Stango Antonietta, Yazdandoost Kamya Yekeh, Farina Dario
Annu Int Conf IEEE Eng Med Biol Soc. 2015;2015:4085-8. doi: 10.1109/EMBC.2015.7319292.
In the last few years the use of implanted devices has been considered also in the field of myoelectric hand prostheses. Wireless implanted EMG (Electromyogram) sensors can improve the functioning of the prosthesis, providing information without the disadvantage of the wires, and the usability by amputees. The solutions proposed in the literature are based on proprietary communication protocols between the implanted devices and the prosthesis controller, using frequency bands that are already assigned to other purposes. This study proposes the use of a standard communication protocol (IEEE 802.15.6), specific for wireless body area networks (WBANs), which assign a specific bandwidth to implanted devices. The propagation losses from in-to-on body were investigated by numerical simulation with a 3D human model and an electromagnetic solver. The channel model resulting from the study represents the first step towards the development of myoelectric prosthetic hands which are driven by signals acquired by implanted sensors. However these results can provide important information to researchers for further developments, and manufacturers, which can decrease the production costs for hand prostheses having a common standard of communication with assigned frequencies of operation.
在过去几年中，植入式设备在肌电假手领域也得到了应用。无线植入式肌电图（EMG）传感器可以改善假肢的功能，提供无电线缺点的信息以及截肢者的可用性。文献中提出的解决方案基于植入式设备与假肢控制器之间的专有通信协议，使用已分配用于其他目的的频段。本研究提出使用一种针对无线体域网（WBAN）的标准通信协议（IEEE 802.15.6），该协议为植入式设备分配特定带宽。通过使用三维人体模型和电磁求解器进行数值模拟，研究了体内到体表的传播损耗。该研究得出的信道模型是朝着由植入式传感器采集的信号驱动的肌电假手发展迈出的第一步。然而，这些结果可以为研究人员的进一步发展以及制造商提供重要信息，制造商可以降低具有共同通信标准和指定工作频率的手部假肢的生产成本。
