NGAS powered self-resetting needle-less hypodermic jet injection

Details NGAS powered self-resetting needle-less hypodermic jet injection NGAS powered self-resetting needle-less hypodermic jet injection

1998-11-18

2000-08-01

Dawson, Glenn K.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604 69, 604143, A61M 530, A61M 3700

Patent

active

060960027

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.

REFERENCES:
patent: 3688765 (1972-09-01), Gasaway
patent: 5503627 (1996-04-01), McKinnon et al.
patent: 5865795 (1999-02-01), Schiff et al.

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