The use of a bone-anchored device as a hard-wired conduit for transmitting EMG signals from implanted muscle electrodes.
The use of a bone-anchored device to transmit electrical signals from internalized muscle electrodes was studied in a sheep model. The bone-anchored device was used as a conduit for the passage of a wire connecting an internal epimysial electrode to an external signal-recording device. The bone-anchored device was inserted into an intact tibia and the electrode attached to the adjacent M. peroneus tertius. "Physiological" signals with low signal-to-noise ratios were successfully obtained over a 12-week period by walking the sheep on a treadmill. Reliable transmission of multiple muscle signals across the skin barrier is essential for providing intuitive, biomimetic upper limb prostheses. This technology has the potential to provide a better functional and reliable solution for upper limb amputee rehabilitation: attachment and control.
Institute of Biomedical Engineering, University College London, Royal National Orthopaedic Hospital, Stanmore HA7 4LP, UK. yazan.ajam@gmail.com
Y
Y
Al-Ajam
H
H
Lancashire
C
C
Pendegrass
N
N
Kang
R P
RP
Dowling
S J G
SJ
Taylor
G
G
Blunn
D000818:Animals; D001186:Artificial Limbs; D004567:Electrodes, Implanted; D004576:Electromyography / Q000295:instrumentation* / Q000379:methods; D005260:Female; D018482:Muscle, Skeletal / Q000502:physiology / Q000601:surgery*; D012756:Sheep; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D059629:Signal-To-Noise Ratio; D013264:Stifle / Q000601:surgery; D053441:Suture Anchors; D013977:Tibia / Q000601:surgery*