Abstract: A urethral cuff for use in an artificial urinary sphincter is provided. The urethral cuff has a backsheet forming the body of the urethral cuff. The backsheet is composed of a first portion and a second portion wherein the first portion has a first inflatable cushion and a second inflatable cushion which are separated from each other by a gap and the second portion has a third inflatable cushion. The third inflatable cushion is located such that it corresponds on top of said gap when the second portion is folded on top of the first portion such that when the urethral cuff is implanted around the urethra of a patient and all three inflatable cushions are inflated, a length of the urethra is flattened among the inflatable cushions resulting in occlusion of the urethra.

Abstract: An artificial sphincter comprising an inflatable occlusion means for occluding a body passage, a stretchable fluid reservoir, a pump means and an occlusion means. A pressurizing fluid is selectively transferred from the occlusion means to the reservoir for deflating the occlusion means so that a blocked body passage may be opened. The artificial sphincter also comprises a semipermeable check valve which always allows fluid flow towards the stretchable fluid reservoir. The pump means comprises a check valve located in between the second port of the pump and the bulb. The check valve comprises a ball, a blockage seat and one or more resilient lips located circumferentially above the ball. The check valve blocks fluid flow towards the occlusion means and allows fluid flow towards the fluid reservoir when, in use, the bulb is squeezed.

Abstract: An artificial sphincter includes an inflatable occlusion means for occluding a body passage, a stretchable fluid reservoir, a pump means and an occlusion means. A pressurizing fluid is selectively transferred from the occlusion means to the reservoir for deflating the occlusion means so that a blocked body passage may be opened. The artificial sphincter also includes a semipermeable check valve which always allows fluid flow towards the stretchable fluid reservoir. A semipermeable check valve allows only a restricted fluid flow from the stretchable fluid reservoir. A pressure sensitive check valve is located in between the pressure compensation balloon and the lumen of the balloon holder. The pressure sensitive check valve always allows fluid flow from the pressure compensation balloon towards the lumen so that the fluid contained in the pressure compensation balloon is freely flowable towards the inflatable occlusion means.

Abstract: An artificial sphincter including an inflatable occlusion means for occluding a body passage, a stretchable fluid reservoir and a pump means. The pump means has a first port in fluid communication with the occlusion means and a second port in fluid communication with the fluid reservoir for selectively transferring an isotonic fluid from the occlusion means to said reservoir to deflate said occlusion means. The artificial sphincter further includes a pressure compensation balloon which is attached to the fluid reservoir and which, in use, is to be implanted in the abdomen of a patient.

Abstract: An artificial sphincter including an inflatable occlusion means for occluding a body passage, a stretchable fluid reservoir and a pump means. The pump means has a first port in fluid communication with the occlusion means and a second port in fluid communication with the fluid reservoir for selectively transferring an isotonic fluid from the occlusion means to said reservoir to deflate said occlusion means. The artificial sphincter further includes a pressure compensation balloon which is attached to the fluid reservoir and which, in use, is to be implanted in the abdomen of a patient.