US 11,654,311 B2
Trunk control systems and wheelchairs comprising same
Gary Goldish, Minneapolis, MN (US); Andrew Hansen, Minneapolis, MN (US); Stuart R. Fairhurst, Minneapolis, MN (US); Gregory O. Voss, Apple Valley, MN (US); and Urs Schneider, Munich (DE)
Assigned to United States Government As Represented By The Department Of Veterans Affairs, Washington, DC (US); and Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e. V., Munich (DE)
Filed by United States Government as Represented by the Department of Veterans Affairs, Washington, DC (US); and Fraunhofer-Gesellschaft zur Foerdrung der angewandten Forschung e. V., Munich (DE)
Filed on Apr. 14, 2020, as Appl. No. 16/848,303.
Claims priority of provisional application 62/833,990, filed on Apr. 15, 2019.
Prior Publication US 2020/0324152 A1, Oct. 15, 2020
Int. Cl. A61G 5/10 (2006.01); A62B 35/00 (2006.01); B60N 2/24 (2006.01); A61F 5/37 (2006.01)
CPC A62B 35/0012 (2013.01) [A61F 5/3792 (2013.01); A61G 5/10 (2013.01); A62B 35/0075 (2013.01); B60N 2/245 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A trunk control system comprising:
a harness assembly having:
a backrest member configured to be moveably coupled to a wheelchair, wherein the backrest member is selectively moveable about and between a fully retracted position and a fully extended position; and
a harness secured to the backrest member, wherein the harness cooperates with the backrest member to define a receiving space for receiving at least a portion of a torso of a wheelchair user; and
a flexion control assembly coupled to the backrest member of the harness assembly, wherein the flexion control assembly is configured to selectively permit or restrict movement of the backrest member about and between the fully retracted position and the fully extended position.