A device and a method for fractional skin treatment. The device employs two diffractive optical elements. One of the diffractive optical elements provides two coaxial laser beams and another diffractive optical element splits the two coaxial laser beams into a plurality of beamlets. A lens arranged to receive the plurality of the laser beams and to focus them in a skin treatment plane. The lens forms an image where each of the beamlets is imaged as a spot with a high intensity central area and a lower intensity area surrounding the central area.

The invention relates to a system for applying radiation to a target region within a subject. An introduction element (12) like a brachytherapy catheter is inserted into the subject and a radiation source (10) is moved within the introduction element such that it is located within or close to the target region. The target region is heated, wherein the movement of the radiation source within the introduction element is controlled depending on the temperature along the introduction element. The susceptibility of the subject for the radiation emitted by the radiation source at a respective location along the length of the introduction element can depend on the temperature at the respective location such that by controlling the movement of the radiation source depending on the temperature along the length of the introduction element the application of the radiation can be optimized.

A multi-spot ophthalmic laser device that produces spatially distributed laser spots with the spatial distribution of the laser spots defined by a spot diameter to space ratio in the range 1:2 to 1:20. The multi-spot ophthalmic laser device comprises: a laser module producing a laser pulse or sequence of laser pulses each having: a pulse duration in the range of 10 ps to 20 ?s; a wavelength in the range 500 nm to 900 nm; and a pulse energy in the range 10 ?J to 10 mJ per pulse; and an optical beam profiling module that modifies an output beam profile of each pulse of the laser module to deliver multiple spatially distributed laser spots of defined size and energy. The multi-spot ophthalmic laser device is used in a method of improving the function of the retina of a human eye by irradiation through the cornea of the eye to the retinal pigmented epithelium by a treatment laser having a beam profile with spatially distributed energy peaks.

The present disclosure is directed towards a medical instrument. The medical instrument includes a housing and an end effector assembly operably connected to the housing. The end effector assembly includes first and second jaw members each having a tissue contacting surface, at least one of the first and second jaw members movable between a first, spaced-apart position and a second proximate position, wherein in the second position, the jaw members cooperate to define a cavity configured to receive tissue between the jaw members. The end effector also includes at least one light-emitting element coupled to at least one of the first and second jaw members, the at least one light-emitting element adapted to deliver light energy to tissue grasped between the first and second jaw members to treat the tissue.

Provided and described herein are exemplary embodiments of apparatus, system, computer-accessible medium, procedure and method according to the present disclosure which can be used for providing laser steering and focusing for, e.g., incision, excision and/or ablation of tissue in minimally-invasive surgery. For example, an exemplary apparatus is provided that can include at least one optical element which can be configured to refract and/or diffract light provided in a structure which can be configured to be inserted into a body, where at least one of the optical element(s) is structured to receive the light at a first angle and generate a refracted and/or diffracted light at a second angle which can be different from the first angle relative to an optical axis. According to a particular exemplary embodiment of the present disclosure, it is possible to control a light propagating arrangement to (i) provide the at least one light toward the optical element(s) at the first angle, and (ii) change a position thereof within the structure(s) to change the first angle.

The present disclosure is directed towards a medical instrument. The medical instrument includes a housing and an end effector assembly operably connected to the housing. The end effector assembly includes first and second jaw members each having a tissue contacting surface, at least one of the first and second jaw members movable between a first, spaced-apart position and a second proximate position, wherein in the second position, the jaw members cooperate to define a cavity configured to receive tissue between the jaw members. The end effector also includes at least one light-emitting element coupled to at least one of the first and second jaw members, the at least one light-emitting element adapted to deliver light energy to tissue grasped between the first and second jaw members to treat the tissue.

A catheter system includes a catheter having an elongate shaft, a balloon and a light guide. The balloon expands from a collapsed configuration to a first expanded configuration. The light guide is disposed along the elongate shaft and is in optical communication with a light source and a balloon fluid. A first portion of the light guide extends into a recess defined by the elongate shaft. A protection structure is disposed within the recess and is in contact with the first portion of the light guide. The light source provides pulses of light to the balloon fluid, thereby initiating plasma formation and rapid bubble formation within the balloon, thereby imparting pressure waves upon a vascular lesion. The protection structure can provide structural protection from the pressure waves to the first portion of the light guide.

A catheter system for pressure wave and inertial impulse generation for intravascular lesion disruption at a treatment site includes a catheter including an elongate shaft and balloon coupled to the elongate shaft. The catheter system includes a light guide disposed along the elongate shaft and at least partially within the balloon, where the light guide is in optical communication with a light source and a balloon fluid. The catheter can include a first focusing element located at a distal portion of the light guide and in optical communication with the light source. The first focusing element can direct light from within the light guide to a first location at a first distance away from the distal portion of the light guide to initiate plasma formation in the balloon fluid away from the distal portion and to cause rapid bubble formation, thereby imparting pressure waves at the treatment site.

The present disclosure is directed towards a medical instrument. The medical instrument includes a housing and an end effector assembly operably connected to the housing. The end effector assembly includes first and second jaw members each having a tissue contacting surface, at least one of the first and second jaw members movable between a first, spaced-apart position and a second proximate position, wherein in the second position, the jaw members cooperate to define a cavity configured to receive tissue between the jaw members. The end effector also includes at least one light-emitting element coupled to at least one of the first and second jaw members, the at least one light-emitting element adapted to deliver light energy to tissue grasped between the first and second jaw members to treat the tissue.

Improved/efficient fiber laser systems are provided for medical/cosmetic applications, comprising at least one pump source, optically coupled with at least one fiber laser. The fiber laser comprises an irregularly-shaped single-, double- or multiple-clad fiber of unconventional structure and geometry, and means for partially/completely reflecting the pump radiation, such as Bragg gratings. The fiber laser system further comprises at least one fiber optic delivery device optically coupled with the pump source, with the irregularly-shaped single-, double- or multiple-clad fiber laser, or with both, to convey laser radiation to a treatment site. The fiber optic delivery device comprises one or more waveguides, preferably optical fibers. The irregularly-shaped fiber laser and waveguides of the fiber optic delivery device have the same or different tip configurations to perform the treatment according to therapeutic needs. In a preferred embodiment, the fiber laser treatment system operating at 91530 nm, 97530 nm and/or 155040, comprises control means to select delivery of one, two or three output laser beams, and regulates their respective output powers.