The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 18, 2001
Filed:
Mar. 16, 2000
Mark R. Pitkin, Sharon, MA (US);
John A. Hays, Columbus, OH (US);
Sujatha Srinivasan, Columbus, OH (US);
James M. Colvin, Hilliard, OH (US);
Ohio Willow Wood Company, Mount Sterling, OH (US);
Abstract
An artificial foot and ankle is provided having a keel component, an ankle component, and a central bumper component interposed between the keel component and the ankle component. The ankle component has a lower surface with a radius of curvature greater than the radius of curvature of an upper surface of the keel component in both a sagittal plane and a frontal plane. The curvature of the central bumper component corresponds to the curvature of the keel component. A holding assembly holds the keel component, the ankle component, and the central bumper component together, with the ankle component capable of rolling motion relative to the keel component in both the sagittal plane and the frontal plane. A dorsiflexion stop assembly may also be provided to control the amount of dorsiflexion.