Constricted neck blister pack and apparatus and method for making the same
US6588180B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2001 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Feb 2, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D75/36
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A blister pack which confines the movement a dosage form in order to resist damage thereto during handling and transportation while permitting removal of the intact dosage form, and apparatus and methods for the same. In particular, the invention provides a blister pack wherein the blister includes a protruding region between the opening and the base, thereby producing a constricted area or “neck” in the blister. In a preferred embodiment, the protruding region comprises an inwardly directed annulus formed in the blister wall. Accordingly, vertical movement of the dosage form is confined as a result of the protruding region, thereby reducing the likelihood of damage to the dosage form caused by agitation of the blister pack. The invention is particularly useful in packaging frangible pharmaceutical dosage forms formed in situ within the blister, such as freeze dried dosage forms and rapidly dissolving oral dosage forms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.