Flow reduction hood systems
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United States of America Patent
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Dec 27, 2016
Grant Date -
May 23, 2013
app pub date -
Jan 16, 2013
filing date -
Feb 2, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
Flow reduction hood systems are described which facilitate the visualization of tissue regions through a clear fluid. Such a system may include an imaging hood having one or more layers covering the distal opening and defines one or more apertures which control the infusion and controlled retention of the clearing fluid into the hood. In this manner, the amount of clearing fluid may be limited and the clarity of the imaging of the underlying tissue through the fluid within the hood may be maintained for relatively longer periods of time by inhibiting, delaying, or preventing the infusion of surrounding blood into the viewing field. The aperture size may be controlled to decrease or increase through selective inflation of the membrane or other mechanisms.
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