Patent ID: 6979316

Claim:
A device for automatic rapid injection of a bolus of medication comprising: a flat, rigid housing having front and back walls spaced to define the thickness of the housing, the housing having logitudinally disposed forward and rearward ends: a syringe adapted to contain an injectable medication, the syringe including a syringe body having a longitudinally compressible volume to enable a predetermined volume of injectable medication to be forced out of the syringe and an injection needle arranged to communicate with the interior of the syringe body, the flow path from the syringe body and through the needle being dimensioned to permit rapid delivery of the medication, both of the syringe body and the needle being disposed within the housing in a retracted position, the syringe being movable longitudinally as a unit from the retracted position to an injection position in which the needle extends longitudinally beyond the forward end of the housing to penetrate tissue; and at least a portion of the syringe body being movable rapidly and longitudinally, after the needle has been extended to the injection position, to compress the syringe volume by a predetermined volume and eject a bolus corresponding to that predetermined volume.