Thumb Stabilization and Assistance in a Robotic Hand Orthosis for Post-Stroke Hemiparesis.

ABSTRACT: We propose a dual-cable method of stabilizing the thumb in the context of a hand orthosis designed for individuals with upper extremity hemiparesis after stroke. This cable network adds opposition/reposition capabilities to the thumb, and increases the likelihood of forming a hand pose that can successfully manipulate objects. In addition to a passive-thumb version (where both cables are of fixed length), our approach also allows for a single-actuator active-thumb version (where the extension cable is actuated while the abductor remains passive), which allows a range of motion intended to facilitate creating and maintaining grasps. We performed experiments with five chronic stroke survivors consisting of unimanual resistive-pull tasks and bimanual twisting tasks with simulate

SUBMITTER: Chen A 

PROVIDER: S-EPMC9272827 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature