Back to results
US 2021/0330479 A1Published application
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.
Claims4
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
An apparatus for joining a terminal device to a prosthetic wrist unit comprising:
- an adapter having a receiving end and a keyed end;
- and
- a spindle configured to receive said keyed end of said adapter;
- and
- said adapter receiving end configured to receive a prosthetic terminal device;
- wherein
- said adapter may be affixed to a prosthetic terminal device and thus may engage with a prosthetic wrist by said keyed engagement between said adapter and said spindle.
4 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
- a 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.