Drug infusion device for neural axial and peripheral nerve tissue identification using exit pressure sensing
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United States of America Patent
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Issued Date -
Jun 8, 2006
app pub date -
Aug 19, 2005
filing date -
Apr 10, 1998
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An automatic injection device includes a drive mechanism and a sensor used to determine an internal characteristic such as a force or internal pressure generated during an injection process. This characteristic is then used as a control parameter by a microprocessor or controller to determine the exit pressure of the fluid expelled by the device. This exit pressure is then used to identify the kind of tissue in which the injection is being introduced.
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