Method and device for entrapping gas within a liquid drug container
US6520941B1 · kind B1 · utility
Inventors
Key dates
| Filing date | Oct 12, 1999 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Oct 12, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3123
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A stopper for use in preventing any volume of gas from escaping from a drug container when used in connection therewith. The stopper has a body having a perimeter for slidable engagement with the interior of a drug receptacle; an outer surface; and an inner surface facing the bottom of the drug receptacle, the inner surface shaped so as to trap any volume of gas located within the drug receptacle when the body is slidably engaged therein. The invention is further directed to a drug container having a hollow body for holding a liquid. The body has an open end and a closed end. The container also has a stopper slidably received in the hollow body, and a feature for entrapping any volume of gas within the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.