Surgery – Means for introducing or removing material from body for... – Treating material applied to or removed from external...
Patent
1994-07-26
1995-12-05
Green, Randall L.
Surgery
Means for introducing or removing material from body for...
Treating material applied to or removed from external...
6048901, 424427, 623 4, A61M 3500
Patent
active
054724368
ABSTRACT:
A device for delivering an anesthetic to the eye, comprising a thin, porous, substantially planar annular body. The inner diameter of the device is slightly greater than the diameter of the limbus or corneal-scleral junction of the eye, and the outer diameter, slightly smaller than the arcuate distance between the upper and lower conjunctival sacs. The device is made of a flexible material such as methylcellulose-based filter paper, thus, it is able to flex to conform to the shape of the eyeball. The device is positioned in the eye with the inner edge circumscribing the limbus and the outer edge extending into the conjunctival sacs. A liquid such as a topical anesthetic, antibiotic, and so forth is added to the body by means of an eye dropper or other suitable means. The liquid spreads rapidly and uniformly throughout the body and diffuses into the eye. If desired, a plurality of equally-spaced radial slits may be formed in the body to enable it to conform to the shape of the eye.
REFERENCES:
patent: 3416530 (1968-07-01), Ness
patent: 3630200 (1971-12-01), Higuchi
patent: 3995635 (1976-12-01), Higuchi et al.
patent: 4179497 (1979-12-01), Cohen et al.
patent: 4343787 (1982-08-01), Katz
patent: 4484922 (1984-11-01), Rosenwald
patent: 5354331 (1994-10-01), Schachar
Green Randall L.
Mann Michael A.
Polutta Mark O.
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