Sawan M, Duval F, Hassouna M M, Li J S, Elhilali M M, Lachance J, Leclair M, Pourmehdi S, Mouïne J
Department of Electrical Engineering, Ecole Polytechnique, Montréal, P.Q., Canada.
IEEE Trans Biomed Eng. 1992 Jun;39(6):600-9. doi: 10.1109/10.141198.
In the present paper we describe a personal computer interface of a multichannel implantable urinary prosthesis. This system is composed of two main parts: the first one is internal and consists of an implant using a 4-microns CMOS gate array chip controlling a wide variety of waveforms via eight monopolar channels. The second, an external controller featuring a versatile software, a PCB card plugged in a portable microcomputer, and a radiofrequency-coupled technique. This device is used to transmit the power, the data and the synchronization clock to the implant by a simple binary signal modulating a 20 MHz carrier. We also report the features of implant encapsulation and electrode design and fabrication. In the experimental phase, we studied the effect of early electric stimulation of the bladder during the spinal shock phase in the dog. We present the operative techniques that enabled us to perform chronic electrostimulation of the sacral roots and discuss the results.
在本文中，我们描述了一种多通道植入式泌尿假体的个人计算机接口。该系统由两个主要部分组成：第一部分是内部部分，包括一个植入物，它使用一个4微米的CMOS门阵列芯片，通过八个单极通道控制多种波形。第二部分是外部控制器，其具有通用软件、插入便携式微型计算机的印刷电路板卡以及射频耦合技术。该设备用于通过调制20 MHz载波的简单二进制信号将功率、数据和同步时钟传输到植入物。我们还报告了植入物封装以及电极设计与制造的特点。在实验阶段，我们研究了犬脊髓休克期早期膀胱电刺激的效果。我们介绍了使我们能够对骶神经根进行慢性电刺激的手术技术，并讨论了结果。
