NEEDLELESS INJECTION DEVICE COMPRISING MEANS FOR REGULATING THE GAS PRESSURE LEVEL IN THE COMBUSTION CHAMBER

NEEDLELESS INJECTION DEVICE COMPRISING MEANS FOR REGULATING THE GAS PRESSURE LEVEL IN THE COMBUSTION CHAMBER

A needless injector (1) comprises a housing (2) containing a series of components in a circuit comprising a pyrotechnic gas generator with an initiator, a reservoir for the liquid to be injected, and an injection system. A needless injector (1) comprises a housing (2) containing a series of componen...

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Bibliographische Detailangaben
Hauptverfasser: ALEXANDRE, Patrick, BROUQUIERES, Bernard, DESAILLY, David
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY
DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
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Beschreibung
Zusammenfassung:A needless injector (1) comprises a housing (2) containing a series of components in a circuit comprising a pyrotechnic gas generator with an initiator, a reservoir for the liquid to be injected, and an injection system. A needless injector (1) comprises a housing (2) containing a series of components in a circuit comprising a pyrotechnic gas generator with an initiator, a reservoir for the liquid to be injected, and an injection system. The gas generator consists of a pyrotechnic charge (62) inside a combustion chamber (4) which is separated into two compartments (V1, V2) by a partition (40) with a passage (41) that acts as a gas pressure regulator. The charge is located in a first sub-section (V10) of the first compartment (V1) which is initially closed by a second regulator in the form of a seal that bursts at a given pressure.