Medicinal spray device with two substance compartments separated by puncturable membrane
US5127548A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 1991 |
| Grant date | Jul 7, 1992 |
| Priority date | — |
| Expiry date | Feb 21, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M11/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device for administering a medicine in the form of a spray, the medicine being constituted by a mixture of at least two substances that must be stored separately prior to use, the device comprising a volume which is divided into two compartments by a membrane 2 suitable for puncturing or tearing. The volume is defined by a receptacle 1A, 1B which is generally tubular in shape, and which is open at both ends. A suction and spray pump 4 is crimped onto one end thereof while its opposite end has a free piston 6 slidably received in the tubular element 1B to reduce the inside volume thereof as the pump sucks the content out from the tubular element after the membrane has been punctured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.