JP4500096B2 - 内視鏡及び内視鏡システム - Google Patents
内視鏡及び内視鏡システム Download PDFInfo
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- 230000003287 optical effect Effects 0.000 claims description 63
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- 238000012360 testing method Methods 0.000 description 43
- 238000005286 illumination Methods 0.000 description 18
- 238000011282 treatment Methods 0.000 description 11
- 238000005452 bending Methods 0.000 description 10
- 230000000007 visual effect Effects 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
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- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 3
- 210000002429 large intestine Anatomy 0.000 description 3
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- 230000002596 correlated effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
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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
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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
- A61B1/00163—Optical arrangements
- A61B1/00188—Optical arrangements with focusing or zooming features
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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
- A61B1/00064—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
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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
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
-
- 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
- A61B1/042—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 a proximal camera, e.g. a CCD camera
-
- 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
-
- 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
-
- 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
- G02B23/26—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes using light guides
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- Surgery (AREA)
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- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Heart & Thoracic Surgery (AREA)
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- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Endoscopes (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
Description
前記第1の視野角よりも、広い第2の視野角を有し、前記第1の内視鏡が撮影した同一の前記被検体を撮影したときに、第2の挿入部の第2の先端部の先端面から最短合焦点が第2の距離に設定された第2の観察光学系を具備する第2の内視鏡と、を備え、前記第1の内視鏡が撮影したときのモニタ画面に表示される前記被検体の大きさと、前記第2の内視鏡が撮影したときの前記モニタ画面に表示される前記被検体の大きさと、が略同一となるように、前記第1の距離よりも前記第2の距離を短くしている。
以下、図面を参照して本発明の実施の形態を説明する。
まず図1に基づき、本実施の形態に係わる内視鏡システム1の構成を説明する。図1は本発明の実施の形態に係る内視鏡システム1を概略的に示した説明図である。図1で示すように、第1の内視鏡1a及び第2の内視鏡1b(以下、特に区別しない場合は、内視鏡1a,1bと記載する。)には、湾曲操作や管路系の制御を行う操作部2と、その基端側が操作部2に接続されて体腔内に挿入される挿入部3と、コネクタ部4を有するユニバーサルコード3aとを有する。内視鏡1a,1bは、コネクタ部4を介して、光源装置5、信号処理装置としてのプロセッサ11等の外部機器に所定のコネクタを介して接続されるようになっている。プロセッサ11は、モニタ7に接続されている。なお、前記第1の内視鏡1aと第2の内視鏡1bは、プロセッサ11と光源装置5へ必要に応じてコネクタなどを用いて接続されるか、または、前記プロセッサ11と光源装置5にコネクタにより夫々が常時接続される。
