Importance

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Abstract

An injection device has a housing (50, 60) and therein a spring for storing energy for an injection operation. The spring (94) impinges, in the proximal direction, upon an ejection member (92) for ejecting injection liquid (16) from a vessel, displaceably arranged in the housing, at whose proximal end an injection needle is attached. Located in the housing is a displacement member (36), displaceable in the longitudinal direction, for displacing the vessel (14) in the proximal direction, in order to effect a movement of the injection needle (18) in the proximal direction and, thus, its insertion. Provided on the ejection member (92) is a detent lug (100), associated with which is a corresponding detent opening (102) in the displacement member (36). A control member (70), effective in travel-dependent fashion, serves to disengage the detent lug (100) from the detent opening (102) when the displacement member (36), during the injection operation, has traveled a predefined distance in the proximal direction.

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First Claim