A handheld, low-level laser apparatus includes a laser diode configured to generate a laser emission having an astigmatism. The apparatus further includes one or more corrective lens configured alone or in combination to correct the astigmatism and to collimate the laser emission, a divergence lens configured to diverge the laser emission after the laser emission passes through the one or more corrective lens, and a front lens configured to collimate the laser emission after the laser emission passes through the divergence lens. A low-level laser beam producing method includes repeatedly directing an IR laser emission through a series of lenses during a first set of time periods and repeatedly directing a visible laser emission through the series of lenses during a second set of time periods, each time period of the first set of time periods being distinct from each time period of the second set of time periods.

An apparatus and method of treatment of an animal using the apparatus are disclosed. The apparatus includes a scalpel, a laser included in the scalpel, and a visible light source included in the scalpel. The visible light source provides a visible targeting beam. The method of treatment includes activating a visible targeting beam in a laser scalpel. The visible targeting beam has an illumination intensity. The method further includes illuminating a tumor that includes cancerous cells and non-cancerous cells with the visible targeting beam, activating an invisible mid-infrared laser included in the scalpel to produce a laser spot at the tumor, and ablating the cancerous cells while leaving the non-cancerous cells substantially undamaged.

Apparatus and techniques described herein can include delivery of a surgical laser beam for tissue excision or to facilitate hemostasis. The surgical laser beam can be generated, for example, using an ultrafast laser source. Such an approach can provide non-invasive treatment in relation to, for example, aerodigestive anatomy, such as for treatment of laryngeal, oropharyngeal, bronchial, and oral cavity tissues. Other generally available laser sources and their associated treatments may present various drawbacks making them less suitable for treatment for laryngeal, pharyngeal or bronchial pathologies, and use of the apparatus and techniques described herein can address such drawbacks.

An ophthalmological device and system is described that allows the simultaneous imaging of an eye using both scanning laser ophthalmoscopy (SLO) and optical coherence tomography (OCT). Further the device and system is capable of targeting and delivering a treatment laser for treatment of an eye condition.

A handpiece assembly for laser treating a target surface and a laser system are disclosed. A handpiece assembly for laser treating a target surface includes a cable connector that is detachably coupled to a power supply and control module. The cable connector is configured to receive power and control signals from the power supply and control module. The handpiece assembly includes a laser module configured to receive the power and control signals from the cable connector and to generate electromagnetic energy based on the received power and control signals. The laser module is a replaceable module that is detachably coupled to the cable connector and a handpiece. The replaceable module allows a particular laser module to be removed from the handpiece assembly and replaced with another laser module. The handpiece assembly further includes the handpiece configured to receive the electromagnetic energy from the laser module and to direct the electromagnetic energy to the target surface.

A laser apparatus comprises a laser outputting laser light at an output location in a mean propagation direction, a surgical laser light application fiber having a fiber axis and a light entry cross section, and a device for connecting the fiber to the laser. The device comprises laser and fiber ports connecting the laser and the fiber to the device, and focusing optics arranged between the laser and fiber ports and coupling a part of the laser light output by the laser at the output location through the light entry cross section into the fiber. The focusing optics focus the laser light with a full convergence angle of not more than 2 onto the light entry cross section; and the focusing optics couple the laser light at an angle between the mean propagation direction and the fiber axis in a range from 2 to 10 into the fiber.

Apparatus and techniques described herein can include delivery of a surgical laser beam for tissue excision or to facilitate hemostasis. The surgical laser beam can be generated, for example, using an ultrafast laser source. Such an approach can provide non-invasive treatment in relation to, for example, aerodigestive anatomy, such as for treatment of laryngeal, oropharyngeal, bronchial, and oral cavity tissues. Other generally available laser sources and their associated treatments may present various drawbacks making them less suitable for treatment for laryngeal, pharyngeal or bronchial pathologies, and use of the apparatus and techniques described herein can address such drawbacks.

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.

A control device, comprising: a processor including hardware, the processor being configured to: control a laser light source to emit a first instance of a laser light, calculate an overlap information related to an overlap area of an irradiation area of an irradiation target that is irradiated with the first instance of the laser light, and control the laser light source to emit a second instance of the laser light based on the overlap information.

A method for marking coagulation sites on a retina by application of a light source including projecting a serial spot sequence from a sequential, one-dimensional series of spots on the retina, wherein the individual spots indicate the coagulation sites; waiting for confirmation of the sequence of individual spots; after confirming, recalculating an automated sequence of steps having a further serial spot sequence and projecting them on the retina according to the first step; and subsequent repeating of the second and third steps. Also, a system for coagulating the retina, having an imaging diagnostic unit, a therapy beam for coagulating coagulation sites, a pilot beam for marking the coagulation sites by a spot sequence, a beam deflecting unit for generating the spot sequence and for positioning the therapy beam, an electronic control unit for controlling the above devices, a software interface, and an interactive interface.