S Chonan et al 1997 Smart Mater. Struct. 6 410 doi:10.1088/0964-1726/6/4/004
Development of an artificial urethral valve using SMA actuators
S Chonan
, Z W Jiang, J Tani§, S Orikasa||, Y Tanahashi¶, T Takagi§, M Tanaka and J Tanikawa
The development of an artificial urethral valve for the treatment of urinary incontinence which occurs frequently in the aged is described. The prototype urethral valve is assembled in hand-drum form with four thin shape memory alloy (SMA) (nickel - titanium alloy) plates of 0.3 mm thickness. The shape memory effect in two directions is used to replace the urinary canal sphincter muscles and to control the canal opening and closing functions. The characteristic of the SMA is to assume the shape of a circular arc at normal temperatures and a flat shape at higher temperatures. Experiments have been conducted using a canine bladder and urinary canal.
- PACS
- Subjects
- Dates
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Issue 4 (August 1997)
Received 17 March 1997, accepted for publication 22 April 1997
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Development of an artificial urethral valve using SMA actuators
S Chonan et al 1997 Smart Mater. Struct. 6 410
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Jakob Hansen et al JHEP11(2009)016
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