A light therapy diagnostic device comprising a shaft, an optical waveguide disposed in a lumen of the shaft and being movable forward and backward in a longitudinal direction of the shaft, and a transparent member disposed in the lumen and located distal to the optical waveguide, wherein: the optical waveguide guides a first light and a second light; the shaft has a lateral emission window which allows the first light and the second light to be emitted toward a lateral direction and a distal emission window which allows the first light to be emitted toward a distal direction; the optical waveguide includes a core and a clad, wherein a distal end surface of the core is inclined with respect to an optical axis of the optical waveguide; the first light passes through the transparent member in a state where the optical waveguide is in contact with the transparent member.

A drive assembly for driving an imaging catheter has a rotatable fiber and a rotatable drive shaft. The drive assembly includes a fiber optic rotating junction and a motor configured to rotate the rotatable portion of the fiber optic rotating junction. In some embodiments, the drive assembly includes a sensor configured to detect a rotational position of the fiber optic rotating junction and a processor configured to obtain the detected rotational position and stop the motor only when the fiber optic rotating junction is in a predetermined rotational position. In some embodiments, the motor includes a hollow shaft through which at least a portion of the fiber optic rotating junction extends.

A surgical instrument including: a main body; an elongated shaft tube connected to the main body, the shaft tube having at least one working channel tube arranged in an interior of the shaft tube, the at least one working channel tube extending in a longitudinal direction of the shaft tube; and a connection body coupled to a proximal end region of the main body; wherein a proximal end region of the at least one working channel tube is accommodated inside the connection body and is sealed with respect to the connection body.

A laryngoscope that includes a low-profile, straight laryngoscope blade that is thin and tapered in width and height, and designed to be intuitive in use and function. A distal tip of the blade may be configured to be placed in the anterior oropharynx with the angled camera (e.g., 10 degrees-40 degrees), thereby providing views of the airway and facilitating blade advancement. Real-time image data collected during a laryngoscopy may be communicated to a medical professional for immediate and ongoing feedback during a laryngoscopy or communicated to an electronic medical record. The laryngoscope provides first responders and airway managers of varying abilities a unique, portable, wireless laryngoscope to optimally manage airways and provide the greatest likelihood of safe, atraumatic airway access. The laryngoscope with the transformational laryngoscope blade design having an angled camera and wireless video forms a singular, effective instrument for airway managers and medical professionals.

A method of characterizing an optical system, wherein the optical system comprises an optical fibre having a proximal end and a distal end, wherein the optical fibre comprises a non-single-mode optical fibre, and comprising a reflector assembly comprising a stack of reflectors disposed at the distal end of the optical fibre, wherein the stack of reflectors is arranged to provide different reflector matrices in dependence on illumination wavelength. The method comprises projecting calibration patterns at a plurality of characterization wavelengths onto the proximal end, then obtaining, at the proximal end, data relating to reflected calibration patterns. An instantaneous transmission matrix of the optical fibre is then determined using the data relating to the reflected calibration patterns and the reflector matrices.

An image pickup apparatus for endoscope includes an image pickup device, an optical element, an optical fiber, a fiber tube, a plurality of metal cables, a cable tube, and a wire rod wound around the cable tube and the fiber tube to integrate the cable tube and the fiber tube. The plurality of metal cables are fixed to the cable tube deformed by the wire rod. The optical fiber is not fixed to the fiber tube by the wire rod.

A disinfection system is provided. The disinfection system may utilize ultraviolet light and/or ozone for disinfection of infected tissue. For example the system may involve an endoscopic ultraviolet light to disinfect lung tissue. In another aspect, the system may involve a ventilator which provides ozone in small doses to disinfect the tissue. Combinations and variations are further disclosed.

In one embodiment, a method for a stereo endoscope includes receiving electromagnetic radiation through an inner protective window; focusing the electromagnetic radiation with a left optical component toward a left pixel array of a stereo image sensor along an optical axis of the left optical component parallel with but offset from a center axis of the left pixel array; and focusing the electromagnetic radiation with a right optical component toward a right pixel array of the stereo image sensor along an optical axis of the right optical component parallel with but offset from a center axis of the right pixel array. The left pixel array and the right pixel array are offset from the center optical axis of the stereo endoscope to provide stereo image convergence.

The stomach tube is a transparent conduit in the form of a plastic tube which is equipped with an optical fibre with illuminating external surface. Its internal end is placed in the section of the stomach tube for insertion in the patient's stomach. An external end for connection with a light source is provided outside the stomach tube in the section of the stomach tube remaining outside the patient's body. The conduit of the stomach tube in its interior includes a first channel which is a transport channel, and a second channel in which the optical fibre is located. The stomach tube is intended for use in bariatric surgery procedures, and in particular in the sleeve gastrectomy procedure.

A treatment method and a treatment system for irradiating the antibody-photosensitive substance bound to the tumor cell membrane in the tumor cell with the near-infrared ray includes: intravenously administering the antibody-photosensitive substance; inserting an endoscope from a mouth, a nose, or an anal and allowing the endoscope to reach a vicinity of a tumor; making a tubular elongated tube, in which a lumen is formed, protrude from the endoscope; bringing the elongated tube into contact with the tumor while checking an image obtained by the endoscope; allowing an optical fiber inserted into the lumen of the elongated tube to reach an inside or the vicinity of the tumor; and irradiating the antibody-photosensitive substance bound to the tumor cell membrane with the near-infrared ray from the optical fiber after 12 hours to 36 hours from the intravenous administration.