Lacrimal fluid control device

Details Lacrimal fluid control device Lacrimal fluid control device

1992-02-21

1994-08-02

Hafer, Robert A.

Surgery

Devices transferring fluids from within one area of body to...

604294, A61M 2700

Patent

active

053341376

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.

REFERENCES:
patent: 2737953 (1956-03-01), Wiltein
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patent: 3949750 (1976-04-01), Freeman
patent: 4563182 (1986-01-01), Stoy et al.
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patent: 4747818 (1988-05-01), Edelschick
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patent: 4915684 (1990-04-01), MacKeen et al.
patent: 4959048 (1990-04-01), Seder et al.
patent: 5049142 (1981-06-01), Herrick et al.
patent: 5053030 (1981-05-01), Herrick et al.

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