Needleless injection device comprising means for regulating...

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...

Reexamination Certificate

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Details

C604S068000, C604S072000

Reexamination Certificate

active

07455655

ABSTRACT:
The invention relates to a needleless injection device (1) comprising a body (2) which supports and/or defines a plurality of elements that form a circuit of elements. The aforementioned circuit comprises, from upstream towards downstream, an initiation device which is associated with a pyrotechnic gas generator, a receptacle (5) housing a liquid active agent that is to be injected, and an active agent injection system. According to the invention, the pyrotechnic gas generator comprises a pyrotechnic charge (62) which is placed in a combustion chamber (4). The inventive device is characterised in that it comprises at least one device for regulating the gas pressure level in the combustion chamber (4).

REFERENCES:
patent: 3308818 (1967-03-01), Rutkowski
patent: 3802430 (1974-04-01), Schwebel et al.
patent: 6258063 (2001-07-01), Haar et al.
patent: 6328714 (2001-12-01), Bellhouse et al.
patent: 7160265 (2007-01-01), Lell
patent: 2 815 544 (2002-04-01), None
patent: WO 00/44421 (2000-08-01), None
patent: WO 01/97880 (2001-12-01), None

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