Orthotic device
First Claim
1. An ankle-foot orthosis comprisingmeans immobilizing the ankle and foot against relative movement,foot support means connected with said immobilizing means,said immobilizing means and foot support means being formed to the configuration of the neutral position of maximal subtalor joint contact and relaxed muscle of the ankle and foot of the wearer,and said foot support having means to support the foot with the metatarsal heads thereof normally out of muscle spasm producing contact with said foot support while the toes of the foot are supported in a position of relaxed muscle.
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Accused Products
Abstract
An orthotic device that includes a boot for immobilizing the ankle and foot against relative movement and holds them in a neutral position of maximal joint congruency while providing a sole having a platform for causing the foot to describe a heel to toe rocking movement such that the leg of the user is flexed at the knee and a pivotting motion is induced at the hip joint during walking.
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Citations
28 Claims
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1. An ankle-foot orthosis comprising
means immobilizing the ankle and foot against relative movement, foot support means connected with said immobilizing means, said immobilizing means and foot support means being formed to the configuration of the neutral position of maximal subtalor joint contact and relaxed muscle of the ankle and foot of the wearer, and said foot support having means to support the foot with the metatarsal heads thereof normally out of muscle spasm producing contact with said foot support while the toes of the foot are supported in a position of relaxed muscle.
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10. A method of inducing pivotal movements at the knee and lateral rotations at the hip comprising
supporting the foot and ankle of a person against relative movement in a position of subtalor maximal joint contact and relaxed muscle with the metatarsal heads of the digits of the foot free of muscle spasm producing contact with a sole that maintains the toes of the foot in a position of relaxed muscle, and during ambulation causing the foot to rock forward from the heel thereof upon contact with a walking surface to apply a flexor moment to the leg as the same moves beyond a mid-stance position and continued ambulation causes the toes to propel in a downward direction toward contact with the walking surface.
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15. An orthotic device for teaching normal ambulation to a wearer by supporting the ankle and foot, the combination comprising
a sole for supporting the foot, a boot comforming to and enclosing the ankle and foot in an immobile relationship in which the same are fused against relative movement by said conforming boot from proximal the metatarsal phalangeal joint of the foot substantially to the tibial tubercle of the leg while the subtalor joints thereof are in a position of maximal contact and produce relaxed muscle, and means cooperating with said boot to retain the same releasably and conformingly enclosed about the ankle and foot during ambulation.
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17. An orthotic device for teaching normal ambulation to a wearer by supporting the ankle and foot, the combination comprising
a sole for supporting the foot, said sole including means to support the foot with the metatarsal digits thereof out of muscle spasm producing contact during ambulation, a boot conforming to and enclosing the ankle and foot in an immobile relationship in which the same are fused against relative movement by said conforming boot from proximal the metatarsal phalangeal joint of the foot substantially to the tibial tubercle of the leg while the subtalor joints thereof are in a position of maximal contact and produce relaxed muscle, and means cooperating with said boot to retain the same releasably and conformingly enclosed about the ankle and foot during ambulation.
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19. An orthotic device for teaching normal ambulation to a wearer by supporting the ankle and foot, the combination comprising a sole for supporting the foot,
means on said sole supporting the toes of the foot in a position of relaxed muscle, a boot conforming to and enclosing the ankle and foot in an immobile relationship in which the same are fused against relative movement by said conforming boot from proximal the metatarsal phalangeal joint of the foot substantially to the tibial tubercle of the leg while the subtalor joints thereof are in a position of maximal contact and produce relaxed muscle, and means cooperating with said boot to retain the same releasably and conformingly enclosed about the ankle and foot during ambulation.
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22. An orthotic device comprising the combination of a sole having a foot supporting insole and immobilizing means connected with said sole to retain a foot supported on said sole and its related ankle against relative movements in a position of maximal subtalor joint contact and relaxed muscle,
said insole having means to support a foot thereon with the metatarsal digits thereof free of muscle spasm producing contact therewith when the foot and ankle are supported in their position of maximal subtalor joint contact and relaxed muscle, and toe supporting means on said insole for supporting the toes of the foot in a position of relaxed muscle.
Specification