NASOLACRIMAL DRAINAGE SYSTEM IMPLANTS FOR DRUG THERAPY WITH DRUG CORE WITHIN SHEATH AND EXPANDABLE BODY

摘要

Implant 100 has drug core 110 is surrounded by sheath 120 which is in turn surrounded by an expandable body 140 so as to be able to retain the implant in a canalicular lumen and allow release of the drug material to the eye.