Device and method for measuring the diameter of an air passageway
First Claim
1. A device for measuring an inside diameter of an air passageway, the device comprising:
- a flexible 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 of the air passageway 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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Accused Products
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.
244 Citations
37 Claims
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1. A device for measuring an inside diameter of an air passageway, the device comprising:
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a flexible 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 of the air passageway in response to fluid ejected from the fluid dispenser, and having a known relationship between volume and the expandable transverse dimension. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. An assembly for use in measuring the inside diameter of an air passageway, the assembly comprising:
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a flexible catheter having an inflation lumen, the inflation lumen being arranged for fluid coupling with a fluid dispenser 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 of the air passageway in response to fluid ejected from the fluid dispenser, and having a known relationship between volume and the expandable transverse dimension. - View Dependent Claims (14, 15, 16)
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17. A device for measuring an inside diameter of an air passageway, the device comprising:
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a flexible catheter having an inflation lumen;
a fluid dispenser in fluid communication with the inflation lumen and operable to eject a measurable volume of fluid;
a balloon member in fluid communication with the inflation lumen and expandable to a transverse dimension adjacent to opposing portions of an interior wall of the air passageway in response to fluid ejected from the fluid dispenser, and having a known relationship between volume and the expandable transverse dimension; and
a port in fluid communication with the inflation lumen allowing sensing of pressure in the inflation lumen. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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26. A device for measuring an inside diameter of an air passageway, the device comprising:
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a flexible catheter having an inflation lumen;
a fluid dispenser in fluid communication with the inflation lumen and operable to eject a measurable volume of fluid;
a balloon member in fluid communication with the inflation lumen and expandable to a transverse dimension adjacent to opposing portions of an interior wall of the air passageway in response to fluid ejected from the fluid dispenser, and having a known relationship between volume and the expandable transverse dimension; and
a pressure indicator coupled to the inflation lumen for indicating pressure in the inflation lumen. - View Dependent Claims (27)
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28. A device for measuring the inside diameter of a body lumen, the device comprising:
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a flexible catheter having an inflation conduit;
a fluid dispenser in fluid communication with the inflation conduit 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 of the air passageway 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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29. A method of measuring an air passageway inside diameter, the method including the steps of:
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placing a balloon in the air passageway, the balloon being expandable to a transverse dimension adjacent to opposing portions of an interior wall of the air passageway and having a known relationship between volume and the expandable transverse dimension;
expanding the balloon until the expandable transverse dimension is adjacent to opposing portions of an inner periphery of the air passageway; and
determining the air passageway diameter in response to the volume of the expanded balloon. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36)
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37. A device for measuring an inside diameter of an air passageway, the device comprising:
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means for placing a balloon member in the air passageway, the balloon member expandable in a transverse dimension adjacent to opposing portions of an interior wall of the air passageway and having a known relationship between volume and expandable transverse dimension;
means for expanding the balloon until the expandable transverse dimension is adjacent to opposing portions of an inner periphery of the air passageway; and
means for determining the air passageway diameter in response to the volume of the expanded balloon.
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Specification