In the present invention, the impedance between patient's body and the jet injection drug delivery device is measured through the liquid jet during the drug delivery process. The liquid jet completes the electrical circuit formed by impedance monitor, drug delivery device, and the patient's body. When...http://www.google.fr/patents/US7347851?utm_source=gb-gplus-shareBrevet US7347851 - Needleless hypodermic jet injector apparatus and method
Needleless hypodermic jet injector apparatus and method
