Lacrimal duct occluder

Details Lacrimal duct occluder Lacrimal duct occluder

1989-01-17

1990-09-25

Hafer, Robert A.

Surgery

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

With flow control means

606107, 623 6, A61M 500

Patent

active

049590480

ABSTRACT:
A reversible, flexible, lacrimal duct occluder is formed of a shaft having a low profile cap at one end and a rounded tip at the other end. At least one, preferably 1-3, conical ranges are forward on the shaft between the ends. The rounded tip enters the punctum followed by leading edge of the range(s) until the occluder bends and enters the horizontal canalicular canal. A series of occluders having 1-3 ranges and varying lengths can be provided to accommodate the different canalicular geometries of different individuals. The occluder is readily inserted without the need to use any special introducer tool and is easily removed from the canaliculus of the patient.

REFERENCES:
patent: 3949750 (1976-04-01), Freeman
patent: 4660546 (1987-04-01), Herrick et al.
patent: 4764170 (1988-08-01), Drews

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