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Voluntary phantom hand and finger movements in transhumerai amputees could be used to naturally control polydigital prostheses | IEEE Conference Publication | IEEE Xplore

Voluntary phantom hand and finger movements in transhumerai amputees could be used to naturally control polydigital prostheses


Abstract:

An arm amputation is extremely invalidating since many of our daily tasks require bi-manual and precise control of hand movements. Perfect hand prostheses should therefor...Show More

Abstract:

An arm amputation is extremely invalidating since many of our daily tasks require bi-manual and precise control of hand movements. Perfect hand prostheses should therefore offer a natural, intuitive and cognitively simple control over their numerous biomimetic active degrees of freedom. While efficient polydigital prostheses are commercially available, their control remains complex to master and offers limited possibilities, especially for high amputation levels. In this pilot study, we demonstrate the possibility for upper-arm amputees to intuitively control a polydigital hand prosthesis by using surface myoelectric activities of residual limb muscles (sEMG) associated with phantom limb movements, even if these residual arm muscles on which the phantom activity is measured were not naturally associated with hand movements before amputation. Using pattern recognition methods, three arm amputees were able, without training, to initiate 5-8 movements of a robotic hand (including individual finger movements) by simply mobilizing their phantom limb while the robotic hand was mimicking the action in real time. This innovative control approach could offer to numerous upper-limb amputees an access to recent biomimetic prostheses with multiple controllable joints, without requiring surgery or complex training; and might deeply change the way the phantom limb is apprehended by both patients and clinicians.
Date of Conference: 17-20 July 2017
Date Added to IEEE Xplore: 14 August 2017
ISBN Information:
Electronic ISSN: 1945-7901
PubMed ID: 28813991
Conference Location: London, UK

References

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