Patent ID: 7699802
Filing Date: 2010-04-20
Classification: A61M

Abstract:
1. A needle-less injector device comprising: an inner housing having a leading and a trailing end, the leading end adapted for receiving a vial that includes a nozzle for delivering a fluid held within the vial, the inner housing having a spring powered ram movable from a cocked position to an unloaded position; an outer housing supporting the inner housing, the inner housing moving within the outer housing between a safe position and a firing position; a tensioning spring between the inner housing and the outer housing, the tensioning spring biasing the inner housing away from the firing position towards the safe position, wherein the tensioning spring exerts force on the vial to pull adjacent skin taut and position the taut skin at a right angle relative to the device when the inner housing is in the firing position; and a trigger in the outer housing, the trigger operating through the outer housing to fire the device when the inner housing is in the firing position, the trigger cooperating with the spring powered ram to release the spring powered ram from the cocked position when the inner housing is in the firing position.