Systems and methods for multi-stage sealing of contact lens packaging
AssigneeMenicon Singapore Pte Ltd.
InventorStephen D. Newman
Life of this patent
Estimating the term…
Abstract
A contact lens package includes a first package layer, a second package layer, a lens receiving area defined between the first and second package layers, and first and second seal portions. The first seal portion extends around a first portion of the lens receiving area. The second seal portion extends around a second portion of the lens receiving area. The second seal portion has different sealing properties than the first seal portion. The first seal portion may include a releasable seal between the first and second package layers, and the second seal portion may include a permanent seal between the first and second package layers.
Claims22
A method for manufacturing a contact lens package, comprising:
- providing a first package layer and a second package layer that define a lens receiving area therebetween;
- forming a first seal portion between the first and second package layers around all but a portion of a periphery of the lens receiving area;
- and
- forming a second seal portion between the first and second package layers to completely seal the lens receiving area.
A method of manufacturing a contact lens package, comprising:
- positioning a first package layer on a first press portion;
- positioning a contact lens on the first package layer;
- positioning a second package layer on the first package layer and covering the contact lens;
- creating a first seal portion between the first and second package layers with a second press portion;
- and
- creating a second seal portion between the first and second package layers with a third press portion;
- wherein creating the second seal portion includes creating the second seal portion as a permanent seal between the first and second package layers.
A method of assembling a contact lens package, comprising:
- arranging a first foil package layer and a second foil package layer at least partially overlapping each other with a contact lens positioned there between;
- creating a first sealed portion between the first and second foil package layers;
- and
- creating a second sealed portion between the first and second foil package layers.
Dependencies are inferred from the claim text.