Patent ID: 7108723
Filing Date: 2006-09-19
Classification: A61F

Abstract:
1. A prosthetic foot comprising a forefoot portion, a midfoot portion and a hindfoot portion, said hindfoot portion including an ankle joint permitting closed kinetic chain motion of the prosthetic foot in gait, said ankle joint having a joint axis oriented with the medial more anterior than the lateral for permitting motion of said hindfoot portion about said ankle joint axis such that said motion is in the sagittal and frontal planes, said ankle joint being formed integrally with said hindfoot portion by a strut of resilient material of said hindfoot portion, the strut having an anterior side surface and a posterior side surface which are anterior facing convexly curved, wherein a hole extends through said hindfoot portion with the periphery of the hole forming an anterior side surface of said strut, wherein the hindfoot portion anterior to said hole includes a gap to permit said motion of said hindfoot portion about said ankle joint axis, and wherein said hole as seen in a cross section of the prosthetic foot in the sagittal plane is elongated upwardly such that said strut is upstanding.