Unitary, hermetically-sealed but pierceable dispensing container
US4178976A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1978 |
| Grant date | Dec 18, 1979 |
| Priority date | — |
| Expiry date | Oct 16, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C49/761
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A unitary, hermetically-sealed but pierceable dispensing container, suitable for packaging parenteral solutions, is made from a flexible, generally tubular body of thermoplastic material utilizing a form, fill and seal technique and a movable, composite mandrel that includes a forming ram member for compression molding from within the container a container wall portion which includes a pierceable membrane. The tubular body is closed at one end and terminates at the other end in a draining region having an access aperture or port sealed by a unitary membrane of predetermined thickness. The membrane permits penetration of a cannula therethrough without coring, and an annular sealing means surrounding the aperture is adapted for frictional and sealing engagement of the cannula after the membrane has been penetrated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.