Needleless syringe with two injection speed levels
US6942645B2 · kind B2 · utility
17Cited by
10References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2001 |
| Grant date | Sep 13, 2005 |
| Priority date | — |
| Expiry date | Jul 19, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M5/484
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needleless syringe for injecting a liquid active principle. The syringe improves bioavailability by providing injection at two speed levels. The syringe includes a reservoir contained between an injector and push means subjected to the action of a gas generator. The push means including an end, directed towards the active principle, which forms a delivery head whereof the cross-section is smaller than the powering head cross-section, and the powering travel in the power cylinder is less than the height of the active principle reservoir.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.