Patent ID: 8535298

Claim:
A device for treating CVD comprising: an energy source, the energy source generating an electromagnetic radiation beam; a beam pulsing device, the beam pulsing device pulsing the generated electromagnetic radiation beam at a pulse repetition rate of about 0.1 pulses per second or greater sufficient to allow interaction energy transients caused by the pulsed electromagnetic radiation beam to decay sufficiently such that a material can be modified, wherein the material modification includes at least one of chemically changing the material, physically changing the material, changing viscoelastic properties of the material, changing optical properties of the material, changing thermal properties of the material, chemically breaking down the material, physically breaking down the material, disintegrating the material, ablating the material, melting the material, and vaporizing the material; a controller, the controller adjusting characteristics of the electromagnetic radiation beam or a target region such that the generated electromagnetic radiation beam is capable of modifying a desired quantity of a target material, the characteristics including at least one of a diameter of the electromagnetic radiation beam at the target region, a pulse duration, an energy of the electromagnetic radiation beam, a wavelength of the electromagnetic radiation beam, a spatial and/or temporal absorption of the target region, or a spatial and/or temporal scattering of the target region; a pulse compressor, the pulse compressor spatially and/or temporally compressing the pulses of the pulsed electromagnetic radiation beam as it propagates towards the target material; a conduit to deliver said pulsed electromagnetic radiation beam to the target material, wherein said pulsed electromagnetic radiation beam is coupled to the conduit and wherein said conduit is further capable of inducing a compression of the pulse duration so that said pulse duration is shortest at the targeted volume; an output member and a focusing member, wherein the focusing member can be moved along the axis of the catheter and/or be stirred or made to spin into 360 degrees.