Catheter with optical fiber sensor

A catheter comprising:

• a catheter shaft having an elongated outer member disposed about a tubular inner member and an intraluminal gap extending longitudinally between the outer member and the inner member;
• and
• at least one optical fiber disposed within a coil-like enclosure which concentrically surrounds the at least one optical fiber and disposed within the intraluminal gap, the at least one optical fiber being bonded to at least one point along an inner surface of the coil-like enclosure, the catheter capable of both diagnostic and therapeutic purposes.

A system for sensing vessel and blood characteristics, the system comprising:

• a data processing system;
• and
• an apparatus coupled to the data processing system, the apparatus comprising an intravascular device to perform a therapeutic treatment and at least one optical fiber disposed within a coil-like enclosure which concentrically surrounds the at least one optical fiber and disposed within the intravascular device, and the at least one optical fiber is bonded to at least one point along an inner surface of the coil-like enclosure, the at least one optical fiber configured to provide diagnostic information at least one of before, during, and after the therapeutic treatment.

A catheter, comprising:

• a catheter inner shaft member having a first lumen, an optical fiber within the first lumen, the optical fiber disposed within a coil-like enclosure which concentrically surrounds the optical fiber and the optical fiber is bonded to at least one point along an interior surface of the coil-like enclosure, a second lumen adapted to receive a guidewire, and a third lumen adapted to received a therapeutic drug, wherein the optical fiber is configured to provide diagnostic information at least one of before, during, and after a therapeutic treatment.