Development of a novel, remote-controlled artificial bowel sphincter through microsystems technology.
Development of a novel, remote-controlled artificial bowel sphincter through microsystems technology.
复制标题
DOI：
10.1111/j.1525-1594.2006.00312.x
复制
发表时间：
2006-11
影响因子：
2.4
通讯作者：
H. Schrag;O. Ruthmann;A. Doll;F. Goldschmidtböing;P. Woias;U. Hopt
中科院分区：
文献类型：
--
作者：
H. Schrag;O. Ruthmann;A. Doll;F. Goldschmidtböing;P. Woias;U. Hopt
人工括约肌原型已经开发出来，专为大便失禁患者舒适的远程控制而设计。人工括约肌在一个单元中包括一个储液器、一个闭塞套囊和一个基于压电技术的微型泵。在离体猪肛管周围和体内对节制和植入管理进行了评估。假体的设计降低了闭塞压力并允许低充气量（6.5-16 mL）。 24 至 58 mm Hg 之间的工作压力表明肠道缺血性损伤的风险较小。在不给电池充电的情况下，预计运行时间约为 7 天。这种新颖的原型是一种高度集成的假体，可放置在肛管或直肠下部周围，通过舒适的控制实现节制。
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.