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US 7,731,759 B2Granted
Control of a passive prosthetic knee joint with adjustable damping
AssigneeOtto Bock Healthcare GmbH
InventorsMartin Pusch, Sven Zarling, Herman Boiten
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Abstract
The invention relates to the control of a passive prosthetic knee joint with adjustable damping in the direction of flexion such that a prosthetic unit attached to the knee joint can be adapted for climbing stairs.
Claims12
A method for initiating and implementing a stair-climbing mode in a passive prosthetic knee joint connected to a prosthetic leg unit including a prosthetic foot comprising:
- detecting a low-torque lift of the prosthetic foot;
- initiating a lift phase, in which a flexion damping level of the knee joint is reduced to a level below that which is used for walking on level ground;
- detecting a placement of the prosthetic foot;
- and
- initiating a lowering phase, in which the flexion damping level is increased to a level above that which is used for walking on level ground.
2 more elements
Dependencies are inferred from the claim text.