Patent Number: 6,168,587

Title: Needleless syringe using supersonic gas flow for particle delivery

Abstract: A needleless syringe having a membrane (28) which is ruptured by gas pressure to generate a supersonic gas flow in which particles containing a therapeutic agent are injected.

Inventors: Bellhouse; Brian J. (Islip, GB), Sarphie; David F. (Oxford, GB), Greenford; John C. (Abingdon, GB)

Assignee: PowderJect Research Limited

International Classification: A61M 5/30 (20060101); C12M 3/00 (20060101); A61M 5/20 (20060101); A61M 031/00 ()

Expiration Date: 01/02/2018