Detecting coatings on intraocular lens insertion devices and methods of manufacturing the devices
AssigneeJohnson & Johnson Surgical Vision, Inc.
InventorsAhmed Helmy, Peiwen Cheng
Life of this patent
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Abstract
Methods for detecting a coating on a surface of an intraocular lens delivery device and methods of manufacturing the device are provided. A method includes forming the coating on the device, the coating including a lubricious-enhancing component and a fluorescing component, illuminating the fluorescing component to cause the fluorescing component to emit a glow, and determining characteristics of the coating on the device based on the glow of the fluorescing component.
Claims20
A method of detecting a characteristic of a coating on an inner surface of an intraocular lens (IOL) cartridge defining a lumen for receiving an IOL comprising:
- forming the coating on the inner surface of the IOL cartridge, the coating including a lubricious-enhancing component, a fluorescing component;
- illuminating the fluorescing component to cause the fluorescing component to emit light;
- and
- determining characteristics of the coating on the inner surface of the IOL cartridge based on a light intensity of the fluorescing component, including measuring a first light intensity at a first reference location on the coating and setting the first light intensity as a reference value, comparing light intensity measurements taken from other locations on the coating to the reference value and determining a uniformity of the thickness of the coating over the inner surface of the IOL cartridge based on the comparisons.
A method of manufacturing an intraocular lens (IOL) insertion device comprising:
- molding a cartridge of the insertion device, the cartridge having an inner surface defining a lumen for receiving the IOL;
- forming a coating on the inner surface of the cartridge, the coating including a lubricious-enhancing material and a fluorescing component;
- energizing the fluorescing compound in the coating to cause a light emission;
- and
- measuring the light emission to determine a characteristic of the coating, including comparing a color of the light emission with a yellow index table to determine a thickness of the coating.
Dependencies are inferred from the claim text.