The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 29, 2022
Filed:
Apr. 09, 2020
Jonathan Realmuto, Irvine, CA (US);
Terence D. Sanger, Irvine, CA (US);
Jonathan Realmuto, Irvine, CA (US);
Terence D. Sanger, Irvine, CA (US);
Other;
Abstract
A robotic orthosis device for assisting users to rotate their wrist with a pair of fabric-based helical actuators and a sleeve or rigid interfaces configured to attach to a user's forearm. Each of the helical actuators includes a cylinder and a pneumatic bladder configured to inflate the cylinder. Each cylinder includes an anisotropic sheet material and a base sheet material running the length of the cylinder. The anisotropic sheet material comprises elastomeric strands that enable the material to stretch in a direction parallel to the orientation of the elastomeric strands, but different than the longitudinal axis of the cylinder. The base sheet material, which is affixed to the anisotropic sheet material, is strain-limiting along the longitudinal axis. When the bladder is pressurized, the expansion of the bladder causes the cylinder to stretch and twist, thus generating a helical force on the user' wrist relative to the elbow.