Patent ID: 8135454

Claim:
A system for diagnosing and treating tissue, comprising: an endoscope; an elongated catheter shaft defining at least two lumens and including a distal end that is insertable into a lumen of the endoscope; a first optical fiber, removably insertable into one of the at least two lumens of the catheter shaft and extendable beyond the distal end of the catheter shaft, for transmitting light to tissue located at a distal end of the catheter shaft; a second optical fiber, removably insertable into one of the at least two lumens of the catheter shaft and extendable beyond the distal end of the catheter shaft, for conveying light back from the tissue for analysis by a spectroscopic diagnosis system to determine whether an interventional procedure should be performed on the tissue, wherein said second optical fiber and said first optical fiber are discrete fibers and at least one of the fibers includes a viewing device for converting a second conveyed light back from the tissue into a visual observation image of the tissue; a rotatable ultrasonic transducer for determining a depth at which an interventional procedure is to be performed; and an interventional device located at the distal end of the catheter shaft for engaging tissue diagnosed by the spectroscopic diagnosis system in order to perform the interventional procedure on the tissue, wherein said interventional device is physically separable from said first and second optical fibers.