Device and method for measuring the diameter of an air passageway
First Claim
1. A device for measuring an inside diameter of a body lumen, the device comprising:
- a flexible catheter; and
a member carried on a distal tip of the catheter, the member having a known transverse dimension and arranged for placement adjacent to opposing portions of an interior wall of the body lumen.
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Accused Products
Abstract
The invention provides a device for measuring an inside diameter of a body lumen, such as an air passageway. The device includes a flexible catheter having an inflation lumen, a fluid dispenser in fluid communication with the inflation lumen and operable to communicate a measurable fluid volume change with the inflation lumen, and an expandable member in fluid communication with the inflation lumen and having a known relationship between volume and a changeable transverse dimension, the transverse dimension being changeable in response to fluid volume changes of the fluid dispenser and arranged for placement adjacent to opposing portions of an interior wall of the air passageway. The expandable member may be dimensioned for transoral placement into the air passageway, and may comprise a balloon that includes a complaint material.
242 Citations
45 Claims
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1. A device for measuring an inside diameter of a body lumen, the device comprising:
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a flexible catheter; and
a member carried on a distal tip of the catheter, the member having a known transverse dimension and arranged for placement adjacent to opposing portions of an interior wall of the body lumen.
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2. 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 communicate a measurable fluid volume change with the inflation lumen; and
an expandable member in fluid communication with the inflation lumen and having a known relationship between fluid volume and a changeable transverse dimension, the transverse dimension being changeable in response to fluid volume changes of the fluid dispenser and arranged for placement adjacent to opposing portions of an interior wall of the air passageway. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. 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 and a purge lumen;
a fluid dispenser in fluid communication with the inflation lumen and operable to communicate a measurable fluid volume change with the inflation lumen; and
an expandable member in fluid communication with the inflation lumen and having a known relationship between fluid volume and a changeable transverse dimension, the transverse dimension being changeable in response to fluid volume changes of the fluid dispenser and arranged for placement adjacent to opposing portions of an interior wall of the air passageway. - View Dependent Claims (22)
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23. 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 communicate a measurable fluid volume change with the inflation lumen; and
an expandable member in fluid communication with the inflation lumen and having a known relationship between fluid volume and a changeable transverse dimension, the transverse dimension of the expandable member being changeable in response to fluid volume changes of the fluid dispenser and arranged for placement adjacent to opposing portions of an interior wall of the air passageway. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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31. A method of measuring an inside diameter of a body lumen, the method including the steps of:
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placing a member having a known transverse dimension in the body lumen; and
determining that the known transverse dimension is adjacent to opposing portions of an inner periphery of the body lumen.
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32. A method of measuring an inside diameter of an air passageway, the method including the steps of:
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placing an expandable member in the air passageway, the expandable member changeable in a transverse dimension and having a known relationship between fluid volume and changeable transverse dimension;
changing the changeable transverse dimension of the expandable member to a known transverse dimension by changing the fluid volume of the expandable member; and
determining that the known expanded transverse dimension is adjacent to opposing portions of an inner periphery of the air passageway. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A device for measuring an inside diameter of an air passageway, the device comprising:
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means for placing a member having a known transverse dimension in the air passageway; and
means for determining that the known transverse dimension is adjacent to opposing portions of an inner periphery of the air passageway.
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45. A device for measuring an inside diameter of an air passageway, the device comprising:
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means for placing an expandable member in the air passageway, the expandable member changeable in a transverse dimension and having a known relationship between volume and changeable transverse dimension;
means for changing the changeable transverse dimension to a known transverse dimension by changing the volume of the expandable member; and
means for determining that the known transverse dimension is adjacent to opposing portions of an inner periphery of the air passageway.
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Specification