Punctum plug having a thin elongated lip and a distal starting t

Details Punctum plug having a thin elongated lip and a distal starting t Punctum plug having a thin elongated lip and a distal starting t

1997-10-16

2000-11-21

Yu, Mickey

Prosthesis (i.e., artificial body members), parts thereof, or ai

Eye prosthesis

604 8, A61F 214

Patent

active

061496847

ABSTRACT:
A punctum plug adapted to be inserted into the punctum opening of an eye and into the horizontal sac portion of the horizontal canaliculus is shown. The punctum plug, or implant, comprises an elongated member having a pair of ends wherein one of the pair of ends includes a collapsible flared section, or internal retaining member, which has a sloped or curved outer surface. The other end of the pair of ends includes a thin elongated lip, or external retaining member, to engage the edge of the punctum opening. The elongated member and collapsible flared section are formed of a dimension to pass through the punctum opening of an eye. The collapsible flared section has an extended position and a collapsed position. As the collapsible flared section passes through the punctum opening and into the section of the canaliculus located between the punctum opening and the ampula or horizontal sac, a clamping force is developed to collapse the collapsible flared section. The collapsible flared section passes into the ampula and reverts back to its substantially extended position. A method for treating external eye condition utilizing the punctum plug is also shown.

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