Guidewire catheter and apparatus for diagnostic imaging

Surgery – Truss – Pad

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Details

128656, 128657, 128665, 128634, 128772, 604280, 604282, A61B 600

Patent

active

053834674

ABSTRACT:
A catheter comprising a unitary guidewire and single mode optical fiber is used to illuminate human body channels, such as a tissue mass within a blood vessel, for purposes of diagnosis. A low coherent light source illuminates the tissue and provides a reference beam. Illumination that is reflected from the tissue is combined with the reference beam in an interferometer process. The path length of the reference beam is changed in a known manner in order to provide a known reference to the distance inside of the tissue from which reflected radiation is being received, thus providing information as to both the nature and the geometry of the tissue. A high signal to noise ratio is provided.

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