ABNORMALITY DETECTION SYSTEM, LASER TREATMENT DEVICE, AND LASER TREATMENT SYSTEM

• Main Authors: HIYOSHI Katsumi, OKAGAMI Yoshihide, TAMURA Yoshiteru, HONGO Akihito, MURAKAMI Haruhiko
• Format: Patent
• Language: English; French; German
• Published: 20.10.2021
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SURGERY

Provided is an abnormality detection system capable of detecting an abnormality of a laser treatment device highly precisely. The abnormality detection system 1 includes a laser transmission tube 20 coupled with a laser treatment unit 10, oscillating laser light 16a, to transmit the laser light 16a; and a discharge-side water pressure sensor 42 and a water pressure detection liquid surface level meter 43 detecting a change in a pressure of cooling water 18a flowing through a forward-direction space T1 and a backward-direction space T2 in the laser transmission tube 20. The laser transmission tube 20 includes a hollow wavelength path 21 having a lightguide space S formed therein, through which the laser light 16a is guided, the lightguide space S being formed in a longitudinal direction, and an outer case 22 enclosing an outer circumferential surface of the hollow waveguide path 21 and extending in the longitudinal direction. The forward-direction space T1 and the backward-direction space T2 are formed in the longitudinal direction between the hollow waveguide path 21 and the outer case 22. The discharge-side water pressure sensor 42 and the water pressure detection liquid surface level meter 43 detect the change in the pressure of the cooling water 18a flowing through the forward-direction space T1 and the backward-direction space T2 to detect an abnormality.