Needleless hypodermic jet injector apparatus and method
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United States of America Patent
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Mar 25, 2008
Grant Date -
N/A
app pub date -
Mar 9, 2004
filing date -
Mar 9, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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 the jet pierces stratum corneum, the impedance in the circuit immediately decreases, thus an indicating the successful drug delivery. The impedance monitor then provides a signal, visible, audible, or electronic, indicating that the process of the drug delivery through skin was successful.
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