NGAS powered self-resetting needle-less hypodermic jet injection apparatus and method
US6096002A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1998 |
| Grant date | Aug 1, 2000 |
| Priority date | — |
| Expiry date | Nov 18, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2005/3106
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A needle-less hypodermic jet injection device includes a hand-held injector, and a drug injection cartridge which provides a cylinder of liquid medication to be injected, an injection orifice, and an injection piston forceful movement of which in the cylinder causes an injection jet of medication to be expelled from the orifice. The injection device also includes a gas pressure capsule which powers the jet injection and which also automatically resets the injection device during an injection in order to prepare it for a subsequent injection. A multi-function component of the device is effective to place it in a safe condition allowing the device to be prepared for a next injection, and to place the device in a ready condition for allowing a jet injection to be conducted by use of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.