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Shape Memory Tube Plug for Fine-control of Intraocular Pressure by Glaucoma Devices

Authors
Oh, Won TaekLee, Jung BokChoi, WungrakBae, Hyoung WonKim, Chang SooKim, Chan YunSung, Hak-Joon
Issue Date
Jul-2020
Publisher
AMER CHEMICAL SOC
Keywords
glaucoma; shape memory; self-diameter expansion; tube insertion; intraocular pressure
Citation
ACS BIOMATERIALS SCIENCE & ENGINEERING, v.6, no.7, pp 3784 - 3790
Pages
7
Journal Title
ACS BIOMATERIALS SCIENCE & ENGINEERING
Volume
6
Number
7
Start Page
3784
End Page
3790
URI
https://scholarworks.sookmyung.ac.kr/handle/2020.sw.sookmyung/1361
DOI
10.1021/acsbiomaterials.0c00649
ISSN
2373-9878
2373-9878
Abstract
As a standard approach to treating glaucoma, a silicone tube device is inserted into the eye to drain water and thereby lower the intraocular pressure (IOP). However, the fixed diameter of the tube often results in too much initial water drain. Suture-sheaving of the outer tube wall also leads to random IOP drops over time. In this study, self-expansion of the inner tube diameter was achieved by inserting a shape memory tube into the silicone tube. The difference in controlling small to large IOP drops before and after tube diameter expansion was demonstrated via computational modeling, a flow pumping system, and rabbit experiments.
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