Real-World Testing of the Self Grasping Hand, a Novel Adjustable Passive Prosthesis: A Single Group Pilot Study

(1) Background: This study investigated the feasibility of conducting a two-week “real-world” trial Self Grasping Hand (SGH), novel 3D printed passive adjustable prosthesis for hand absence; (2) Methods: Single-group pilot nine adults with trans-radial limb five used body-powered split-hooks, and four had cosmetic hands as their usual prosthesis. Data from activity monitors were to measure wear time bilateral activity. At end trial, function satisfaction measured using Orthotics Prosthetics Users’ Survey Function Scale (OPUS) sub-scales Trinity Amputations Prosthesis Experience (TAPES). Semi-structured interviews captured consumer feedback suggestions improvement; (3) Results: Average SGH over 2 weeks was 17.5 h (10% total time) split-hook users 83.5 (63% users. Mean 5.2/10, mean score 47.9/100; (4) Two-week real-world testing is feasible methods described. Future designs need be more robust easier grasp lock/unlock.