US 12,239,527 B2
Method of absorbing or discharging water of ophthalmic medical device and ophthalmic medical device
Matsuhiko Nishizawa, Sendai (JP); Shotaro Yoshida, Sendai (JP); and Shinya Kusama, Sendai (JP)
Assigned to TOHOKU UNIVERSITY, Miyagi (JP)
Appl. No. 17/310,995
Filed by TOHOKU UNIVERSITY, Sendai (JP)
PCT Filed Mar. 4, 2019, PCT No. PCT/JP2019/008475
§ 371(c)(1), (2) Date Sep. 3, 2021,
PCT Pub. No. WO2020/178964, PCT Pub. Date Sep. 10, 2020.
Prior Publication US 2022/0117724 A1, Apr. 21, 2022
Int. Cl. A61F 2/16 (2006.01); A61F 9/00 (2006.01); A61F 9/007 (2006.01); A61N 1/32 (2006.01); G02C 7/04 (2006.01)
CPC A61F 2/16 (2013.01) [A61F 9/0017 (2013.01); A61F 9/007 (2013.01); G02C 7/04 (2013.01); A61N 1/325 (2013.01)] 26 Claims
OG exemplary drawing
 
1. A method of either absorbing or discharging or both absorbing and discharging water of a contact lens, the contact lens including a plurality of electrodes, the contact lens configured to generate an electroosmotic flow both inside and outside the contact lens, wherein
the contact lens has a line segment, wherein the line segment is along a surface of the contact lens and passes through a center of the surface of the contact lens and connects one end to another end, only one positive electrode and one negative electrode are on the line segment, and the positive electrode is provided at any position of 0% to 30% from the one end and the negative electrode is provided at any position of 0% to 30% from the other end with respect to a total length of 100% of the line segment.