US 12,453,653 B2
Materials and methods for punctal plugs
Kenneth Curry, Oceanside, CA (US); and William Tran, San Clemente, CA (US)
Assigned to GLAUKOS CORPORATION, San Clemente, CA (US)
Filed by GLAUKOS CORPORATION, San Clemente, CA (US)
Filed on May 13, 2022, as Appl. No. 17/663,272.
Claims priority of provisional application 63/188,733, filed on May 14, 2021.
Prior Publication US 2022/0362055 A1, Nov. 17, 2022
Int. Cl. A61F 9/00 (2006.01); C08L 1/28 (2006.01); C08L 5/08 (2006.01)
CPC A61F 9/0017 (2013.01) [C08L 1/286 (2013.01); C08L 5/08 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A punctum plug, wherein the punctum plug is constructed of a monolithic material comprising a high-molecular-weight polysaccharide and a plasticizer, such that the punctum plug is configured to turn approximately 90 degrees upon insertion into a canaliculus of an eye, wherein the high-molecular-weight polysaccharide includes a cellulosic polymer, and wherein the monolithic material is neither a tube nor a sleeve.