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US 9,173,770 B1Granted
Punctal plugs for insertion into the tear ducts to slow drainage of eye moisture and methods for the manufacture thereof
OwnerAmad Tayebiinventor
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Abstract
A method is disclosed for making a porous punctal plug by providing a multi-filament fibrous strand and extrusion coating the fibrous strand with a polymeric material coating and cutting the coated fibrous strand to adequate length for insertion into a mammal's punctal opening.
Claims10
A method of making a porous punctal plug for insertion into the punctal openings of the eyes of a mammal for reducing the drainage rate of eye fluids, said method comprising the steps of:
- providing a multi-filament strand,
- extrusion coating the exterior surface of said multi-filament strand with a polymeric material,
- and
- cutting the coated multi-filament strand to a desired length suitable for insertion into a punctal opening of said mammal's eye.
1 more element
Dependencies are inferred from the claim text.