J. Morita Manufacturing Corporation

Hoya Corporation

Hitachi Cable, Inc.

J. Morita Mfg. Corporation

Other

Kobe University

Kabushiki Kaisha Morita Seisakusho

J. Morita Manugacituring Corporation

Yoshihide Okagami

Akihito Hongo

Masaki Odaka

Yoshiteru Tamura

Kenzo Kataoka

Mitsunobu Miyagi

Sadahiro Nakajima

Akira Yuba

Katsumi Hiyoshi

Haruhiko Murakami

Mikinori Nishimura

Yoshinori Morita

Eiichi Arai

Naoshi Endoh

Takeshi Azuma

Yuji Kato

Naoshi Endo

Odaka Masaki

Ken Azuma

An abnormality detection system for highly precise detection of an abnormality in a laser treatment device includes a laser transmission tube coupled with a laser treatment unit, oscillating laser light, a discharge-side water pressure sensor, and a water pressure detection liquid surface level meter detecting a change in a pressure of cooling water flowing through forward-direction and a backward-direction spaces in the laser transmission tube. The laser transmission tube includes a hollow wavelength path having a lightguide space formed in a longitudinal direction, and an outer case enclosing an outer circumferential surface of the hollow waveguide path and extending in the longitudinal direction. The discharge-side water pressure sensor and the water pressure detection liquid surface level meter detect the change in the pressure of the cooling water flowing through in a forward-direction space and a backward-direction space to detect any abnormality.

Abnormality detection system, laser treatment device, and laser treatment system

A laser tip, a laser treatment tool, a laser treatment device and a laser treatment system are provided for performing laser treatment surgery and minimizing any bleeding. A laser tip is attachable to a laser radiation opening located at the tip end of a laser transmission tube. The laser tip includes an attaching portion detachable from the laser radiation opening and a contact portion contactable with biological tissue. The contact portion is at the front of the attaching portion in the direction in which the laser light exits the laser radiation opening. An open space is located between the contact portion and the attaching portion, and a coupler couples a part of the contact portion and a part of the attaching portion. The contact portion has a reflective surface at a rear end thereof which reflects the laser light toward the coupler.

Laser tip, laser treatment tool, laser treatment device, and laser treatment system

An object is to provide a laser treatment tool capable of guiding a plurality of fluids, a laser transmission path insertable into such a laser treatment tool, and an external tube for forming the laser transmission path. In an external tubewhich forms a laser transmission pathtogether with a lengthy hollow waveguide pathfor guiding treatment laser lightand has an inner insertion spacefor allowing insertion of the hollow waveguide path, a plurality of sub passagesand cooling water passagesare provided outside the hollow waveguide path, inserted into the insertion space, along a longitudinal direction of the insertion space

External tube, laser transmission path, and laser treatment tool

The object is to provide a rotation support mechanism capable of adjusting a load acting on an inclinable and rotatable arm section to improve the operability of the arm section. The rotation support mechanism supports a protect pole with respect to a device main body such that the protect pole is inclinable and rotatable about a rotation axis as a rotation center. The rotation support mechanism includes a tensile spring for supplying the protect pole with a rotation urging force for directing the protect pole from an inclined state toward a most upright state in accordance with the inclination angle of the protect pole about the rotation axis as the rotation center, and also includes a cam surface for adjusting the rotation urging force to a desired rotation urging force in accordance with the inclination angle.

Rotation support mechanism and laser device

A medical laser probe having a dielectric thin film which is coated on the inside wall of a metal pipe and is transparent at a wavelength band of a transmitted laser light is disclosed. The laser probe is detachable to be disposed and reused and satisfies the required characteristics such as low loss transmission, non-toxicity, mechanical strength, heat resistance, moisture resistance, resistance to chemicals, echonomical efficiency, easy-to-use, and the like.

Detachable laser probe having reduced attenuation

A polyimide resin layer is formed on an inner surface of a metal pipe or a non-metallic pipe having a metal thin film on an inner surface to provide an optical hollow waveguide. The polyimide resin layer is transparent relative to a wavelength band of a laser light transmitted through the optical hollow waveguide. The optical hollow waveguide is fabricated by supplying solution of polyimide precursor to a hollow internal of the metal pipe or the non-metallic pipe, and heating and drying the solution to provide a polyimide resin layer. The solution-supplying step and the solution-heating and drying step are repeated to increase a thickness of the polyimide resin layer up to a predetermined value.

Optical hollow waveguide, method for fabricating the same, and laser

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 laser treatment device provided with a laser light source, a laser-light transmitting optical fiber for transmitting laser light output from the laser light source and a probe for guiding the laser light transmitted by the laser-light transmitting optical fiber to an object to be irradiated. Further, the probe is constituted by a laser-light guiding optical fiber separated from the laser-light transmitting optical fiber. Moreover, a cooling chamber for cooling the optical fibers is provided in the neighborhood of an output end of the laser-light transmitting optical fiber, from which the transmitted laser light is output, and an input end of the laser-light guiding optical fiber, from which the laser light output by the laser-light transmitting optical fiber is input to the laser-light guiding optical fiber. Thereby, a medical treatment of a deep part of an affected or diseased region can be achieved without worsening the state of the exit of the laser-light transmitting optical-fiber. Moreover, the output end of the laser-light transmitting optical-fiber can be kept in a favorable condition even after the medical treatment of the deep part of the affected region. Thus there is no obstacle to the next treatment thereof.

Laser treatment device

Growing community of inventors

Kyoto, Japan

Yoshihide Okagami