title: A clinical experience with a hierarchically controlled myoelectric hand prosthesis with vibro-tactile feedback.
abstract: Improved performance of externally powered myoelectric hands is possible when the direct control of the digit flexion and grip force are given over to an electronic controller which frees the operator to concentrate on other demands.
  
  
  METHODS
  A commercial myoelectric hand was modified to take the new touch and slip sensors and novel control method.
  
  
  METHODS
  An adult male with a traumatic mid-forearm amputation.
  
  
  METHODS
  The range and ease of use of the prosthetics system.
  
  
  RESULTS
  The hand was easily and usefully operated in the home and work environment.
  
  
  CONCLUSIONS
  Hierarchical control of a hand is possible using sensory feedback to a sophisticated electronic controller. Such a control method reduces the demands on the user's concentration and enhances the hand's range.
authors.affiliation: Oxford Orthopaedic Engineering Centre, NOC, Headington, UK.
authors.forename: P J
authors.initials: PJ
authors.lastname: Kyberd
authors.forename: N
authors.initials: N
authors.lastname: Mustapha
authors.forename: F
authors.initials: F
authors.lastname: Carnegie
authors.forename: P H
authors.initials: PH
authors.lastname: Chappell
mesh_terms: D000328:Adult; D000673:Amputation, Traumatic / Q000534:rehabilitation*; D001186:Artificial Limbs / Q000592:standards*; D001676:Biofeedback, Psychology / Q000295:instrumentation*; D003663:Decision Trees; D004576:Electromyography / Q000295:instrumentation*; D006230:Hand Injuries / Q000534:rehabilitation*; D006801:Humans; D008297:Male; D011475:Prosthesis Failure; D013813:Therapy, Computer-Assisted / Q000295:instrumentation*; D013997:Time Factors; D014110:Touch; D014732:Vibration