Overmould attachments for prosthetic foot

Abstract

An attachment for a prosthetic foot comprising an attachment surface that couples to the edges of a foot plate of a prosthetic foot and an outer surface that functionally or cosmetically alters the foot plate of the prosthetic foot in order to adapt the prosthetic foot to the needs of the user. In another embodiment, a toe attachment for a prosthetic foot comprising a cavity that can receive the toe end of an elongate foot element of a prosthetic foot, the toe attachment that can functionally or cosmetically alter the elongate foot element in order to adapt the prosthetic foot to the needs of the user. In yet another embodiment, a seal cover that can removably engage a prosthetic foot and a cosmetic cover for a prosthetic foot, resulting in a substantially watertight connection between the seal cover and the prosthesis and the seal cover and the cosmesis.

1 - 3 . (canceled) 
     
     
         4 . A prosthetic foot, comprising:
 an elongate foot member having a distal toe end with a distal toe surface and a proximal ankle end, the elongate foot member having a medial surface and a lateral surface extending along a length of the elongate foot member; and   an attachment member coupleable to the elongate foot member along an entire length of the attachment member, the attachment member configured to attach to at least the distal toe surface and the medial and lateral surfaces of the elongate foot member to alter a shape of the prosthetic foot by increasing one or both of a width and a length of at least a portion of the elongate foot member.   
     
     
         5 . The prosthetic foot of  claim 4 , further comprising a heel member disposed below the elongate foot member and extending to a proximal heel end, wherein the attachment member does not attach to the heel member. 
     
     
         6 . The foot prosthesis of  claim 4 , wherein the attachment member changes a stiffness characteristic of the elongate foot member. 
     
     
         7 . The foot prosthesis of  claim 4 , wherein the attachment member comprises a different material than the elongate foot member. 
     
     
         8 . The foot prosthesis of  claim 4 , wherein at least one of the medial and lateral surfaces of the elongate foot member extend along a plane parallel to a longitudinal axis of the elongate foot member along at least a portion of their length between the distal toe end and the proximal ankle end, the attachment member increasing a width of the elongate foot member and defining a curved outer edge of the prosthetic foot when attached to the elongate foot member. 
     
     
         9 . The foot prosthesis of  claim 4 , wherein the attachment member is coupleable to the elongate foot member along the entire length of the elongate foot member. 
     
     
         10 . The foot prosthesis of  claim 4 , wherein the attachment member extends partially over at least one of a top surface and a bottom surface of the elongate foot member when the attachment member is coupled to the elongate foot member. 
     
     
         11 . The foot prosthesis of  claim 4 , wherein the attachment member comprises a distal portion coupleable to the distal toe surface of the elongate foot member, the distal portion of the attachment member having a split therein corresponding to a split in the elongate foot member that divides the elongate foot member into a medial portion and a lateral portion. 
     
     
         12 . The foot prosthesis of  claim 4 , wherein the attachment member is configured to clip to at least one of the medial and lateral surfaces of the elongate foot member. 
     
     
         13 . The foot prosthesis of  claim 4 , wherein the attachment member comprises a distal portion attachable to the distal toe surface of the elongate foot member, the distal portion of the attachment member defining a slot configured to receive a strap of a sandal when worn on the prosthetic foot. 
     
     
         14 . The foot prosthesis of  claim 4 , wherein the attachment member has a side profile that matches a profile of the elongate foot member. 
     
     
         15 . A prosthetic foot, comprising:
 an elongate foot member having a distal toe end with a distal toe surface and a proximal ankle end, the elongate foot member having a medial surface and a lateral surface extending along a length of the elongate foot member; and
 an attachment member coupleable to the elongate foot member, the attachment member configured to attach to at least the distal toe surface and the medial and lateral surfaces of the elongate foot member to alter a shape of the prosthetic foot by increasing one or both of a width and a length of at least a portion of the elongate foot member, 
 wherein the attachment member is coupleable to the elongate foot member along the entire length of the elongate foot member, 
 wherein the attachment member has a side profile that matches a profile of the elongate foot member. 
   
     
     
         16 . The foot prosthesis of  claim 15 , wherein the attachment member changes a stiffness characteristic of the elongate foot member. 
     
     
         17 . The foot prosthesis of  claim 15 , wherein at least one of the medial and lateral surfaces of the elongate foot member extend along a plane parallel to a longitudinal axis of the elongate foot member along at least a portion of their length between the distal toe end and the proximal ankle end, the attachment member increasing a width of the elongate foot member and providing a curved outer edge to the prosthetic foot when attached to the elongate foot member. 
     
     
         18 . The foot prosthesis of  claim 15 , wherein the attachment member extends partially over at least one of a top surface and a bottom surface of the elongate foot member when the attachment member is coupled to the elongate foot member. 
     
     
         19 . The foot prosthesis of  claim 15 , wherein the attachment member comprises a distal portion coupleable to the distal toe surface of the elongate foot member, the distal portion of the attachment member having a split therein corresponding to a split in the elongate foot member that divides the elongate foot member into a medial portion and a lateral portion. 
     
     
         20 . The foot prosthesis of  claim 15 , wherein the attachment member comprises a distal portion attachable to the distal toe surface of the elongate foot member, the distal portion of the attachment member defining a slot configured to receive a strap of a sandal when worn on the prosthetic foot. 
     
     
         21 . A prosthetic foot, comprising:
 an elongate foot member having a toe end and an ankle end; and   a toe attachment removably coupleable to the elongate foot member and having a top surface, a bottom surface, a distal end, a proximal end, the toe attachment defining a slot therein and having a length shorter than a length of the elongate foot member,   wherein the toe attachment is configured to removably couple solely to the toe end of the elongate foot member,   wherein the slot in the toe attachment extends from the top surface to the bottom surface defining a medial lobe and a lateral lobe of the removably coupleable toe attachment, the slot configured to removably receive a strap of a sandal when said sandal is coupled to the prosthetic foot.   
     
     
         22 . The foot prosthesis of  claim 21 , wherein the slot is generally U-shaped. 
     
     
         23 . The foot prosthesis of  claim 21 , wherein the toe attachment is attachable to at least the distal toe surface and the medial and lateral surfaces of the elongate foot member to alter a shape of the prosthetic foot by increasing a least one of a width and a length of at least a portion of the elongate foot member. 
     
     
         24 . The foot prosthesis of  claim 21 , wherein the medial lobe and the lateral lobe of the toe attachment have different widths.