Device and method for measuring the diameter of an air passageway
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United States of America Patent
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N/A
Issued Date -
Jan 15, 2004
app pub date -
Jul 15, 2002
filing date -
Jul 15, 2002
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A device and method measuring inside diameter of a body lumen. A method includes placing a balloon inside a lumen, the balloon expandable to a transverse dimension in response to fluid ejected from the fluid dispenser, and having a known relationship between volume and the expandable transverse dimension, expanding the balloon until the expandable transverse dimension is adjacent to an interior wall, and determining the lumen diameter in response to the volume of the expanded balloon. A device includes a catheter having an inflation lumen, a fluid dispenser in fluid communication with the inflation lumen and operable to eject a measurable volume of fluid, and a balloon member in fluid communication with the inflation lumen and expandable to a transverse dimension adjacent to opposing portions of an interior wall in response to fluid ejected from the fluid dispenser, and having a known relationship between volume and the expandable transverse dimension.
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