Abstract: A pressure jet injector for administering an injectable product, including a casing, a pressure chamber connected to the casing, and a feeder for administering the product from the pressure chamber. To administer the product, a jet outlet, which may be formed as the pressure chamber outlet, is pressed against tissue using a pressing force. The pressing force acts on a trigger for the injector. The trigger is connected to the casing such that the pressing force is transferred to a resistance element. The resistance element is supported on the casing and the pressing force acting on the trigger is further transferred from the trigger onto the casing via the resistance element. The feeder is triggered as the pressing force reaches or exceeds a pre-set and/or measured magnitude.