Disposable injector with at least one compression bar and a...

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/30 (2006.01) A61M 5/20 (2006.01) A61M 5/32 (2006.01)

Patent

CA 2692567

The invention relates to a disposable injector with a housing (10) in which are arranged at least one mechanical spring energy reservoir (50), at least one cylinder/piston unit (100), at least one piston-actuating ram (60), and at least one trigger unit. The housing comprises at least one compression hook (21) which, in the area of its free end, has at least one bearing surface. The piston- actuating ram lies on the bearing surface. The locking state of the compression hook is secured by a trigger element positioned in a locking position. The trigger element has a locking position in which it bears on a closure cap (120). The trigger element has a release position which brings about a lateral retreat of the compression hook.

L'invention concerne un instrument d'injection à usage unique comprenant un boîtier (10), dans lequel sont disposés au moins un accumulateur d'énergie à ressort mécanique (50), au moins une unité cylindre-piston (100), au moins un poinçon d'actionnement du piston (60) et au moins une unité de déclenchement. Le boîtier présente au moins un crochet de pression (21) qui présente au moins une surface de support au niveau de son extrémité libre. Contre la surface de support s'applique le poinçon d'actionnement du piston. La position de blocage du crochet de pression est fixée par un élément de déclenchement positionné dans une position de blocage. L'élément de déclenchement a une position de blocage dans laquelle il s'applique contre un capuchon de fermeture (120). L'élément de déclenchement a une position de libération qui provoque un retour en arrière latéral du crochet de pression.

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