A device configured to cut hair using laser light includes a handle portion and a shaving portion. The handle portion includes a battery and a laser light source. The laser light source is coupled to and configured to receive power from the battery. The laser light source is also configured to generate laser light having a wavelength selected to target a predetermined chromophore to effectively cut a hair shaft. The shaving portion includes a support and a single fiber optic supported by the support. The fiber optic has a proximal end, a distal end, an outer wall, and a cutting region positioned towards the distal end and extending along a portion of the side wall. The fiber optic is positioned to receive the laser light from the laser light source at the proximal end, conduct the laser light from the proximal end toward the distal end, and emit the light out of the cutting region and toward hair when the cutting region is brought in contact with the hair.

Apparatus for the treatment of a target tissue with a laser beam in which the target tissue is immersed in a liquid medium within a body lumen. The laser device is configured to provide one or more laser pulses which are configured by a controller to have an energy sufficient to form one or more vapor bubbles in the liquid medium at the distal delivery end of the fiber. The one or more pulses are configured by the controller to: first, cause a vapor bubble to be formed distally of the distal end portion of the endoscope and around the distal delivery end of the optical fiber; second, cause a second bubble to be formed distally of the first bubble; and, third, inflate the second bubble as the first bubble has begun to collapse to expand an amount sufficient to displace a substantial portion of the liquid medium from the space between the distal delivery end of the fiber and the target tissue.

Systems and methods are disclosed that facilitate the local therapy of tissue within the body. In some example embodiments, infrared laser pulses are locally delivered, via optical fiber, to an intracorporal target tissue region and are provided with pulse conditions suitable for causing local tissue disruption and liquification, leading to fine tissue disruption, tissue homogenization, and removal of vasculature and interstitial fluid channels, and enabling passage of the distal tip of the optical fiber into the target tissue region without substantial tissue deformation and damage along a preferred surgical pathway. When optical fiber emitting such pulses is employed to penetrate tumor tissue, the resulting reduction of interstitial fluid pressure facilitates the subsequent injection of a drug into the tumor, enabling the drug to remain localized within the tumor with reduced diffusion. The tumor disruption and subsequent drug delivery may be performed using an integrated optical and fluidic delivery device.

An optical-fiber-based optical switch arrangement configured to redirect light from axial propagation to off-axis propagation due to axial repositioning of the optical fiber within the optical termination element and internally reflecting light in an annular fashion off the axis in one state of the switch arrangement and not in the other.

A hair cutting device according to the present disclosure comprises an optical waveguide. The optical waveguide comprises a light irradiator. The light irradiator irradiates hair protruding from the skin with light to cut the hair. The refractive index of the light irradiator is smaller than the refractive index of the surface of the skin. As a result, options such as the material of the optical waveguide and the like can be increased. Furthermore, for example, when the skin is appropriately irradiated with light from the light irradiator, an action on the skin such as sterilization or activation can also be expected.

An apparatus for aiding the removal of cataracts in which an optical fiber delivers sufficient optical energy of the correct wavelength, pulse duration to achieve controlled non-thermal and non-acoustic dissolution of hard cataract tissue.

A laser resectoscope for minor caliber includes a water back system, a water inlet system, a laser sheath system, an observation system. The water back system includes a water return pipe and a water outlet structure. The water inlet system includes a water inlet pipe and a water inlet structure. The laser sheath system includes a laser sheath, an optical fiber and a laser head. The observation system includes a mirror tube and an eyepiece. It is increased for the water return of the laser resectoscope, and the laser resectoscope in F24 can be used to meet the surgical requirements of the conventional laser resectoscope in F26 clinically.

Particular embodiments disclosed herein provide methods and systems for aligning multi-core fibers with multi-spot laser beam patterns of laser surgical systems. In particular, certain aspects provide techniques for aligning a rotational angle, or clocking angle, of a multi-core fiber with a fixed multi-spot laser beam pattern of a laser system utilizing digital imaging and analysis.

An apparatus for aiding the removal of cataracts in which an optical fiber delivers sufficient optical energy of the correct wavelength, pulse duration to achieve controlled non-thermal and non-acoustic dissolution of hard cataract tissue.

A balloon catheter according to the present disclosure includes: an elongated member; and an inflatable member supported on an outer surface of the elongated member and inflatable outward in a radial direction of the elongated member, in which from an inner side to an outer side in the radial direction, a laser emission unit that can emit a laser beam outward in the radial direction, a transmission portion that can transmit the laser beam emitted from the laser emission unit in the radial direction, and a light absorption portion that can absorb the laser beam having passed through the transmission portion are provided, and the laser emission unit, the transmission portion, and the light absorption portion are provided only in the elongated member, only in the inflatable member, or in both the elongated member and the inflatable member in a divided manner.