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US 9,636,425 B2Granted
Method of dry dye delivery for staining the eye
AssigneeFocal Point Technologies, LLC
InventorAmir Sahba Jalali
Life of this patent
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Abstract
A device and method for staining the eye of a patient in need of the same includes the introduction, onto the surface of the eye, of a dry powder form at a dye suitable for staining the eye. The dry powder form of the dye is introduced onto the surface of the eye without the use of a substrate at or near the eye's surface.
Claims5
A method of staining an eye of a patient in need thereof with a powdered dye without contacting the surface of the eye with a physical object, the method comprising:
- (1) providing a delivery device comprising a sealed container, an actuator, a powdered dye within the sealed container, and a propellant under pressure within the sealed container;
- and
- (2) delivering the powdered dye to the surface of the eye by engaging the actuator to dispense the powdered dye from the delivery device,
- wherein the powdered dye is selected from the group consisting of Fluorescein, Lissamine Green, Rose Bengal, and combinations thereof;
- and
- the actuator is metered such that a single engagement of the actuator dispenses a predetermined amount of the powdered dye from the delivery device.
3 more elements
Dependencies are inferred from the claim text.