Device and system for prosthetic knees and ankles
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
A device and system is provided for a prosthetic device having an articulating joint for a leg amputee. The device includes a joint housing forming a chamber, and the chamber has a first opening. A rotary hub can be disposed within the joint housing and configured to act as the articulating joint. One or more vanes can extend outwardly from the rotary hub, and the vane is configured to actuate fluid flow through the first opening.
Claims23
A prosthetic device having an articulating ankle joint for a leg amputee, comprising:
- a joint housing forming a first chamber, the first chamber having a first opening;
- a rotary hub disposed within the joint housing, movable independently of the joint housing, and wherein the rotary hub is the articulating joint;
- a plurality of vanes integrally formed with and extending radially symmetrically outwardly from the rotary hub, the plurality of vanes comprising a first vane and a second vane, the second vane being located on an opposing side of the rotary hub directly opposite the first vane, wherein the vanes are fully enclosed within the joint housing, and wherein at least one of the plurality of vanes is configured to rotate and actuate fluid flow through the first opening;
- and
- a toe keel element mounted on a spherical or cylindrical surface of the joint housing in order to facilitate resistance to eversion and inversion.
A prosthetic ankle device for a leg amputee having hydraulic resistance, comprising:
- a joint housing having a first chamber, the first chamber having a first opening, and a second opening in fluid communication with the first opening;
- a rotary hub disposed within the joint housing, movable independently of the joint housing, and wherein the rotary hub is an articulating joint;
- a plurality of vanes integrally formed with and extending radially symmetrically outwardly from the rotary hub, the plurality of vanes comprising a first vane and a second vane, the second vane being located on an opposing side of the rotary hub directly opposite the first vane, wherein the vanes are fully enclosed within the joint housing, and wherein at least one of the plurality of vanes is configured to rotate and actuate fluid flow through the first opening;
- a valve for controlling the fluid flow between the first opening and the second opening of the first chamber;
- and
- a toe keel element mounted on a spherical or cylindrical surface of the joint housing in order to facilitate resistance to eversion and inversion.
A prosthetic device for a leg amputee having at least one ankle joint, comprising:
- a joint housing having a first chamber, the first chamber having a first opening and a second opening in fluid communication with the second opening;
- a rotary hub having a plurality of vanes integrally formed radially symmetrically therewith and fully enclosed within the joint housing, the rotary hub being disposed within the joint housing and movable independently of the joint housing, wherein the rotary hub is an articulating ankle joint, and wherein the plurality of vanes are configured to rotate and actuate fluid flow and comprise a first vane and a second vane, the second vane being located on an opposing side of the rotary hub directly opposite the first vane;
- and
- an electronically controlled valve for variably controlling the fluid flow between the first opening and the second opening of the first chamber.
Dependencies are inferred from the claim text.