Development of a Novel, Remote-Controlled Artificial Bowel Sphincter Through Microsystems Technology
Article first published online: 25 OCT 2006
Volume 30, Issue 11, pages 855–862, November 2006
How to Cite
Schrag, H.-J., Ruthmann, O., Doll, A., Goldschmidtböing, F., Woias, P. and Hopt, U. T. (2006), Development of a Novel, Remote-Controlled Artificial Bowel Sphincter Through Microsystems Technology. Artificial Organs, 30: 855–862. doi: 10.1111/j.1525-1594.2006.00312.x
- Issue published online: 25 OCT 2006
- Article first published online: 25 OCT 2006
- Received January 2006; revised May 2006.
- Artificial anus;
- Sphincter prosthesis;
- Fecal incontinence;
- Piezo technology
Abstract: An artificial sphincter prototype has been developed, specifically designed for comfortable remote control by fecally incontinent patients. The artificial sphincter includes a fluid reservoir, an occlusive cuff, and a micropump based on piezo-technology in a single unit. Continence and implantation management were evaluated around isolated porcine anal canals and in vivo. The design of the prosthesis reduces the occlusion pressure and allows low inflation volumes (6.5–16 mL). Operating pressures between 24 and 58 mm Hg indicate a minor risk of ischemic injury to the bowel. The operation time is estimated at about 7 days with no recharging of the battery. The novel prototype is a highly integrated prosthesis for placement around the anal canal or lower rectum, effecting continence with comfortable control.