Ankle foot orthoses known as lower leg walkers
First Claim
1. An ankle foot orthosis known as a lower leg walker and comprising:
- a foot platform base comprising;
a substantially rigid chassis constructed as an open grid structure of the form of a modified right prism or parallelepiped having no entire upper or lower bounding wall and having side-walls which bound a first series of ribs disposed in a longitudinal manner and a second series of ribs disposed in a transverse manner and substantially enclosed within an over-mould formed in a resilient material to produce a shoe shape for supportively accommodating a human foot and incorporating an integral sole for contact with the ground, said sole being provided with a first longitudinally curved profile extending over the forward part of said integral sole and a second longitudinally curved profile extending over the rear part of said sole;
said second longitudinally curved profile providing progressive rolling contact with the ground during that part of the ambulatory cycle of movement or gait cycle known as heel strike; and
said first longitudinally curved profile providing rolling contact with the ground during that part of the ambulatory cycle of movement or gait cycle known as toe off;
said sole thereby providing first and second zones of contact with the ground such that the upper surface of said foot platform base is substantially level when a human patient secured to it, stands still in that part of the ambulatory or gait cycle known as mid-stance; and
attachment means for securing a pair of upright side-members disposed laterally and medially with respect to said foot platform base; and
securing means for releasably securing said upright side-members to wrap means for enclosing a human foot, ankle and lower leg; and
strap means for securing said orthosis to a human foot, ankle and lower leg.
2 Assignments
0 Petitions
Accused Products
Abstract
A Lower Leg Walker for the treatment of ankle fractures and a variety of other injuries to the foot and ankle, has a foot platform base comprising a rigid chassis of more or less parallelepiped shape. The chassis is substantially a plurality of ribs disposed at right angles, forming a grid and is over-moulded with resilient materials forming a shoe shape. The foot platform base supports and accommodates the human foot and has a distinctive, low, double rocker profile on its underside. The lower leg walker is provided with attachment hinges for securing a pair of upright side-members to the foot platform base and these are covered with hook and loop attachment material which releasably secures them to a wrap which is lined with terry material and encloses the foot, ankle and lower leg. The device is secured to the patient with a series of straps.
-
Citations
10 Claims
-
1. An ankle foot orthosis known as a lower leg walker and comprising:
-
a foot platform base comprising; a substantially rigid chassis constructed as an open grid structure of the form of a modified right prism or parallelepiped having no entire upper or lower bounding wall and having side-walls which bound a first series of ribs disposed in a longitudinal manner and a second series of ribs disposed in a transverse manner and substantially enclosed within an over-mould formed in a resilient material to produce a shoe shape for supportively accommodating a human foot and incorporating an integral sole for contact with the ground, said sole being provided with a first longitudinally curved profile extending over the forward part of said integral sole and a second longitudinally curved profile extending over the rear part of said sole; said second longitudinally curved profile providing progressive rolling contact with the ground during that part of the ambulatory cycle of movement or gait cycle known as heel strike; and said first longitudinally curved profile providing rolling contact with the ground during that part of the ambulatory cycle of movement or gait cycle known as toe off; said sole thereby providing first and second zones of contact with the ground such that the upper surface of said foot platform base is substantially level when a human patient secured to it, stands still in that part of the ambulatory or gait cycle known as mid-stance; and attachment means for securing a pair of upright side-members disposed laterally and medially with respect to said foot platform base; and securing means for releasably securing said upright side-members to wrap means for enclosing a human foot, ankle and lower leg; and strap means for securing said orthosis to a human foot, ankle and lower leg. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
Specification