Prosthetic foot with a curved split
AssigneeOssur Hf
InventorVilhjalmur Freyr Jónsson
Life of this patent
Estimating the term…
Abstract
Prosthetic feet having a split feature are described. The prosthetic feet can include a plate-like upper element and a plate-like lower element connected to the upper element. The plate-like upper element can include a split that separates the upper element into a medial blade and a lateral blade. A portion of the split can curve in a medial or lateral direction. Portions of the split can also be straight, but askew, from a longitudinal axis of the upper element. The plate-like lower element can also include a similar curved split that separates the lower element into a medial blade and a lateral blade. These features, among others, are designed to provide multi-axial movement capabilities of a natural human foot and enhance roll-over properties while in use.
Claims20
A prosthetic foot comprising:
- a plate-like upper element having an upper section at a posterior end of the upper element, wherein the upper element extends downward and forward from the upper section to a toe section at an anterior end of the upper element, wherein the upper element includes an upper split that separates the upper element into an upper medial blade and an upper lateral blade, wherein the upper split extends from an opening in the upper element spaced from the posterior end of the upper element to the anterior end of the upper element, the upper split including a portion that is substantially straight in a posterior to anterior direction followed by a portion that curves in a medial or lateral direction, wherein the length of the curved portion of the upper split is between about 1/10 to ¼ of the total length of the upper split;
- and
- a plate-like lower element connected to the upper element, the lower element including a heel section at a posterior end of the lower element and a front section at an anterior end of the lower element, wherein the lower element includes a lower split that separates the lower element into a lower medial blade and a lower lateral blade, wherein the lower split extends from a posterior end of the lower element toward the anterior end of the lower element.
A prosthetic foot comprising:
- a plate-like upper element having an upper section at a posterior end of the upper element, wherein the upper element extends downward and forward from the upper section to a toe section at an anterior end of the upper element, wherein the upper element includes an upper split that separates the upper element into an upper medial blade and an upper lateral blade, wherein the upper split extends from a location spaced from the posterior end of the upper element to the anterior end of the upper element;
- and
- a plate-like lower element connected to the upper element, the lower element including a heel section at a posterior end of the lower element and a front section at an anterior end of the lower element, wherein the lower element includes a lower split that separates the lower element into a lower medial blade and a lower lateral blade, wherein the lower split extends from a posterior end of the lower element toward the anterior end of the lower element;
- wherein at least one of the upper split and the lower split includes a portion that curves in a medial or lateral direction.
A prosthetic foot comprising:
- a plate-like upper element having an upper section at a posterior end of the upper element, wherein the upper element extends downward and forward from the upper section to a toe section at an anterior end of the upper element, wherein the upper element includes an upper split that separates the upper element into an upper medial blade and an upper lateral blade, wherein the upper split extends from a location spaced from the posterior end of the upper element to the anterior end of the upper element;
- and
- a plate-like lower element connected to the upper element, the lower element including a heel section at a posterior end of the lower element and a front section at an anterior end of the lower element, wherein the lower element includes a lower split that separates the lower element into a lower medial blade and a lower lateral blade, wherein the lower split extends from a posterior end of the lower element toward the anterior end of the lower element;
- wherein at least one of the upper split and the lower split includes a portion that is non-parallel relative to a longitudinal axis of the upper element or the lower element.
Dependencies are inferred from the claim text.