Contact lens package with reduced head space

US10092075B2 · kind B2 · utility

Assignee

• Johnson & Johnson Vision Care, Inc. · US

Inventors

• Vincent Barre · Jacksonville, US
• Edward R. Kernick · Jacksonville, US
• Dominic P. Gourd · Ponte Vedra, US
• Douglas Lilac · Pomona Park, US
• Charles Medovich · Jacksonville, US
• Jonathan Patrick Adams · Jacksonville, US

Key dates

• Filing date: Jul 20, 2017
• Grant date: Oct 9, 2018
• Expiry date: Jul 20, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B65D2585/545
• WIPO field: Handling
• WIPO sector: Mechanical engineering

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”.