Patent ID: 8685109

Claim:
A prosthetic foot, comprising: an adapter; a foot member attached to the adapter and extending downward and forward to a toe end; a heel member discrete from the foot member operatively coupled to the foot member and extending rearward from the foot member, wherein the heel member comprises an elongate plate having a substantially rectangular cross-section along its length and a lower surface defining a concave contoured arch portion that faces a support surface during use, wherein the concave contoured arch portion is defined between anterior and posterior inflection points beyond which the lower surface is no longer concave, the lower surface gradually transitioning from the concave contoured arch portion to a convex contoured heel section posterior to the concave contoured arch portion; and an elastomeric insole member having an upper convex surface corresponding in shape with the concave contoured arch portion, the insole member consisting essentially of a single piece of material and configured to contact the entire arch portion from the anterior inflection point to the posterior inflection point and at least a portion of the convex contoured heel section, the insole member having varying medial/lateral thickness to facilitate a rollover of the prosthetic foot in at least one of a lateral-medial and medial-lateral direction during ambulation, wherein the insole member is configured to maintain the heel member in continuous contact with the support surface from at least a heel-strike position to a mid-stance position during ambulation of the prosthetic foot to provide a substantially uniform progression of a center of pressure of the foot from heel-strike to mid-stance and a substantially smooth rollover.