Apparatus and method for controlling high flow insufflation
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United States of America Patent
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Jun 11, 2002
Grant Date -
N/A
app pub date -
Nov 12, 1999
filing date -
Nov 12, 1999
priority date (Note) -
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status (Latency Note)
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Abstract
A pulsed insulation system for administering an insufflation procedure includes a controller programmed to have a multi-mode operation. The controller switches the insufflation system to adjust an insufflation pressure to a nominal value in a first mode of operation of the controller. Upon encountering an obstruction by a Veress needle, the controller switches the insufflation system in a second mode, so as to adjust the insufflation pressure to a maximum target value and to have an interruption phase of pulse controllably increased. The interruption phase of pulse in the second mode is extended so as to enable a pressurized fluid accumulated at an upstream end of the Veress needle to dissipate therethrough before a measurement of the intracavity pressure is made.
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