Importance

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Abstract

Injection device for medical purposes, designed for injection by using a manual hypodermic syringe. It includes a barrel part which in one end has a syringe needle and in the other end a flange; a plunger part having a plunger displaceable in the barrel part, said plunger performing movements, enabling medicine to be sucked into and respectively injected from the barrel portion, and having a gripping part connected with the plunger by means of a plunger rod. The device has an opening in one end, through which the injection syringe can at least partly be introduced into a cavity, and an inner part which is provided with a holding device for the barrel part which is changeable between a releasing position and a holding position, in which the barrel portion is held against movements in its longitudinal direction relative to the inner part. A displacement device is provided for displacing the plunger part between a fore and a rear displacement position. The inner part is changeable between a rear position with the syringe needle positioned inside the opening and an advanced position with the syringe needle pushed outside the opening for insertion. The injection device includes an outer part, in which an electric motor is positioned and controlled by means of an electronic device. A transmission connects it to the displacement device for accomplishing its displacement movements in a sequence determined by the control device, for loading the injection syringe, as well as injection after insertion.

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First Claim