Patent ID: 9474645
Filing Date: 2016-10-25
CPC Classification: A61F,A61K

Claim Text:
1. A punctal plug, the punctal plug comprising: an elongated body having an enlarged segment on a first end and a collarette on a second end, the elongated body being configured for insertion into a lacrimal canaliculus of a patient; a first cap affixed to and extending from an end of the enlarged segment, the first cap being configured as a carrier for one or more therapeutic agents for the controlled release therefor directly into the lacrimal canaliculus; and a second cap affixed to the collarette, the second cap comprising a dome shaped top portion which extends over and covers the entire collarette, and a stem portion configured to extend into the elongated body, the second cap being configured as a carrier for one or more therapeutic agents for the controlled release therefor, wherein the stem portion is configured as a reservoir for additional therapeutic agent and supplies the additional therapeutic agent directly to the dome portion of the second cap, the dome shaped portion and the stem portion being formed from the same material, the dome shaped top portion of the second cap extends past the collarette for the release of the one or more therapeutic agents directly into the tear film on the eye.