JP4754871B2 - 内視鏡の先端部 - Google Patents
内視鏡の先端部 Download PDFInfo
- Publication number
- JP4754871B2 JP4754871B2 JP2005138652A JP2005138652A JP4754871B2 JP 4754871 B2 JP4754871 B2 JP 4754871B2 JP 2005138652 A JP2005138652 A JP 2005138652A JP 2005138652 A JP2005138652 A JP 2005138652A JP 4754871 B2 JP4754871 B2 JP 4754871B2
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- Prior art keywords
- observation
- lens
- distal end
- endoscope
- unit
- Prior art date
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- Expired - Fee Related
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—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
- A61B1/12—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 with cooling or rinsing arrangements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—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
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00091—Nozzles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—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
- A61B1/00064—Constructional details of the endoscope body
- A61B1/00071—Insertion part of the endoscope body
- A61B1/0008—Insertion part of the endoscope body characterised by distal tip features
- A61B1/00096—Optical elements
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—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
- A61B1/00163—Optical arrangements
- A61B1/00174—Optical arrangements characterised by the viewing angles
- A61B1/00181—Optical arrangements characterised by the viewing angles for multiple fixed viewing angles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—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
- A61B1/04—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 combined with photographic or television appliances
- A61B1/05—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 combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B1/00—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
- A61B1/04—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 combined with photographic or television appliances
- A61B1/05—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 combined with photographic or television appliances characterised by the image sensor, e.g. camera, being in the distal end portion
- A61B1/051—Details of CCD assembly
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2407—Optical details
- G02B23/2423—Optical details of the distal end
- G02B23/243—Objectives for endoscopes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
- G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
- G02B23/2476—Non-optical details, e.g. housings, mountings, supports
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Animal Behavior & Ethology (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- Biophysics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
tanθ=(x−y)/t …(1)
そのため、突出段部25が第2の撮像ユニット30の第1レンズ61aの視野に入らない為には、下記式(2)のtの値よりも小さい寸法に設定すればよい。
例えば、『パラメータ』として、θ=70°程度、x=3.5mm程度、y=1mm程度に設定した場合の『計算結果』は、t=0.91mmとなる。これにより、上記『パラメータ』の場合にはt=0.91mmの値よりも小さい寸法に設定すれば突出段部25が第2の撮像ユニット30の第1レンズ61aの視野に入らないことがわかる。
次に、本出願の他の特徴的な技術事項を下記の通り付記する。
記
(付記項1) 被検体に挿入するための挿入部と、前記挿入部の先端部に突出して設けられ前記被検体を観察するための観察部を配置する突出面と、前記挿入部の非突出面に設けられ、前記観察部に対して流体を送出するためのノズル部と、を有することを特徴とする内視鏡の先端部。
Claims (8)
- 被検体に挿入するための挿入部と、
前記挿入部の先端部に突出して設けられ、前記被検体を観察するための第1の観察部と被検体に照明光を照射するための照明部とを配置する突出面と、
前記挿入部に設けられ、前記突出面と略平行な平面を有する非突出面と、
前記非突出面に配置される第2の観察部と、
前記非突出面に設けられ、前記第2の観察部に対して流体を送出するためのノズル部と、を有し、
前記突出面と前記非突出面との間の段差は、前記突出面が前記第2の観察部の視野に入ることを防止できる高さに形成され、
前記第1の観察部および前記照明部の前端部は、前記突出面の面位置よりも前方に突出されていることを特徴とする内視鏡の先端部。 - 前記ノズル部は送気用もしくは送水用のノズルであることを特徴とする請求項1に記載の内視鏡の先端部。
- 前記ノズル部の先端は前記突出面よりも基端側に配置されていることを特徴とする請求項1に記載の内視鏡の先端部。
- 前記第1の観察部は、約0〜100μmの観察深度を有し、被検体に接触させて観察するための接触型の観察部であることを特徴とする請求項1に記載の内視鏡の先端部。
- 前記段差は、約0.7mm程度に設定されていることを特徴とする請求項1に記載の内視鏡の先端部。
- 前記挿入部の先端部は、前記第1の観察部の配置位置から離れた反対側の先端部側面の角部端縁部に、それ以外の側面の角部端縁部に比べて面取り角が大きい面取り角拡大部を有することを特徴とする請求項1に記載の内視鏡の先端部。
- 前記面取り角拡大部は、面取り角Rが1〜1.3mm程度、前記面取り角拡大部以外の側面の角部端縁部は、面取り角Rが0.7〜1mm程度にそれぞれ設定されていることを特徴とする請求項6に記載の内視鏡の先端部。
- 前記照明部の前端部は、前記第1の観察部の前端部位置よりも前方に突出されていることを特徴とする請求項1に記載の内視鏡の先端部。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005138652A JP4754871B2 (ja) | 2005-05-11 | 2005-05-11 | 内視鏡の先端部 |
CN200680015863XA CN101170941B (zh) | 2005-05-11 | 2006-03-10 | 内窥镜的前端部 |
PCT/JP2006/304744 WO2006120797A1 (ja) | 2005-05-11 | 2006-03-10 | 内視鏡の先端部 |
US11/913,886 US20090253966A1 (en) | 2005-05-11 | 2006-03-10 | Distal end portion of endoscope |
KR1020077025951A KR100986578B1 (ko) | 2005-05-11 | 2006-03-10 | 내시경의 선단부 |
EP06728912A EP1880656B1 (en) | 2005-05-11 | 2006-03-10 | Distal end portion of endoscope |
AU2006245250A AU2006245250B2 (en) | 2005-05-11 | 2006-03-10 | Distal end portion of endoscope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005138652A JP4754871B2 (ja) | 2005-05-11 | 2005-05-11 | 内視鏡の先端部 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006314459A JP2006314459A (ja) | 2006-11-24 |
JP4754871B2 true JP4754871B2 (ja) | 2011-08-24 |
Family
ID=37396317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005138652A Expired - Fee Related JP4754871B2 (ja) | 2005-05-11 | 2005-05-11 | 内視鏡の先端部 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20090253966A1 (ja) |
EP (1) | EP1880656B1 (ja) |
JP (1) | JP4754871B2 (ja) |
KR (1) | KR100986578B1 (ja) |
CN (1) | CN101170941B (ja) |
AU (1) | AU2006245250B2 (ja) |
WO (1) | WO2006120797A1 (ja) |
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-
2005
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2006
- 2006-03-10 WO PCT/JP2006/304744 patent/WO2006120797A1/ja active Application Filing
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- 2006-03-10 KR KR1020077025951A patent/KR100986578B1/ko not_active IP Right Cessation
- 2006-03-10 EP EP06728912A patent/EP1880656B1/en not_active Expired - Fee Related
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EP1880656A1 (en) | 2008-01-23 |
WO2006120797A1 (ja) | 2006-11-16 |
US20090253966A1 (en) | 2009-10-08 |
CN101170941B (zh) | 2011-02-09 |
KR100986578B1 (ko) | 2010-10-07 |
AU2006245250B2 (en) | 2010-06-03 |
EP1880656A4 (en) | 2010-05-05 |
KR20080002938A (ko) | 2008-01-04 |
CN101170941A (zh) | 2008-04-30 |
EP1880656B1 (en) | 2012-08-22 |
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