公开(公告)号：JP2000126157A

公开(公告)日：2000-05-09

申请号：JP30540098

申请日：1998-10-27

Applicant: HAMAMATSU PHOTONICS KK

Inventor： BA TOSHITAKE ,  SAKAMOTO SHIGERU ,  SHINODA KAZUNORI

IPC: A61B5/08 ,  A61B5/087

Abstract: PROBLEM TO BE SOLVED: To provide a nasal cavity ventilation rate-inspecting instrument which can measure a snorting pattern of a subject at a higher accuracy. SOLUTION: An inspecting instrument 10 which is designed to inspect the degree of nostril snorting of a subject P by imaging a snorting pattern of waster drops W generated on the entire surface 1a of an examination plate 1 is provided with an optical system to irradiate the plate 1 with parallel light from the side of the other surface 1b thereof, a spot light source 5 to admit the light into the plate 7, an imaging device 6 which receives the light emitted fro the plate 1 through the optical system to photograph a snorting pattern and a case 8 which has an opposed surface 11a facing the mouth of the subject P while covering the light source 5, the optical system and the imaging device with the one surface arranged with the opposed surface 11a at an acute angle. In this case, when the subject places his nose on the plate 1, his mouth is becomes hard to hit against the case thereby enabling stale arrangement thereof at a proper position. Moreover, the combination of the light source 5 and the optical system allows reduction in occupying spaces of the light source 5, the optical system and the imaging device 6.