Weir Richard F ff, Troyk Phil R, DeMichele Glen A, Kerns Douglas A, Schorsch Jack F, Maas Huub
Biomechatronics Development Laboratory, Rehabilitation Institute of Chicago, Chicago, IL 60611, USA.
IEEE Trans Biomed Eng. 2009 Jan;56(1):159-71. doi: 10.1109/TBME.2008.2005942.
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.
我们开发了一种多通道肌电图传感器系统，该系统能够接收和处理来自多达32个植入式肌电传感器（IMES）的信号。植入式传感器用于肌电控制的吸引力在于，可以在肌电图（EMG）信号的源头进行测量，从而提供相对无串扰的信号，这些信号可被视为独立的控制位点。一个外部遥测控制器接收植入电极通过经皮磁链路发送的遥测数据。同一链路为植入电极提供电力和指令。对植入残余肌肉组织中的传感器所采集的EMG信号进行无线遥测，消除了与经皮导线相关的问题，如感染、断裂和囊袋化。每个可植入传感器都包含一个定制设计的专用集成电路，该电路被封装在阿尔弗雷德·E·曼恩基金会生产的生物相容性射频生物胶囊中。植入物设计用于长期永久植入，无需维护。我们有一个完全可运行的系统。该系统已在动物身上进行了测试。植入物已长期植入三只猫的腿部，植入四个月后仍完全可运行。
