Brindley G S
J Neurol Neurosurg Psychiatry. 1977 Apr;40(4):358-69. doi: 10.1136/jnnp.40.4.358.
An implant has been designed which, in the baboon, will empty the bladder almost completely, or close the urethra so that urine does not leak out despite a contraction of the detrusor muscle. Electrodes on the 1st and 2nd sacral anterior nerve roots (corresponding roughly to the 3rd and 4th sacral in man) suffice for both actions. Closing the urethra or emptying the bladder artificially in this way seems to cause conscious, neurologically intact, baboons no discomfort. Implants have remained in place for over two years, and have emptied the bladder artificially 12 times a day for many weeks, without deterioration of function.
已经设计出一种植入物，在狒狒身上，它几乎能完全排空膀胱，或者闭合尿道，这样即使逼尿肌收缩，尿液也不会漏出。第一和第二骶前神经根（大致相当于人类的第三和第四骶神经）上的电极足以实现这两种功能。以这种方式人工闭合尿道或排空膀胱似乎不会给有意识的、神经功能完好的狒狒带来不适。植入物已在原位放置了两年多，并且在许多周内每天人工排空膀胱12次，功能没有恶化。
