Dual-mode valve pressure regulating system
作者： John H. Burton
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摘要: A prosthetic sphincter for controlling urinary incontinence is provided with a dual-mode pressure regulating system designed to establish continence yet prevent damage the bladder from excessive pressures. In conventional four-valve system, valve output of deflation pump replaced by two-stage unit having cracking and holding in parallel relationship, both valves permitting only one-way flow required open valve. resistor placed series
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