Patent ID: 6228067
Filing Date: 2001-05-08
Classification: A61M

Abstract:
An injection device for injection of an adjustable dose of an injectable fluid, comprisinga distal housing part and a proximal housing part which are rotatably mounted with respect to each other but are not axially movable with respect to each other,wherein the proximal housing part has a proximal portion which projects out of the distal housing part and has a distal portion which extends into the distal housing part and is formed with an external thread,a dosing element is provided, which is axially movable within the distal housing part but not rotatable with respect thereto, the position of said dosing element relative to the distal housing part affecting the injection dose, said dosing element having an internal thread which engages said external thread of said distal portion of said proximal housing part,so that rotation of said proximal housing part relative to said distal housing part causes axial movement of said dosing element in the distal housing part and thereby permits adjustment and setting of the injection dose.