Sensory Feedback for Lower Extremity Prostheses Incorporating Targeted Muscle Reinnervation (TMR)

Abstract

We seek to improve stair descent for lower limb amputees by providing sensory feedback of foot placement. This year we continued to make steady progress on the Specific Aims of this project: (1) Systematically map and characterize the sensory capabilities of lower extremity Targeted Reinnervation (TR) sites under tactile stimulation, and (2) Measure the effects of vibrotactile cues of foot placement on stair descent of transtibial amputees. Specifically, we have demonstrated improved ability of users with no TR surgery to use vibrotactile feedback to estimate their foot placement on a stair step, and we have performed a complete systems test for unrestricted stair descent, including measurement of eye gaze, body kinematics, and force from an insole. These data are sufficient to quantify and characterized performance changes induced by use of the system.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2019
Accession Number
AD1114586

Entities

People

  • Eric Rombokas

Organizations

  • Seattle Institute for Biomedical and Clinical Research

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Amputation
  • Amputees
  • Biomedical Research
  • Closed Loop Systems
  • Department Of Defense
  • Engineering
  • Frequency
  • Haptics
  • Lower Limb Amputations
  • Lower Limb Amputees
  • Lower Limb Prostheses
  • Medical Personnel
  • Motion Capture
  • Prostheses And Implants
  • Prosthesis Fitting
  • Prosthesis Implantation
  • Prosthetics
  • Residual Limbs
  • Surgery
  • Surgical Amputations
  • Wearable Technology

Readers

  • Human-Computer Interaction (HCI).
  • Neuroscience
  • Neurotrauma and Rehabilitation Medicine.