Injection apparatus

A - Human Necessities – 61 – M

Patent

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Details

A61M 5/24 (2006.01) A61M 5/31 (2006.01) A61M 5/315 (2006.01)

Patent

CA 2186869

In an injection apparatus, a guide screw shaft of a body section (20) and a screw of an operation knob (34) of a movable section (30) allow the movable section (30) to move relative to the body section (20). An ampule (7) is radially inserted into a ampule holding portion (36) of the movable section (30) and temporarily held by means of an elastic blade (36a) and at the same time, a flange (75) of the ampule (70) is inserted into a flange insertion portion (38). When the operation knob (34) is rotated, the movable section (30) moves toward the body section (20) together with the ampule (70). A guide sleeve formed in the body section (20) is inserted into a syringe (77) of the ampule (70). An operation knob (50) is rotated to set the feeding amount of a piston rod, and the operation knob (50) is pressed to perform an injection. When a release button (40) is pressed, the piston rod is returned to an initial position. This construction allows the ampule (70) to be easily mounted on the injection apparatus and the state of medicine in the ampule (70) to be easily seen.

Appareil pour injections utilisant un arbre fileté de guidage (26) situé dans un corps principal (20) et un bouton (34) d'actionnement à vis situé dans un corps mobile (30), afin de déplacer ce corps mobile (30) par rapport au corps principal (20). Une ampoule (70) est introduite radialement dans un support d'ampoule (36) du corps mobile (30). L'ampoule (70) est d'abord maintenue temporairement par une ailette élastique (36a) et un rebord (75) de l'ampoule est ensuite introduit dans une partie (38) le recevant. Lorsqu'on tourne le bouton d'actionnement (34), le corps mobile (30) se déplace avec l'ampoule (70) en direction du corps principal (20). Un manchon de guidage dans le corps principal (20) est introduit dans une seringue (77) de l'ampoule (70). On tourne un bouton d'injection (50) pour déterminer la course d'une tige de piston et on le pousse ensuite pour injecter. On presse ensuite un bouton de libération (40) pour faire revenir la tige de piston vers la position initiale. Cet appareil facilite l'introduction d'une ampoule et l'observation de la solution qu'elle contient.

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