View clinical trials related to Amputation; Traumatic, Hand.
Filter by:Study assessing four-channel prosthesis controller, that compares contralateral (mirrored) EMG-force training to ipsilateral EMG-target training with both limb-absent and able-bodied subjects
State-of-the-art myoelectric prostheses provide upper limb amputees with a remarkable variety of grip patterns but lack proper feedback from touch sensation. This restriction limits the controllability of multi-articulated robotic hands, resulting in the rejection of the device in many cases. Amputees have often reminiscing sensations in the stump, i.e. by touching certain regions, it feels as if no longer existing fingers were touched. These regions form a phantom map and show promising results for touch feedback. However, not every amputee has one and the socket of a prosthesis offers limited space for additional devices. Thus, the investigators developed a feedback display which is worn in the shoe instead of the prosthesis itself. The investigators want to assess the viability of vibrotactile feedback stimulus on the foot as a substitution for pressure on the fingers of an artificial hand in a clinical study. The efforts are based on the hypothesis that a hand prosthesis with tactile feedback has better performance in manipulating fragile and heavy objects, compared with a standard commercial hand prosthesis without tactile feedback.
Our goal is to temporarily implant the following groups for 540 +/- 30 days: 1. Forearm FAST electrodes 1. Five human partial hand amputees (amputated at the level of the hand) with 2 FAST electrodes in the ulnar nerve and 2-5 FAST electrodes in the median nerve. 2. Five human hand and forearm amputees (amputated at the level of the forearm) with 2 FAST electrodes in the ulnar nerve and 2-5 FAST electrodes in the median nerve . 2. Arm FAST electrodes 1. Five human partial hand amputees (amputated at the level of the hand) with 2 FAST electrodes in the ulnar nerve and 2-5 FAST electrodes in the median nerve. 2. Five human hand and forearm amputees (amputated at the level of the forearm) with 2 FAST electrodes in the ulnar nerve and 2-5 FAST electrodes in the median nerve. 3. Five human hand, forearm and arm amputees (amputated at the level of the arm) with 2 FAST electrodes in the ulnar nerve and 2-5 FAST electrodes in the median nerve.
There is an urgent need to develop hand transplant programs in this country. To this end, the University of Michigan Hospital and Health Systems is developing such an interdisciplinary program. The Transplant Center would like to track the patient experience from pre-operative care through surgery and post-operative care. Detailed information will be collected from the patient medical records, including: Pre-operative screening, demographics, medications; Surgical information ; Post-operative inpatient and out-patient care; laboratory and other test results; physical assessments, psychological assessments and quality of life assessments.