Rizk Michael, Bossetti Chad A, Jochum Thomas A, Callender Stephen H, Nicolelis Miguel A L, Turner Dennis A, Wolf Patrick D
Department of Biomedical Engineering, Duke University, Durham, NC 27708, USA.
J Neural Eng. 2009 Apr;6(2):026002. doi: 10.1088/1741-2560/6/2/026002. Epub 2009 Mar 2.
A fully implantable neural data acquisition system is a key component of a clinically viable brain-machine interface. This type of system must communicate with the outside world and obtain power without the use of wires that cross through the skin. We present a 96-channel fully implantable neural data acquisition system. This system performs spike detection and extraction within the body and wirelessly transmits data to an external unit. Power is supplied wirelessly through the use of inductively coupled coils. The system was implanted acutely in sheep and successfully recorded, processed and transmitted neural data. Bidirectional communication between the implanted system and an external unit was successful over a range of 2 m. The system is also shown to integrate well into a brain-machine interface. This demonstration of a high channel-count fully implanted neural data acquisition system is a critical step in the development of a clinically viable brain-machine interface.
全植入式神经数据采集系统是临床可行的脑机接口的关键组成部分。这种类型的系统必须在不使用穿过皮肤的导线的情况下与外界通信并获取电力。我们展示了一种96通道全植入式神经数据采集系统。该系统在体内执行尖峰检测和提取，并将数据无线传输到外部单元。通过电感耦合线圈无线供电。该系统被急性植入绵羊体内，并成功记录、处理和传输神经数据。植入系统与外部单元之间在2米范围内成功进行了双向通信。该系统还显示出能很好地集成到脑机接口中。这种高通道数全植入式神经数据采集系统的展示是临床可行的脑机接口开发中的关键一步。
