Energy storing foot plate
AssigneeMotion Control, Inc.
InventorsEdwin Kay Iversen, Harold H. Sears, Arthur D. Dyck, Steven R. Kunz, Joseph Anthony Jacobs, James R. Linder, Peter K. Strazdins
Life of this patent
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Abstract
Compositions are provided for a prosthetic ankle comprising: 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 that couples the clevis to an amputee, and an articulating joint contained in the joint housing. Additionally, a portion of the bottom surface of the joint housing can be curved allowing a substrate a preset amount of flexion when coupled thereto and flexed in a concave position.
Claims19
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.
A prosthetic foot, comprising:
- a sole plate;
- a joint housing having a bottom surface;
- a clevis coupled to the sole plate and the joint housing such that the clevis can rotate about the joint housing;
- a prosthetic coupling structure for coupling the clevis to an amputee;
- wherein a portion of the bottom surface of the joint housing is curved allowing the sole plate a preset amount of flexion when flexed in a concave position;
- a toe-off spring coupled to at least a portion of the sole plate, and wherein the joint housing is semi-rigidly coupled to the toe-off spring;
- a toe-lift spring coupled to at least a portion of the toe-off spring and the joint housing;
- a toe-lift spring retainer coupled to the toe-off spring to restrict movement of an end of the toe-lift spring in a direction perpendicular to a plane of 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.
A prosthetic foot, comprising:
- a sole plate;
- a joint housing having a bottom surface;
- a clevis coupled to the sole plate and the joint housing such that the clevis can rotate about the joint housing;
- a toe-off spring coupled to at least a portion of the sole plate;
- 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
- a rotary hub disposed within the joint housing and configured to act as an articulating joint;
- 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.
Dependencies are inferred from the claim text.