title: Biomechanical modeling of the rectum for the design of a novel artificial anal sphincter.
abstract: This paper discusses biomechanical issues that are related to the option of a novel artificial anal sphincter around the human rectum. The prosthesis consists of a compression cuff system inside and a reservoir cuff system outside, which is placed around the debilitated sphincter muscle. The micropump shifts fluid between the cuffs and thus takes over the expansion and compression function of the sphincter muscle. However, the human rectum is not a rigid pipe, and motion in it is further complicated by the fact that the bowel is susceptible to damage. With the goal of engineering a safe and reliable machine, the biomechanical properties of the in-vivo porcine rectum are studied and the tissue ischemia is analyzed.
authors: Department of Automation, College of Mechatronics Engineering and Automation, Shanghai University. zp0331@hotmail.com
authors: Peng
authors: P
authors: Zan
authors: Guozheng
authors: G
authors: Yan
authors: Hua
authors: H
authors: Liu
authors: Banghua
authors: B
authors: Yang
authors: Yujuan
authors: Y
authors: Zhao
authors: Nianting
authors: N
authors: Luo
mesh_terms: D000465:Algorithms; D001003:Anal Canal / Q000033:anatomy & histology* / Q000502:physiology; D000818:Animals; D016880:Anisotropy; D001187:Artificial Organs; D001696:Biomechanical Phenomena; D001698:Biomedical Engineering / Q000379:methods*; D006801:Humans; D007511:Ischemia / Q000517:prevention & control; D008638:Mesenteric Arteries / Q000502:physiology; D008953:Models, Anatomic; D011312:Pressure; D011474:Prosthesis Design / Q000379:methods*; D012007:Rectum / Q000033:anatomy & histology* / Q000098:blood supply / Q000502:physiology; D012039:Regional Blood Flow; D013552:Swine