Patent ID: 6013050
Filing Date: 2000-01-11
Classification: A61M,C12M

Abstract:
A needleless syringe for administering particles of a therapeutic agent, said syringe comprising:(a) an elongate nozzle having an upstream end;(b) a capsule chamber interfaced with the upstream end of the nozzle to provide a chamber/nozzle interface, said chamber having an open upstream end and an open downstream end and providing a housing for containing a nonrigid capsule;(c) opening means for mechanically piercing a nonrigid capsule when the capsule is arranged in the capsule chamber housing, said opening means arranged at the upstream end of the capsule chamber; and(d) energizing means connected to the upstream end of the capsule chamber, wherein said energizing means comprises a source of pressurized gas and can be actuated to provide a gas flow through the capsule chamber and nozzle.