Han Cui,Zhigang Li,Edgar V. Menezes,Aruna Nathan,Michael J. Trezza, II
申请号：
US11759269
公开号：
US09474645B2
申请日:
2007.06.07
申请国别(地区):
US
年份:
2016
代理人:
摘要：
The invention provides punctal plugs for the delivery of active agent to one or both of the tear fluid of the eye and to the nasolacrimal duct that comprise a body, at least one cap, and optionally a collarette.
