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US 2022/0064792 A1Published application
Partial coating of intraocular lenses using spatial atomic layer deposition
AssigneeInnovalens B.V.
InventorsMartin Dinant Bijker, Emerentius Marie Josephus Antonius Van Dijk, Theophilus Bogaert, Klaas Sikkens
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Abstract
A system and method for efficiently modifying the surface of an intraocular lenses to reduce tackiness and improve lens unfold time and unfold time consistency, and a product created using the system and method, is disclosed. In some embodiments, the system and method utilizes at least part of a lens-forming device as a mask.
Claims20
A method for coating an intraocular lens, the intraocular lens having a lens surface, the method comprising:
- delivering the intraocular lens to a conveyor,
- activating a processing device, the processing device comprising a plurality of coating segments, each coating segment comprising:
- a first inert gas source configured to provide inert gas,
- a precursor source configured to provide a precursor gas;
- a second inert gas source configured to provide inert gas;
- and
- a plasma source configured to provide plasma;
- wherein, upon activation, the first inert gas source provides inert gas, the precursor source provides precursor gas, the second inert gas source provides inert gas, and the plasma source provides plasma;
- and
- passing the intraocular lens from the conveyor through the processing device using relative movement between the processing device and the conveyor, wherein a layer of coating is applied to the intraocular lens each time the intraocular lens passes through a coating segment.
7 more elements
A system for atomic layer deposition on a surface of an intraocular lens, the system comprising:
- a station for receiving the intraocular lens, the intraocular lens being contained within a substrate holder,
- a processing device, the processing device comprising a plurality of coating segments, each coating segment comprising:
- a first inert gas source for providing inert gas;
- a precursor injector source for providing a precursor gas;
- a second inert gas source for providing inert gas;
- and
- a plasma source for providing plasma;
- wherein the processing device is arranged for relative motion between the substrate holder and the coating segments so that the surface of the intraocular lens is exposed to the plurality of coating segments.
5 more elements
Dependencies are inferred from the claim text.