
- an output arm coupled to the floating ring gear and configured to move within an output channel through the cycloidal housing, wherein the nested dual-stage cycloidal reduction gear is configured to provide a gear reduction of between about 12:1 to about 25:1;
- wherein a second of the pair of powered compact finger joint devices is rigidly coupled to an output platform, further wherein the output platform is pivotally coupled to a first of the pair of powered compact finger joint device so that the output arm is drives rotation of the output platform relative to the first powered compact finger joint device.
3 more elements
(canceled)
Dependencies are inferred from the claim text.