A digital control laser automatic tooth preparation method and device and a tooth positioner are provided. The device includes an intra-oral three-dimensional scanner, a dental laser, an oral working end, an oral and maxillofacial cone beam CT scanner, a computer, a tooth positioner, a negative-pressure suction device and a real-time monitoring device. The computer is connected respectively with the intra-oral three-dimensional scanner, the dental laser, the oral working end, the oral and maxillofacial cone beam CT scanner, the negative-pressure suction device, and the real-time monitoring device. The dental laser is connected with the oral working end of the digital control laser tooth preparation control system through a light guiding arm (1). The oral working end of the digital control laser tooth preparation control system is connected with the tooth positioner and the real-time monitoring device. The negative-pressure suction device is connected with the tooth positioner.

A laser ablating device for cutting human or animal natural or artificial hard tissue includes: a cutting laser source adapted to provide a pulsed cutting laser beam lasing at a wavelength suitable for ablating the hard tissue; an imaging laser source adapted to provide an imaging laser beam covering a broadband spectral region; and a beam mixing structure and a movable scanner mirror positioned after the beam mixing structure. The beam mixing structure is adapted to redirect the cutting laser beam of the cutting laser source and/or the imaging laser beam of the imaging laser source such that an optical axis of the cutting laser beam is parallel to an optical axis of the imaging laser beam. The scanner mirror is arranged to direct the imaging laser beam and the cutting laser beam when having parallel optical axes.

An ultrafast laser system and application thereof, relates to the technical field of laser, and the system comprises a control module, a laser, an optical path module, a movable platform, a visual locating module, and the control module is connected to the laser and controls an operation of the laser, and the control module is connected to the movable platform and controls a movement of the movable platform, and the optical path module is connected to the laser and is used for transmitting a laser light generated by the laser to the movable platform, and the control module is connected to the visual locating module and controls the visual locating module to position a laser emitting position at a position, and the laser is an ultrafast laser. The system is applied to equipment for removing mole, freckle, or tattoo, which has the advantages of fewer traumas and no pain.

Operations of a laser treatment apparatus are facilitated. A laser treatment apparatus of an embodiment includes an illumination system, observation system, irradiation system, illumination-area changing part, irradiation-condition setting part and controller. The illumination system illuminates an eye fundus. The observation system is used for observing the fundus illuminated. The irradiation system irradiates aiming light of a preset pattern and treatment light consisting of laser light of a pattern determined based on the preset pattern onto the fundus. The illumination-area changing part is used for changing an illumination area of the fundus by the illumination system. The irradiation-condition setting part sets irradiation condition of the aiming light and/or treatment light from the irradiation system. The controller controls the illumination-area changing part based on the set irradiation condition to change the illumination area.

The present disclosure relates to an ophthalmological laser treatment system for treatment of tissue of an eye comprising an ophthalmological laser treatment device comprising a base station having a treatment laser source configured to generate a treatment laser beam, an arm and an application head, wherein the ophthalmological laser treatment system further comprises an ophthalmological patient interface with a cornea contacting element, and a sclera contacting element, wherein the cornea contacting element and the sclera contacting element define a rotationally asymmetric contact surface configured to contact the eye, wherein the ophthalmological patient interface comprises a through opening, which is configured to enable the treatment laser beam from the application head to pass through the ophthalmological patient interface to penetrate a target volume of tissue of the eye.

A method of treatment of skin tissue with two laser devices of unequal wavelengths comprising the steps of: (1) activating the two laser devices simultaneously to produce two laser beams of unequal wavelength; (2) directing the two laser beams into a handpiece having a distal tip to direct the laser beams onto the skin tissue; (3) directing the two laser beams within the handpiece to an adjustable beam deflector; and, (4) the adjustable beam deflector directing the two laser beams onto the skin tissue to produce a pattern of laser spots simultaneously but separated from one another.

An ophthalmic surgery laser system and method of laser delivery for an ophthalmic surgery laser system are disclosed herein. Embodiments of the system and method are directed to an ophthalmic surgery laser system including a laser engine, a laser guide, and a laser shaper. Embodiments of the system and method are directed to a laser delivery system for an ophthalmic surgery laser system. Embodiments of the system and method are directed to an ophthalmic surgery laser system including additional functionality such as laser scanning confocal microscopy, 3D laser scanning, and laser beam diagnostics. Embodiments further include the use of a lower power illumination source.

The presently disclosed subject matter provides techniques for inducing collagen cross-linking in human tissue, such as cartilage, by inducing ionization of the water contained in the tissue to produce free radicals that induce chemical cross-linking in the human tissue. In an embodiment, a femtosecond laser operates at sufficiently low laser pulse energy to avoid optical breakdown of the tissue being treated. In an embodiment, the femtosecond laser operates in the infrared frequency range.

A system includes a focus optic configured to converge an electromagnetic radiation (EMR) beam to a focal region located along an optical axis. The system also includes a detector configured to detect a signal radiation emanating from a predetermined location along the optical axis. The system additionally includes a controller configured to adjust a parameter of the EMR beam based in part on the signal radiation detected by the detector. The system also includes a window located a predetermined depth away from the focal region, between the focal region and the focus optic along the optical axis, wherein the window is configured to make contact with a surface of a tissue.

A treatment device for fractional laser-based skin treatment includes an emission window having an elongated area and predefined locations that are arranged in an elongated array which extends along a treatment axis of the window. A treatment generator has a treatment laser for emitting laser light towards skin tissue from the predefined locations in the emission window for generating, in use, laser-based lesions inside the skin tissue. The treatment device also includes a motion sensor for sensing motion of the treatment device relative to the skin surface, and a controller for determining a non-zero sequence of at least one of the predefined locations from which laser light is consecutively emitted in dependence on the sensed motion. The controller allows generation of the non-zero sequence when the sensed motion of the treatment device relative to the skin surface only has a component in a direction parallel to the treatment axis.