Implantable Myoelectric Sensors (IMESs) for Intramuscular Electromyogram Recording

Implantable Myoelectric Sensors (IMESs) for Intramuscular Electromyogram Recording

We have developed a multichannel electrogmyography sensor system capable of receiving and processing signals from up to 32 implanted myoelectric sensors (IMES). The appeal of implanted sensors for myoelectric control is that electromyography (EMG) signals can be measured at their source providing re...

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Bibliographic Details
Published in:IEEE transactions on biomedical engineering Vol. 56; no. 1; pp. 159 - 171
Main Authors: Weir, Richard F., Troyk, Phil R., DeMichele, Glen A., Kerns, Douglas A., Schorsch, Jack F., Maas, Huub
Format: Journal Article
Language:English
Published: United States IEEE 01-01-2009
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Animals
Biosensors
Cats
Electrodes
Electrodes, Implanted
Electromyography
Electromyography - instrumentation
Equipment Design
Implanted device
Implants
Magnetic sensors
Man-Machine Systems
myoelectric
Pattern Recognition, Automated
Prostheses and Implants
prosthesis control
Reproducibility of Results
Sensitivity and Specificity
Sensor systems
Sensors
Signal processing
Telemetry
Telemetry - instrumentation
Transplants & implants
Wireless sensor networks
wireless telemetry
Wires
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Summary:We have developed a multichannel electrogmyography sensor system capable of receiving and processing signals from up to 32 implanted myoelectric sensors (IMES). The appeal of implanted sensors for myoelectric control is that electromyography (EMG) signals can be measured at their source providing relatively cross-talk-free signals that can be treated as independent control sites. An external telemetry controller receives telemetry sent over a transcutaneous magnetic link by the implanted electrodes. The same link provides power and commands to the implanted electrodes. Wireless telemetry of EMG signals from sensors implanted in the residual musculature eliminates the problems associated with percutaneous wires, such as infection, breakage, and marsupialization. Each implantable sensor consists of a custom-designed application-specified integrated circuit that is packaged into a biocompatible RF BION capsule from the Alfred E. Mann Foundation. Implants are designed for permanent long-term implantation with no servicing requirements. We have a fully operational system. The system has been tested in animals. Implants have been chronically implanted in the legs of three cats and are still completely operational four months after implantation.
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ISSN:0018-9294
1558-2531
DOI:10.1109/TBME.2008.2005942