Magnetorheologically actuated prosthetic knee
5 Assignments
0 Petitions
Accused Products
Abstract
The invention in some embodiments relates to a magnetorheologically actuated prosthetic knee. The knee in one embodiment comprises an extension assist to facilitate knee extension. The knee in another embodiment comprises a dual-stage bumper system that limits the maximum knee rotation. The knee in yet another embodiment comprises a cover that includes a flexible skin and an exoskeleton.
-
Citations
103 Claims
-
1-75. -75. (canceled)
-
76. A prosthetic knee, comprising:
-
a rotatable first portion, a rotatable second portion, an extension assist and a magnetorheological fluid to substantially control the rotation of said first and second portions, said first and second portions being operably connected to move relative to each other;
wherein rotation of said first portion generally corresponds to rotation of a lower part of a limb and rotation of said second portion generally corresponds to rotation of an upper part of said limb; and
wherein said extension assist comprises a torsion spring with an inner leg operatively coupled to said first portion and an outer leg operatively coupled to said second portion to store energy during rotation in a flexion direction and release energy during rotation in an extension direction to facilitate knee extension. - View Dependent Claims (77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103)
-
Specification