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US 12,622,792 B2Granted
Prosthetic wrist
OwnerManuel Reyesinventor
Life of this patent
Estimating the term…
Abstract
A prosthetic wrist for terminal devices preserves free rotation under high rotational or axial loads.
Claims3
A prosthetic wrist comprising:
- a thrust bearing;
- and
- a locking ring gear having a bottom surface and a top surface;
- and
- said thrust bearing rotationally engaged with said bottom surface of said locking ring gear;
- and
- a tapered bearing having an inner race and an outer race, engaged with said top surface of said locking ring gear;
- and
- a spindle rotationally engaged with said tapered-bearing inner race;
- and
- a housing rotationally engaged with said tapered-bearing outer race;
- and
- at least one interference mechanism configured to lock said locking ring gear in a radial position;
- wherein
- a prosthetic terminal device fitted into said spindle may be rotated under load while said interference mechanism is not engaged with said locking ring gear, and is held in a fixed radial position when said interference mechanism is engaged with said locking ring gear.
12 more elements
A prosthetic wrist comprising:
- a first housing portion rotationally engaged with a thrust bearing;
- and
- a locking ring gear having a bottom surface and a top surface;
- and
- said thrust bearing rotationally engaged with said bottom surface of said locking ring gear;
- and
- a tapered bearing having an inner race and an outer race, engaged with said top surface of said locking ring gear;
- and
- a spindle rotationally engaged with said tapered bearing inner race and fixedly engaged with said locking ring gear;
- and
- a second housing portion rotationally engaged with said tapered bearing outer race;
- and
- said first housing portion and said second housing portion fixedly engaged;
- and
- at least one interference mechanism;
- and
- at least one spring engaged with said at least one interference mechanism;
- and
- a linkage movable in at least a first direction and a second direction, and movably engaged with said interference mechanism, configured to move said interference mechanism against said at least one spring to engage with said locking ring gear;
- and
- an adapter having a receiving end and a keyed end;
- and
- said spindle configured to receive said keyed end of said adapter;
- and
- said adapter receiving end configured to receive a prosthetic hand;
- wherein
- the prosthetic hand fitted into said adapter and said spindle may be rotated under load while said interference mechanism is not engaged with said locking ring gear, and is held in a fixed radial position when said interference mechanism is engaged with said locking ring gear.
24 more elements
Dependencies are inferred from the claim text.