A laser device for dermocosmetic, medical, or aesthetic treatments, comprising: A) a laser system comprising a lamp-pumped source; B) an optical fibre transporting the laser beam produced by said source; C) a handpiece or a scanner connected to said optical fibre, comprising a lens and mirror system projecting the image of the laser beam onto the area to be treated; characterized in that said optical fibre has a rectangular section and said image is rectangular.

A method of dermocosmetic laser treatment characterized by rectangular laser spots is also claimed.

It is a further object of the present invention a tracing kit, which allows the marking of a surface area, preferably of biological tissue, with a fluorescent or photosensitive substance invisible to light. Such an invisible and fluorescent or photosensitive substance absorbs the electromagnetic radiation with the proper wavelength emitted by the illuminator and reflects it in the visible spectrum.

A probe tip for communicating and laterally directing electromagnetic radiation comprises a waveguide, a primary capsule, a compressible member and a malleable secondary capsule. The waveguide is configured to communicate electromagnetic radiation and includes a beveled surface at a distal tip for redirecting electromagnetic radiation in a lateral direction. The primary capsule is attached over the distal tip of the waveguide. The compressible member covers a portion of the primary capsule. The malleable secondary capsule is positioned over the primary capsule and the compressible member, and includes a crimp that compresses the compressible member against the primary capsule and secures the secondary capsule to the primary capsule.

A probe tip for communicating and laterally directing electromagnetic radiation comprises a waveguide, a primary capsule, a compressible member and a malleable secondary capsule. The waveguide is configured to communicate electromagnetic radiation and includes a beveled surface at a distal tip for redirecting electromagnetic radiation in a lateral direction. The primary capsule is attached over the distal tip of the waveguide. The compressible member covers a portion of the primary capsule. The malleable secondary capsule is positioned over the primary capsule and the compressible member, and includes a crimp that compresses the compressible member against the primary capsule and secures the secondary capsule to the primary capsule.

Methods, systems and devices for treating a patient include providing a tissue treatment element constructed and arranged to deliver energy to tissue and treating tissue of the gastrointestinal tract by causing the tissue treatment element to deliver energy to an energy delivery zone. Treatment results in a reduction in the luminal surface area of at least a portion of the gastrointestinal tract. In particular embodiments, the methods, systems and devices are used to treat diabetes.

A system and method are disclosed that use a flexible guide (flap) and a scanning method to control the delivery of light dose to a treatment area. This approach overcomes the non-reliable delivery of light dose with a flap that conforms to the target area. Dosimetry control can be improved through the use of a computer controlled motor to move the laser fibers at known speed over the target tissue. In some embodiments, treatment time is reduced and illumination of large surfaces is achieved by using multiple fibers to deliver the light simultaneously.

An injection needle has an opening at a distal end thereof the injection needle and defines a hole. An optical fiber is configured to output a light from a light source and inserted in the hole. The optical fiber has a distal end positioned on an inner side of the opening. A protector is configured to transmit the light and is positioned further towards an opening side of the injection needle than the distal end. The protector is configured to prevent adherence of tissue to the optical fiber. The light emitted from the optical fiber is configured to irradiated onto a treatment target in a state in which the injection needle is inserted into skin, the distal end is positioned on an inner side of the opening, and the protector is positioned further towards the opening side of the injection needle than the distal end.

A medical device that includes a hand piece; a beam fiber; and a beam disperser located at a distal end of the beam fiber through which beam energy is dispersed. The beam disperser includes one face, or a plurality of substantially planar faces through which the beam energy is dispersed.

A system for use in TFL lithotripsy procedures uses a silica trunk fiber semi-permanently mounted in an endoscope and includes a detachable and replaceable wave guide treatment tip, including hollow wave guides and fiber tips. The system provides for ready removal and replacement of wave guides damaged during lithotripsy. The trunk fiber in the endoscope tube is of diameter 200 m, suitable for use in the lower pole of the kidney, and should be useful over-and-over with only the detachable wave guide removed and replaced, whether during a single procedure or for multiple procedures on different patients in which the endoscope tube and trunk fiber are sterilized between patients. Multiple connector assemblies are provided for optical coupling contact between the detachable wave guide and trunk fiber and include a gap for dissipation of heat between the trunk fiber and the wave guide when in optically coupling contact.

Embodiments of the invention include a method of initiating an optical fiber. In some embodiments, a distal portion of the optical fiber is coated with an energy absorbing material. In some embodiments, the material includes a metal flakes or powder dispersed in a solution of organic solvents. After the material dries, laser energy is fired through the optical fiber. The laser energy can be absorbed in the material and ignites the organic solvents. This combustion melts the material of the optical fiber, and impregnates the optical fiber with the metal flakes or powder of the material. The resulting optical fiber is thus permanently modified so that the energy applied through the fiber is partially absorbed and converted to heat.

Methods and systems for the controlled generation of bubbles in a medium having a liquid phase are generally provided. Laser pulses having a time-dependent pulse parameter controllable over their duration are generated. The medium is irradiated with the laser pulses with a radiant exposure sufficient to initiate microcavitation within the medium during each laser pulse. The time-dependent pulse parameter of each laser pulse is controlled according to a generally positive variation over the pulse duration such that the medium absorbs a greater quantity of energy from the laser pulse at an end of the pulse duration than at a beginning thereof. Such methods and systems may be used for various applications such as biology, medicine or material processing.