Title:
ENDOSCOPE
Document Type and Number:
WIPO Patent Application WO/2021/161902
Kind Code:
A1
Abstract:
Provided is an endoscope which is capable of preventing flares caused by illumination light reflected by a nozzle, thereby providing a favorable observation image. An endoscope (10) is provided, at the tip surface (28) of a tip part body (30) of an insertion part (12), with: an observation window (34); illumination windows (44, 46) disposed around the observation window (34), and a nozzle (40) having a fluid injection port (52) which is open toward the observation window (34), wherein the nozzle (40) has a light-receiving surface which receives illumination light output from an illumination window (46), at least part of the light-receiving surface comprises a scattering prevention part (58A) configured from a mirror surface, and the scattering prevention part (58A) reflects the illumination light in a direction differing from that of the observation window (34).
Inventors:
KOMUKAI MAKITO (JP)
Application Number:
PCT/JP2021/004194
Publication Date:
August 19, 2021
Filing Date:
February 05, 2021
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
G02B23/24; A61B1/12; G02B23/26
Domestic Patent References:
| WO2018179792A1 | 2018-10-04 | |||
| WO2016181688A1 | 2016-11-17 |
Foreign References:
| JP2005168770A | 2005-06-30 | |||
| JP2016202707A | 2016-12-08 | |||
| JP2012235970A | 2012-12-06 | |||
| JP2006192200A | 2006-07-27 | |||
| JPH09488A | 1997-01-07 | |||
| JPS5987422A | 1984-05-21 |
Attorney, Agent or Firm:
MATSUURA, Kenzo (JP)
Download PDF: