Needle-less injection system
US6506177B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Oct 14, 1998 |
| Grant date | Jan 14, 2003 |
| Priority date | — |
| Expiry date | Oct 14, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2209/086
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle-less hypodermic jet injection system includes a hand-held injector, and an energizing or cocking unit for use with the injector to prepare it for administering an injection. The hand-held unit includes a cartridge which provides a cylinder of liquid medication to be injected, an injection orifice, and an injection piston forceful movement of which causes an injection jet of medication to be expelled from the orifice. A power unit of the injector provides for forceful movement of the injection piston when a trigger is actuated. After being used to effect an injection, the injector is interfaced with an energizer unit which cocks the power unit preparatory to the next injection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.