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Related Experiment Videos

Practical low cost stand/sit system for mid-thoracic paraplegics.

D J Ewins1, P N Taylor, S E Crook

  • 1Department of Electrical Engineering, Bath University, Salisbury, UK.

Journal of Biomedical Engineering
|April 1, 1988
PubMed
Summary

Functional electrical stimulation (FES) allows paraplegics to stand independently. This new system is safe, user-friendly, and affordable, enabling standing for up to 10 minutes.

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Area of Science:

  • Biomedical Engineering
  • Rehabilitation Technology

Background:

  • Functional electrical stimulation (FES) systems for paraplegics are effective in laboratory settings but face challenges for routine, unsupervised use.
  • Key challenges include ensuring system safety ('fail-safe' operation), ease of use in diverse locations, and affordability for widespread adoption.

Purpose of the Study:

  • To develop a safe, user-friendly, and cost-effective FES system enabling paraplegics with mid-thoracic lesions to stand independently in various environments.
  • To enhance patient mobility and function through accessible standing technology.

Main Methods:

  • Development of a microprocessor-based stimulator for personalized FES parameter tailoring.
  • Implementation of closed-loop control to minimize muscle fatigue during standing.
  • Design of a folding standing frame integrated with standard wheelchairs.

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  • Utilization of cosmetic knee-ankle-foot orthoses for extended standing durations.

    • Main Results:

    • The developed FES system allows users to achieve standing position within 30 seconds of activation.
    • Users can maintain standing for up to 10 minutes using the FES system.
    • The system aims for a unit cost of approximately 750 pounds, enhancing accessibility for paraplegics.

    Conclusions:

    • The FES system offers a practical solution for enabling paraplegics to stand independently, addressing safety, usability, and cost concerns.
    • This technology has the potential to significantly improve the functional independence and quality of life for a large number of individuals with paraplegia.