Development of Artificial Urethral Sphincter by Ionic Polymer-Metal Composite
Date Issued
2007
Date
2007
Author(s)
Lai, Yao-Tong
DOI
zh-TW
Abstract
The main point of this thesis is focus on artificial sphincter for urinary incontinence, which uses ionic polymer metal composite (IPMC) and an elastic polymer, polydimethylsiloxane (PDMS) to make this project come true. IPMC is a kind of material which will have more than 40 % shape change under electrical stimulation. Combine IPMC and PDMS to make artificial sphincter in real, surround urinary tract and hold it. We also doing some experiments about characteristics of IPMC, including bending angle, the relationship between thickness and bending displacement, and force generation. According to experiment result, IPMC's bending angle mostly the same after 85 times uses. As the thickness of IPMC get thinner, the bending displacement will be higher；and the force generation will be larger if the length of IPMC be shorter. According to urodynamic study, our model can offer up to 100 cm-H2O when voltage moved, and decrease about 10 cm-H2O or 20 cm-H2O when voltage was 3 or 4.
Subjects
離子性聚合物－金屬複合材料
人工括約肌
IPMC
artificial urethral sphincter
Type
thesis
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