Patent ID: 8260390

Claim:
A system that probes and treats an occluded body lumen comprising: a flexible conduit that is suitable for insertion into a body lumen, the conduit elongated along a longitudinal axis and having a proximal end and a distal end; at least one delivery waveguide and at least one collection waveguide integrated with the flexible conduit and constructed and arranged to deliver and collect radiation about the distal end of said flexible conduit; at least one radiation source connected to a transmission input of the at least one delivery waveguide, the radiation source constructed and arranged to provide radiation at a wavelength in a range of about 250 to 2500 nanometers; at least one optical detector connected to a transmission output of the at least one collection waveguide; a spectrometer connected to said at least one optical detector, said spectrometer constructed and arranged to scan radiation and perform spectroscopy at the wavelength of the radiation provided by the radiation source, said spectrometer configured to perform spectroscopy of at least one of the methods comprising fluorescence, light scatter, speckle correlometry, Raman, and diffuse reflectance spectroscopy; and a controller programmed to process data from said spectrometer and provide information for directing said flexible conduit through obstacles within the occluded body lumen.