An adjustable resilient foot prosthesis
First Claim
Patent Images
1. An artificial foot comprised of:
- a foot blade and a hollow housing, wherein said foot blade extends at an angle to and is connected to said housing so as to permit relative movement between said housing and said foot blade,an elongated brace for adjusting the angular position of said foot blade with respect to said housing, wherein one end of said brace is displaceably and adjustably attached to said housing by means of attachment to a shaft with a ball screw engaged with a ball nut disposed within said housing, wherein the other end of said brace is connected to said foot blade so as to permit relative movement between said housing and said foot blade, andbrake means for selectively locking and unlocking said ball nut with respect to said housing in order to adjust the angular position of said foot blade with respect to said housing.
1 Assignment
0 Petitions
Accused Products
Abstract
An artificial foot which includes a foot blade and a hollow cylindrical body which extends at an angle to the foot blade and which is connected thereto in a manner to permit relative movement therebetween. The foot also includes a two-part brace which is displaceable and adjustably mounted in an upper end of the cylindrical body and is attached to the foot blade at a lower end of the body in a manner such as to permit relative movement between the foot blade and the brace. Displaceability and adjustability of the brace, and therewith angular adjustment of the foot, may be provided by the combination of a ball screw and a ball nut which is rotatable, and selectively lockable by the user.
176 Citations
4 Claims
-
1. An artificial foot comprised of:
-
a foot blade and a hollow housing, wherein said foot blade extends at an angle to and is connected to said housing so as to permit relative movement between said housing and said foot blade, an elongated brace for adjusting the angular position of said foot blade with respect to said housing, wherein one end of said brace is displaceably and adjustably attached to said housing by means of attachment to a shaft with a ball screw engaged with a ball nut disposed within said housing, wherein the other end of said brace is connected to said foot blade so as to permit relative movement between said housing and said foot blade, and brake means for selectively locking and unlocking said ball nut with respect to said housing in order to adjust the angular position of said foot blade with respect to said housing. - View Dependent Claims (2, 3, 4)
-
Specification