US 12,239,561 B2
Foot orthosis
Andrey Degtyar, Haifa (IL); and Oleg Shlomo Gendelman, Haifa (IL)
Appl. No. 17/435,503
Filed by TECHNION RESEARCH & DEVELOPMENT FOUNDATION LIMITED, Haifa (IL)
PCT Filed Mar. 5, 2020, PCT No. PCT/IL2020/050263
§ 371(c)(1), (2) Date Sep. 1, 2021,
PCT Pub. No. WO2020/178839, PCT Pub. Date Sep. 10, 2020.
Claims priority of provisional application 62/813,894, filed on Mar. 5, 2019.
Prior Publication US 2022/0133517 A1, May 5, 2022
Int. Cl. A61F 5/01 (2006.01)
CPC A61F 5/0113 (2013.01) [A61F 2005/0197 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An apparatus comprising:
two or more leaf spring assemblies,
an elastic flexible knee cuff;
an upper spring-coupling element connected to the two or more leaf spring assemblies; and
at least one lateral flexible strap connecting the upper spring-coupling element to the elastic flexible knee cuff,
wherein each leaf spring assembly comprises:
(a) shaped to define a first end, a second end, and a middle portion comprising a plurality of layered leaf springs disposed between the first and second ends; and
(b) configured to be placed across a joint of a user such that the first end is configured to be placed against a first location on a first side of the joint, and the second end is configured to be placed against a second location on a second side of the joint, and when each leaf spring from the plurality of layered leaf springs is constrained between the first and second locations:
(i) the middle portion of each leaf spring is configured to bridge] a gap formed between the middle portion and the joint, and
(ii) each leaf spring is configured to be constrained at a position of a first portion of a limb on the first side of the joint, such that, a desired angle is maintained with respect to a second portion of the limb on the second side of the joint,
wherein a lateral distance is maintained between at least one middle leaf spring assembly and a neighbouring leaf spring assembly from the two or more leaf spring assemblies.