PRESSURE CONTROL FOR CATHETER DRAIN TUBING
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United States of America Patent
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Issued Date -
Apr 15, 2010
app pub date -
Mar 14, 2008
filing date -
Mar 16, 2007
priority date (Note) -
Abandoned
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Abstract
Described is, e.g., an apparatus (100), and associated methods of manufacture and use, for draining a fluid, discharged from a urinary catheter (104) installed in a subject's bladder, into a drain container (138) while avoiding undesired pressure states in such bladder. A drain conduit (102) connected to the catheter has a sufficiently small size as to maintain plug-flow between opposite ends of the drain conduit. The discharge end of the drain conduit is connected to a siphon-break apparatus (106) configured to cause a siphon-break disposed at an elevation (132) in approximate agreement with the subject's bladder. The potential energy from fluid downstream of the siphon-break location is decoupled from fluid in the drain conduit.
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