A catheter system for pressure wave and inertial impulse generation for intravascular lesion disruption includes a balloon coupled to an elongate shaft, and a first and second light guide disposed along the elongate shaft. The first and second light guides each include a diverting feature in optical communication with at least one light window to direct light to exit each light guide toward a side surface portion thereof and toward the balloon. A method includes expanding the balloon from a collapsed configuration to a first expanded configuration, and activating a light source in optical communication with each light guide to provide sub-millisecond pulses of light to the diverting features, thereby inducing plasma formation in a balloon fluid, causing rapid bubble formation, and imparting pressure waves upon the treatment site.

A laser therapy apparatus having a diode-based continuous emission laser source, a diode-based pulsed emission laser source, and a terminal handpiece. The laser therapy apparatus further includes a bundle of optic fibers for coupling between individual diodes of the diode-based pulsed emission laser source, which is interfaced with a single optic fiber which terminates in the handpiece.

An example multi-fiber, multi-spot laser probe comprises a plurality of fibers extending from a proximal end of the laser probe to at least near a distal end of the laser probe, where the proximal end of the laser probe is configured to be coupled to a laser source via an adapter interface, and a cannula having a distal end and surrounding the plurality of fibers along at least a portion of the laser probe at or near the distal end of the laser probe, where a distal end of each of the plurality of fibers is angle-polished so that the distal end of each fiber is angled relative to a longitudinal axis of the cannula and relative to a plane perpendicular to the longitudinal axis of the cannula. Additional embodiments employ lensed fibers, a distal window, ball lens, lens array, or faceted wedge.

A photoacoustic catheter adapted for placement within a blood vessel having a vessel wall includes an elongate shaft, a balloon and a photoacoustic transducer. The elongate shaft can extend from a proximal region to a distal region. The elongate shaft can include a light guide that is configured to be placed in optical communication with a light source. The balloon is coupled to the elongate shaft, and can be configured to expand from a collapsed configuration suitable for advancing the photoacoustic catheter through a patient's vasculature to a first expanded configuration suitable for anchoring the photoacoustic catheter in position relative to a treatment site. The photoacoustic transducer can be disposed on a surface of the balloon and in optical communication with the light guide. The photoacoustic transducer can include a light-absorbing material and a thermal expansion material.

The invention comprises a system and method for identification and/or characterization of lesions and/or the various type of tissues inside blood vessels, including utilizing a laser system configured to transmit laser radiation towards and/or onto a lesion within a blood vessel, monitoring ablation of the lesion utilizing at least one acoustic sensor; and, using a processor, comparing the signals obtained from the acoustic signal to previously obtained acoustic signals associated with specific lesion types and determine a type of the lesion and/or an efficiency of the ablation process based on the comparison.

Multi-fiber laser probes utilize relative motion of fibers and other laser probe elements to preserve small-gauge compatibility while providing for multi-spot beam deliver, or to provide for the selectively delivery of single-spot or multi-spot beam patterns. An example probe includes fibers having distal ends that are movable as a group onto a distal ramp element affixed to a distal end of a cannula, so that the distal ends of the fibers can be moved between a retracted position, in which the distal ends of the fibers are within the cannula or ramp element, and an extended position, in which distal ends of the fibers are guided by grooves or channels of the ramp so as to extend at least partially through external openings in the distal end of the laser probe and so as to be pointed angularly away from a longitudinal axis of the cannula.

Provided herein is a multifunctional aesthetic system including a housing, an electromagnetic array situated in the housing and having one or more electromagnetic radiation (EMR) sources, a controller in electronic communication with the array to operate the one or more of the EMR sources to direct the EMR beam to a treatment area, and one or more sensors in electronic communication with the controller for providing feedback to the controller based on defined parameters to allow the controller to adjust at least one operating condition of the multifunctional system in response to the feedback.

A system to treat a patient comprises a user interface that allows a physician to view an image of tissue to be treated in order to develop a treatment plan to resect tissue with a predefined removal profile. The image may comprise a plurality of images, and the planned treatment is shown on the images. The treatment probe may comprise an anchor, and the image shown on the screen may have a reference image marker shown on the screen corresponding to the anchor. The planned tissue removal profile can be displayed and scaled to the image of the target tissue of an organ such as the prostate, and the physician can adjust the treatment profile based on the scaled images to provide a treatment profile in three dimensions. The images shown on the display may comprise segmented images of the patient with treatment plan overlaid on the images.

Particular embodiments disclosed herein provide a surgical laser system comprising first laser source configured to emit a first laser beam with a first wavelength and a second laser source configured to emit a second laser beam with a second wavelength. The surgical laser system further comprises a first diffraction optical element (DOE) tuned to the first wavelength and a second DOE tuned to the second wavelength, wherein the first DOE is configured to diffract the first laser beam into one or more first diffracted beams at a diffraction angle and the second DOE is configured to diffract the second laser beam into one or more second diffracted beams at the same diffraction angle. The surgical laser system further comprises one or more beam splitters configured to reflect the one or more first diffracted beams and the one or more second diffracted beams onto a lens.

Disclosed is a treatment device for occluding a body lumen, including: an elongated body which can be inserted into the body lumen; a flat portion forming section which is supported by the elongated body, is expandable widthwise on a more distal side than the elongated body, and deforms the body lumen into a form having a flat portion at a distal portion of the flat portion forming section upon the expansion of the flat portion forming section within the body lumen; and an administering section which administers, toward the flat portion formed by the flat portion forming section, a treatment which acts to occlude the flat portion.