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Abstract

A method and apparatus for measuring luminal dimensions through visualization of a lumen during fiberoscopy. The method comprises the steps of positioning a fiberscope having a distal end within the lumen; providing a means of support for a means for delivering electromagnetic energy, the support means extending along the lumen beyond the distal end of the fiberscope; emitting a transverse ring of electromagnetic radiation from the support means at a known distance from the distal end of the fiberscope, the ring of electromagnetic radiation becoming incident upon a discrete cross section of a luminal surface of the lumen; and visualizing a ring of electromagnetic radiation reflected from the luminal surface. The apparatus of the present invention comprises an apparatus for measuring luminal dimensions through visualization of a lumen during fiberoscopy. The apparatus comprises a fiber scope having a distal end within the lumen, a means for delivering electromagnetic energy positioned in cooperation with the means of support, the support means extending along the lumen beyond the distal end of the fiber scope, a transverse ring of electromagnetic radiation emitted from the support means at a known distance from the distal end of the fiber scope, the ring of electromagnetic radiation becoming incident upon a discrete section of a luminal surface of the lumen, and a ring of electromagnetic radiation reflected from a luminal surface.

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First Claim