Flexible plastic sterile closure system for containers
US4550842A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1982 |
| Grant date | Nov 5, 1985 |
| Priority date | — |
| Expiry date | Dec 27, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S206/807
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A flexible plastic sealing cover has a container cover area and pull-tab area. In one embodiment, an upper layer of plastic film is substantially impervious to moisture and bacteria. An orientated plastic film layer is bonded to the upper layer with a layer of adhesive, such that the orientated plastic layer promotes tearing when the cover is removed with the pull-tab. An adhesive material is bonded to the layer of orientated plastic film for engaging and sealing the container top of a IV solution container. In removing the sealing cover from a container, telltale strips of the cover are left in engagement with the container to indicate the sterilized seal has been removed. In another embodiment, a single layer of plastic film substantially impervious to moisture and bacteria is bonded with a layer of adhesive material. Slits may be formed in the plastic layer to promote its separation to leave telltale sealing strips on the container upon removal of the cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.