Patent ID: 9333300
Filing Date: 2016-05-10
CPC Classification: A61M

Claim Text:
1. A method of providing a needle-less injection comprising: providing a removable needle-less syringe containing a dose of medicament, the syringe including a nozzle for delivering the medicament; providing a needle-less injector comprising an inner housing adapted for receiving the syringe, a coiled delivery spring and hammer positioned within the inner housing, an outer housing supporting the inner housing such that the inner housing is axially movable within the outer housing between a safe position and a firing position, a tensioning spring between the inner housing and the outer housing and a trigger in operative association with the hammer; engaging the needle-less syringe with the inner housing; pressing the nozzle against skin by pushing the outer housing towards the skin causing the outer housing to move toward the nozzle against the force exerted by the tensioning spring until the inner housing is in the firing position, and pressing the trigger to release the hammer when the inner housing is in the firing position, to cause the hammer to force a plunger into the syringe to eject the medicament from the syringe through the nozzle into the skin.