Tanaka M, Hirano K, Goto H, Namima T, Uchi K, Jiang Z W, Matsuki H, Tanahashi Y, Orikasa S, Chonan S
Department of Mechatronics and Precision Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan.
Biomed Mater Eng. 1999;9(2):97-112.
This paper is concerned with the development of an artificial urethral valve driven by shape memory alloy actuators, which is attached onto the urethra of a urinary incontinence sufferer for treating the involuntary micturition. Three types of compact cylindrical valves are assembled and their opening and closing functions are examined experimentally. The updated valve is heated and opened by using the transcutaneous energy transformer consisting of a pair of flexible spiral-formed copper wire coils. The experiment using the canine urinary canal verifies that the total system of the valve and the transformer works well as an artificial sphictor muscle and controls the urinary flow through the canal appropriately.
本文关注的是一种由形状记忆合金致动器驱动的人工尿道瓣膜的研发，该瓣膜附着在尿失禁患者的尿道上以治疗不自主排尿。组装了三种紧凑型圆柱形瓣膜，并对其开启和关闭功能进行了实验研究。更新后的瓣膜通过使用由一对柔性螺旋形铜线线圈组成的经皮能量变换器进行加热并打开。在犬类尿道上进行的实验证实，瓣膜和变换器的整个系统作为一种人工括约肌能正常工作，并能适当地控制通过尿道的尿流。
