Lacrimal fluid control device
US5334137A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 21, 1992 |
| Grant date | Aug 2, 1994 |
| Priority date | — |
| Expiry date | Feb 21, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/12159
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
There is provided a lacrimal fluid control device for blocking the flow of lacrimal fluid away from the surface of a wearer's eye through a punctal opening and into an associated caniculus. The lacrimal fluid control device includes a tip portion comprising a generally inverted truncated cone and a head portion comprising a generally enlarged dome. The tip is operable to facilitate placement of the lacrimal fluid control device at least partially through a wearer's punctal opening and the enlarged dome or head portion prevents drift of the lacrimal fluid control device completely through the punctal opening and into a generally vertical portion of an associated canaliculus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.