Patent ID: 8888864
Filing Date: 2014-11-18
Classification: A61F

Abstract:
1. A prosthetic ankle, comprising: a substrate; a joint housing having a bottom surface; a clevis coupled to the joint housing such that the clevis can rotate about the joint housing; a prosthetic coupling structure for coupling the clevis to an amputee; an articulating joint contained in the joint housing; wherein a portion of the bottom surface of the joint housing is curved allowing the substrate a preset amount of flexion when coupled thereto and flexed in a concave position; a toe-off spring coupled to at least a portion of the substrate; a toe-lift spring coupled to at least a portion of the clevis, wherein at least a portion of the toe-lift spring is between the joint housing and the toe-off spring; and wherein a portion of the bottom surface of the joint housing is curved allowing the toe-off spring and the toe-lift spring a preset amount of flexion when flexed in a concave position.