Actuated leg prosthesis for above-knee amputees
AssigneeVicthom Human Bionics Inc.
InventorsStephane Bedard, Pierre-Olivier Roy
Life of this patent
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Abstract
The actuated leg prosthesis comprises a knee member, a socket connector provided over the knee member, an elongated trans-tibial member having a bottom end under which is connected an artificial foot, and a linear actuator. A first pivot assembly allows to operatively connect the trans-tibial member to the knee member. A second pivot assembly allows to operatively connect an upper end of the actuator to the knee member. A third pivot assembly allows to operatively connect a bottom end of the actuator to the bottom end of the trans-tibial member. The prosthesis can be provided as either a front actuator configuration or a rear actuator configuration.
Claims22
An actuated leg prosthesis for above-knee amputees, the prosthesis comprising:
- a knee member;
- first means for connecting a socket over the knee member;
- an elongated trans-tibial member having an upper end and a bottom end, the trans-tibial member defining a main longitudinal axis;
- second means for connecting an artificial foot under the bottom end of the trans-tibial member;
- a linear actuator having an upper end and a bottom end;
- third means for operatively connecting the trans-tibial member to the knee member;
- fourth means for operatively connecting the upper end of the actuator to the knee member;
- and
- fifth means for operatively connecting the bottom end of the actuator to the bottom end of the trans-tibial member.
An actuated leg prosthesis for above-knee amputees, the prosthesis comprising:
- a knee member;
- a socket connected over the knee member;
- an elongated trans-tibial member having an upper end and a bottom end, the trans-tibial member defining a main longitudinal axis;
- an artificial foot connected under the bottom end of the trans-tibial member, the artificial foot defining a front side and a rear side of the prosthesis;
- a linear actuator having an upper end and a bottom end;
- a first pivot assembly to operatively connect the trans-tibial member to the knee member, the first pivot assembly defining a first pivot axis that is perpendicular to the main longitudinal axis;
- a second pivot assembly to operatively connect the upper end of the actuator to the knee member, the second pivot assembly defining a second pivot axis that is substantially parallel to the first pivot axis, the second pivot axis being spaced apart from the first pivot axis and the main longitudinal axis;
- and
- a third pivot assembly to operatively connect the bottom end of the actuator to the bottom end of the trans-tibial member, the third pivot assembly defining a third pivot axis that is substantially parallel to and spaced apart from the first pivot axis.
Dependencies are inferred from the claim text.