Abstract: A method for selectively ablating targeted biological material uses real-time optical feedback control to measure incandescent photoemissions emitted from irradiated biological material and, based on the measured incandescent photoemissions, adjust laser pulse parameters to selectively ablate targeted biological material. Laser pulses are directed to a target area of the subject using a delivery system. During each laser pulse, incandescent photoemissions emitted from the biological material having a wavelength of less than that of the laser pulses are measured. Based on such measured incandescent photoemissions, at least one of the wavelenght, pulse duration and energy level of each laser pulse are adjusted in order to selectively ablate targeted soft or hard biological material.

Abstract: Removal of body tissue with a long pulsed lasers is achieved such that sufficient energy to remove tissue is transmitted to the desired body without damaging an optical fiber transmitting the laser radiation. Pairs of pulses having the same or different wavelengths are coupled to more effectively remove tissue from the surgical site.

Abstract: The present invention relates to systems and methods employed in the use of spectroscopy in the diagnosis of tissue. More particularly, it relates to the use of surface contact and needle probe devices having one or more optical fibers used to direct laser radiation onto tissue to be diagnosed, collecting radiation subsequently emitted by the tissue and delivering that radiation to a system for spectral analysis.

Abstract: A molded fiber-optic plug for retaining optical fibers in a fixed position within a laser catheter is disclosed in which an optically polished tubular moldable plug body is used to secure a plurality of optical fibers within a laser catheter.

Abstract: A molded fiber-optic plug for retaining optical fibers in a fixed position within a laser catheter is disclosed in which an optically polished tubular moldable plug body is used to secure a plurality of optical fibers within a laser catheter.

Abstract: A method of forming an optical shield for a laser catheter is disclosed in which a rod of light transmissive material is optically polished and inserted into a tube of similar material and fused and the distal end of the rod is cut and the assembly is optically polished at the distal end.