B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
B65D 75/36 (2006.01) A61F 2/16 (2006.01) B65D 1/30 (2006.01) B65D 77/20 (2006.01) B65D 85/38 (2006.01)
Patent
CA 2148434
The blister pack comprises a base portion (B) and a cover layer (D). The base portion (B) comprises a hollow chamber (C) that contains a soft hydrophilic contact lens (L) and a sterile aqueous preserving solution (S), and a substantially flat flange (1) that extends right round the outside of the hollow chamber (C). The cover layer (D) is releasably sealed to the flange (1) in a sealing zone (2) that extends right round the circumference of the hollow chamber (C). The flange (1) comprises a grip region (3) that extends from one side of the hollow chamber (C) beyond the sealing zone (2) and is covered by a corresponding grip region (4) of the cover layer (D) but is not sealed thereto. The hollow chamber (C) comprises a dish-shaped main chamber and, adjoining the side of that main chamber, a secondary chamber in the shape of a channel tapering on all sides away from the main chamber, the main chamber making a smooth transition into the secondary chamber, and the main chamber and the secondary chamber together having a drop-shaped contour (14) in the plane of the flange (1), the tip of which contour is directed towards the grip region (3) of the flange (1). Provided in the grip region (3) of the flange (1) is an oval opening (15) by means of which the overlying grip region (4) of the cover layer (D) can be lifted from the flange. A support element (16) that is angled with respect to the plane of the flange (1) is arranged in the grip region (3) of the flange (1). An angled grip element (18, 19) for facilitating the handling of the blister pack is arranged at the edge of the flange (1) on both sides of the hollow chamber (C). The base portion (B) is so shaped that the blister packs can be nested in pairs with their undersides one inside the other, in each case the hollow chamber (C) of one blister pack lying in the region of the grip region (3) of the other blister pack. The blister pack is extremely handy, space-saving and stable, requires only an extremely small amount of preserving solution and enables the contact lens it contains to be removed especially easily.
Baumann Erich
Borghorst Sharla
Cubo Masahiko
de Lucchi Michele
Fritze Torsten
Fetherstonhaugh & Co.
Novartis Ag
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