Deformable Slider Contact Lens Blister Package
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Solution Overview
Problem
Contact lens packaging requires users to touch the lens, risking contamination and improper orientation for eye placement, which can introduce germs and complicate handling.
Innovation Solution
A contact lens blister package design featuring a deformable slider and hinged shell that allows for easy lens removal without touching the inner surface, enabling direct placement on the eye by lifting the lens out of the packaging solution and presenting it in a suitable orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the contact lens is placed in a cavity with a sealed blister package, then the lens is protected in a sterile environment, but the user must touch the lens to remove it from the cavity, increasing contamination risk
Solution Approach 1:
A deformable slider is introduced as an intermediary mechanism between the sealed blister package and the contact lens. The slider includes a lens support that contacts the lens and a pull tab for user interaction. When the user pulls the pull tab, the deformable slider moves to lift the lens out of the sterile cavity, allowing lens removal without the user's fingers directly touching the lens surface, thus reducing contamination risk while maintaining sterile protection
2Device complexity
If the contact lens is deep within the cavity, then the sealed package is compact, but the user must dig or pinch the lens to remove it, complicating handling
Solution Approach 1:
The deformable slider is designed to be dynamic and movable within the blister package cavity. It can be pushed in to allow compact sealing of the package and pulled out to lift the contact lens for removal. This dynamic mechanism resolves the contradiction by allowing the lens to remain compactly sealed when not in use while enabling easy access and removal when needed, eliminating the need for users to dig or pinch deep within the cavity
3Device complexity
If the lens is presented in a random orientation, then the packaging is simple, but the user must invert or manipulate the lens for proper eye placement
Solution Approach 1:
The deformable slider is designed with a lens support that is pre-configured to hold the contact lens in the correct orientation for eye placement. As the slider lifts the lens out of the cavity, it maintains the lens in the proper orientation, eliminating the need for users to invert or manipulate the lens. This preliminary positioning action resolves the contradiction by maintaining packaging simplicity while ensuring the lens is ready for direct placement onto the eye
Data Source
AI summary
A blister package for a contact lens is provided. A deformable slider supporting a lens is movable via pull-tab or hinge to lift the contact lens out of a lens well. The deformable slider can include a hinge connected to a flexible peel-away top of the blister package or connected to a pull tab that can be pulled to pull taut the deformable slider. A blister package is also provided that includes a hinged shell having a lateral opening opposite the hinge, and a deformable slider that is folded over onto itself and seals both a top chamber and a bottom chamber. By pulling a tongue of the deformable slider, which extends from the lateral opening, the deformable slider can be removed from the closed shell and the closed shell can be opened enabling access to the contact lens.