US 10,092,075 B2 · Contact lens package with reduced head space

Abstract

The packages described by this invention all have reduced “head space,” that is, the distance from lid to lens. Packages contain dimples to achieve this reduced head space. Specifically, packages are designed with dimple sag equal to or less than 1.90-mm, or volume displaced equal to or less than 360 μl. Combined with the existing primary packaging, it has been found that such conditions provide for reduction in folded lens rate during shipping and handling. As well, lenses stored or having an extended time in low head space packages in a “foil down” orientation now have characteristics closer lenses stored in a “foil up orientation”.

Claims7

Dependent claims

A lens package, comprising:

a bulb having a rim and comprising a volume;
a generally thin cover placed over said bulb, said cover having a generally flat configuration;
a contact lens contained in solution in said bulb;
such that said cover is sealed to said bulb at said rim, and said cover formed from a generally flexible material, such that when said cover is sealed to said bulb, a dimple is formed in said cover, said dimple having a concavity defining a sag depth, such that the concavity displaces an amount of volume from the volume of the bulb;
and
wherein the dimple has an emboss, and said emboss having a configuration that prevents said contact lens from interacting with the interior side of the cover.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/654,747Filed 20 Jul 2017 · continuation

Priority

15 Mar 2013

Published

US 2017/0311689 A12 Nov 2017

Granted

9 Oct 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

A45C 11/005
Receptacles for purposes not provided for in groups A45C1/00-A45C9/00: contact lens cases
B65D 81/22
Providing specific environment for contents, e.g. temperature above or below ambient: in moist conditions or immersed in liquids
B65D 85/00
Containers, packaging elements or packages, specially adapted for particular articles or materials
B65D 2585/545
For articles of special shape not otherwise provided for: contact lenses

Family

Application61/788,952Us provisional application · filed 15 Mar 2013

Application14/185,207Parent of this continuation · filed 20 Feb 2014

Application15/234,354Parent of this continuation · filed 11 Aug 2016

US 2017/0311689 A1Pre-grant publication · published 2 Nov 2017

US 9,723,903 B2Parent of this continuation

US 9,439,487 B2Parent of this continuation

US 2014/0262844 A1Published application

US 2016/0345696 A1Published application

US 10,092,075 B2This patent

From the US filing history. Foreign family members aren’t listed.

Contact lens package with reduced head space

Life of this patent

Contact lens package with reduced head space

Life of this patent

Abstract

Claims7