J. Morita Manufacturing Corporation

Kabushiki Kaisha Morita Seisakusho

Hoya Corporation

Fujikura Limited

Akira Yuba

Kenzo Kataoka

Masaki Odaka

Yoshihide Okagami

Takashi Tsumanuma

Sadahiro Nakajima

Eiichi Arai

Keiji Kaneda

Odaka Masaki

Yoshisaburo Fujimura

Koichi Yamazaki

Hiroshi Komori

Naoshi Endo

A device for detecting failures in a laser transmitting passage includes an inner tube (,) made from an optical hollow waveguide and having a first space (,) through which laser is transported, an outer tube (,) surrounding and extending along the inner tube, and a detector which recognizes a first condition in which the first space is fluidly disconnected from the second space and a second condition in which the first space is fluidly connected to the second space. The first and second conditions can be determined from a pressure, flow rate, gas concentration, ingredient of gas, or temperature in first or second space.

Apparatus and method for detecting failures in laser transmitting tube and laser device

A medical laser treatment device comprises a handpiece having a handpiece body and a laser probe to be attached to the handpiece body, a laser light source, and a light transmission member which guides laser light to the handpiece. The laser probe has a fiber probe having an emission face through which the laser light is emitted to an irradiation region, an annular protection tube which covers the peripheral face of the fiber probe, and a holder which holds the fiber probe and the protection tube. The protection tube has a curved part extending with being curved. A first fiber curved part is formed in the fiber probe by passing the fiber probe through the protection tube. A second fiber curved part having a radius of curvature is smaller than that of the first fiber curved part is disposed in a tip end portion of a fiber probe.

Medical laser treatment device and laser probe for the same

A medical X-ray apparatus capable of indicating the center of radiation cone of X-ray, regardless of the positioning distance or angle, always with high visibility on the irradiation surface of the patient,

Medical x-ray apparatus, irradiation tube, medical position indicating

A medical laser treatment device comprising a laser generation source and a laser handpiece which comprises a light-guiding fiber used to guide a laser beam irradiated from the laser generation source, a probe for guiding the laser beam having been guided by the fiber to an object to be irradiated, at least two independent air supply passages and at least one water supply passage, the laser handpiece being adapted such that the emission end of the light-guiding fiber is airtightly isolated from the incident end of the probe via a light-guiding shield plate to make the internal section of the light-guiding fiber airtight, to cool the emission end of the light-guiding fiber using dry gas supplied from the first air supply passage and to cool the incident end of the probe using gas supplied from the second air supply passage, and being also arranged such that water supplied from the water supply passage is blown out from the peripheral section of the leading end of the probe, thereby preventing the emission end of said light-guiding fiber from absorbing moisture and being heated.

Medical laser treatment device

A medical laser handpiece comprising a grip body, a semiconductor laser generator disposed in the grip body and an irradiation nozzle which is detachably cross-connected to the head of the grip body at an angle and includes a laser light transmitting means from the semiconductor laser generator. With this laser handpiece, an operator can accurately and easily treat even relatively small and complicated shaped teeth and periodontal sections in the mouth. In addition to a structure capable of irradiating laser lioght and a structure capable of cooling the semiconductor generator, this invention also includes a structure capable of jetting air, water and a mist of air and water, and a structure capable of reducing irradiation loss of laser light.

Medical laser handpiece

Growing community of inventors

Kyoto, Japan

Akira Yuba