Volume 50, Issue 3, Pages 574-580 (September 2006) A New Artificial Urinary Sphincter with Conditional Occlusion for Stress Urinary Incontinence: Preliminary Clinical Results  Sarah L. Knight, Judith Susser, Tamsin Greenwell, Anthony R. Mundy, Michael D. Craggs  European Urology  Volume 50, Issue 3, Pages 574-580 (September 2006) DOI: 10.1016/j.eururo.2006.03.065 Copyright © 2006 European Association of Urology Terms and Conditions

Fig. 1 (A) The new artificial urinary sphincter with conditional occlusion showing individual components: (1) urethral occlusion cuff, (2) pressure-regulating balloon, (3) stress relief balloon, (4) pump and valve assembly unit with self-sealing port for pressurisation. (B) Operation of the new AUS: (1) The urethral occlusion cuff is deflated by squeezing the pump unit located in the scrotum, fluid is transferred to the pressure-regulating balloon and the patient can void through the empty cuff. (2) The cuff re-inflates through a slow return valve; rapid re-inflation can be achieved by squeezing the top of the pump unit. The cuff exerts sufficient pressure to maintain continence without compromising the urethral tissues. (3) During periods of raised intra-abdominal pressure, the fluid from the stress relief balloon is transferred to the cuff to provide additional pressure to maintain continence. European Urology 2006 50, 574-580DOI: (10.1016/j.eururo.2006.03.065) Copyright © 2006 European Association of Urology Terms and Conditions

Fig. 2 Bar chart showing mean (±SD) volume intake, voided and leakage over a 7-day period before implantation, after pressurisation and at follow-up investigations for all patients. Paired Student t test performed on leakage data; *p<0.05. European Urology 2006 50, 574-580DOI: (10.1016/j.eururo.2006.03.065) Copyright © 2006 European Association of Urology Terms and Conditions

Fig. 3 Continence Index derived from 7-day voiding diaries for all patients. Individual points represent mean (and SD) of Continence Index at pre-implantation, activation and postimplantation investigations for all patients. Paired Student t test; **p<0.01. European Urology 2006 50, 574-580DOI: (10.1016/j.eururo.2006.03.065) Copyright © 2006 European Association of Urology Terms and Conditions