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1. (WO2018179792) ENDOSCOPE
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Pub. No.: WO/2018/179792 International Application No.: PCT/JP2018/002918
Publication Date: 04.10.2018 International Filing Date: 30.01.2018
IPC:
A61B 1/00 (2006.01) ,A61B 1/07 (2006.01) ,A61B 1/12 (2006.01) ,G02B 23/26 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
1
Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
1
Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
06
with illuminating arrangements
07
using light-conductive means, e.g. optical fibres
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
1
Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
12
with cooling or rinsing arrangements
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
23
Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
24
Instruments for viewing the inside of hollow bodies, e.g. fibrescopes
26
using light guides
Applicants: HOYA CORPORATION[JP/JP]; 6-10-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo 1608347, JP
Inventors: TAJIMA, Yuki; JP
SOMEKAWA, Kensei; JP
Agent: KOHNO, Hideto; JP
KOHNO, Takao; JP
Priority Data:
2017-07239931.03.2017JP
Title (EN) ENDOSCOPE
(FR) ENDOSCOPE
(JA) 内視鏡
Abstract:
(EN) Provided is an endoscope (10) that makes it possible to obtain a satisfactory observation field. The endoscope (10) is provided with an illumination window (52) protruding from the end surface (561) of an insertion section, an observation window (51) protruding from the end surface (561), and a discharge port (67) that protrudes from the end surface (561) and that discharges water or air on the observation window (51). The endoscope (10) satisfies formula (1) and formula (2). Formula (1): C ≥ D. Formula 2: 2N ≥ C. C is the maximum amount by which the observation window (51) protrudes from the end surface (561) of the insertion section (20). D is the maximum amount by which the illumination window (52) protrudes from the end surface (561) of the insertion section (20). N is the maximum amount by which the inner surface of the discharge port (67) protrudes from the end surface (561) of the insertion section (20).
(FR) La présente invention concerne un endoscope (10) permettant d’obtenir un champ d’observation satisfaisant. L’endoscope (10) est muni d’une fenêtre d’éclairage (52) faisant saillie depuis la surface d’extrémité (561) d’une section d’insertion, d’une fenêtre d’observation (51) faisant saillie depuis la surface d’extrémité (561), et d’un orifice d’évacuation (67) qui fait saillie depuis la surface d’extrémité (561) et qui évacue de l’eau ou de l’air sur la fenêtre d’observation (51). L’endoscope (10) satisfait la formule (1) et la formule (2). Formule (1) : C ≥ D. Formule 2 : 2N ≥ C. (C) est la quantité maximale par laquelle la fenêtre d’observation (51) fait saillie depuis la surface d’extrémité (561) de la section d’insertion (20). (D) est la quantité maximale par laquelle la fenêtre d’éclairage (52) fait saillie depuis la surface d’extrémité (561) de la section d’insertion (20). (N) est la quantité maximale par laquelle la surface interne de l’orifice d’évacuation (67) fait saillie depuis la surface d’extrémité (561) de la section d’insertion (20).
(JA) 良好な観察視野を得る内視鏡(10)を提供すること。 内視鏡(10)は、挿入部の端面(561)から突出する照明窓(52)と、前記端面(561)から突出する観察窓(51)と、前記端面(561)から突出し、前記観察窓(51)に水または空気を出射する出射口(67)とを備え、(1)式および(2)式を満たす。 C≧D ‥‥‥ (1) 2N≧C ‥‥‥ (2) Cは、観察窓(51)の、挿入部(20)の端面(561)からの最大突出量である。 Dは、照明窓(52)の、挿入部(20)の端面(561)からの最大突出量である。 Nは、出射口(67)の内面の、挿入部(20)の端面(561)からの最大突出量である。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)