第2の内視鏡1bは、主に第1の内視鏡1aの単焦点レンズ群である第1の観察光学系21aよりも大きい視野角(例えば、約170度)α2(α1<α2)の複数のレンズからなり、単焦点レンズ群である第2の観察光学系21bと、この第2の観察光学系21bの結像位置に配置され、観察部位を撮像する第2の固体撮像素子(以下、第2のCCDと称する)22bと、この第2のCCD22bにより生成された撮像信号の相関二重サンプリング処理を行うCDS回路35、このCDS回路35において処理されたアナログ撮像信号をデジタル撮像信号に変換するアナログ/デジタル変換回路(以下、A/D回路と称する)36からなっている。
代理人 弁理士 伊 藤 進
Claims (8)
- 第1の視野角を有し、被検体を撮影したときに、第1の挿入部の第1の先端部の先端面から最短合焦点が第1の距離に設定された第1の観察光学系を具備する第1の内視鏡と、
前記第1の視野角よりも、広い第2の視野角を有し、前記第1の内視鏡が撮影した同一の前記被検体を撮影したときに、第2の挿入部の第2の先端部の先端面から最短合焦点が第2の距離に設定された第2の観察光学系を具備する第2の内視鏡と、
を備え、
前記第1の内視鏡が撮影したときのモニタ画面に表示される前記被検体の大きさと、前記第2の内視鏡が撮影したときの前記モニタ画面に表示される前記被検体の大きさと、が略同一となるように、前記第1の距離よりも前記第2の距離を短くしたことを特徴とする内視鏡システム。 - 単焦点である第1の視野角を有し、被検体を撮影したときに、第1の挿入部の第1の先端部の先端面から第1の最短合焦点距離が設定された第1の観察光学系を具備する第1の内視鏡と、
単焦点である前記第1の視野角よりも広い第2の視野角を有し、前記第1の内視鏡が撮影した同一の前記被検体を撮影したときに、第2の挿入部の第2の先端部の先端面から第2の最短合焦点距離が設定された第2の観察光学系を具備する第2の内視鏡と、
を備え、
前記第1の内視鏡が撮影したときのモニタ画面に表示される前記被検体の大きさと、前記第2の内視鏡が撮影したときの前記モニタ画面に表示される前記被検体の大きさと、が略同一となるように、前記第1の最短合焦点距離よりも前記第2の最短合焦点距離を短くしたことを特徴とする内視鏡システム。 - 前記第2の距離は、前記第2の内視鏡の前記第2の挿入部の前記第2の先端面に入射する入射光を制限することによって、前記第1の距離よりも短くされることを特徴とする請求項1に記載の内視鏡システム。
- 前記第2の最短合焦点距離は、前記第2の内視鏡の前記第2の挿入部の前記第2の先端面に入射する入射光を制限することによって、前記第1の最短合焦点距離よりも短くされることを特徴とする請求項2に記載の内視鏡システム。
- 前記入射光は、前記第2の観察光学系の絞りを前記第1の観察光学系を含む光学系の絞りよりも絞ることによって、制限されることを特徴とする請求項3、または請求項4に記載の内視鏡システム。
- 前記入射光は、前記第2の観察光学系のレンズ径を前記第1の観察光学系のレンズ径より小さくすることによって、制限されることを特徴とする請求項3、または請求項4に記載の内視鏡システム。
- 第1の視野角を有し、第1の挿入部の第1の先端部の先端面から被写界深度の最近点までの第1の距離が設定された第1の観察光学系を具備する第1の内視鏡と、
前記第1の視野角よりも、広い第2の視野角を有し、第2の挿入部の第2の先端部の先端面から被写界深度の最近点までの第2の距離が設定された第2の観察光学系を具備する第2の内視鏡と、
を備え、
前記第1の内視鏡が前記第1の距離の位置で撮影したときのモニタ画面に表示される被検体の大きさと、前記第2の内視鏡が前記第2の距離の位置で撮影したときの前記モニタ画面に表示される前記被検体の大きさと、が略同一となるように、前記第1の距離よりも前記第2の距離を短くしたことを特徴とする内視鏡システム。 - 前記第1の内視鏡、および前記第2の内視鏡は、同一の外部機器に接続可能であることを特徴とする請求項1から請求項7のいずれかに記載の内視鏡システム。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004132073A JP4500096B2 (ja) | 2004-04-27 | 2004-04-27 | 内視鏡及び内視鏡システム |
CN2005800131609A CN1946332B (zh) | 2004-04-27 | 2005-04-26 | 内窥镜系统 |
PCT/JP2005/007925 WO2005102147A1 (ja) | 2004-04-27 | 2005-04-26 | 内視鏡及び内視鏡システム |
EP05737167A EP1741380B1 (en) | 2004-04-27 | 2005-04-26 | Endoscope system |
KR1020067022244A KR100852310B1 (ko) | 2004-04-27 | 2005-04-26 | 내시경 및 내시경 시스템 |
US11/553,091 US8137264B2 (en) | 2004-04-27 | 2006-10-26 | Endoscope system having two endoscopes with different viewing angles |
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JP2004132073A JP4500096B2 (ja) | 2004-04-27 | 2004-04-27 | 内視鏡及び内視鏡システム |
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JP2005312554A JP2005312554A (ja) | 2005-11-10 |
JP4500096B2 true JP4500096B2 (ja) | 2010-07-14 |
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US (1) | US8137264B2 (ja) |
EP (1) | EP1741380B1 (ja) |
JP (1) | JP4500096B2 (ja) |
KR (1) | KR100852310B1 (ja) |
CN (1) | CN1946332B (ja) |
WO (1) | WO2005102147A1 (ja) |
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WO2005102147A1 (ja) | 2005-11-03 |
JP2005312554A (ja) | 2005-11-10 |
US8137264B2 (en) | 2012-03-20 |
EP1741380A4 (en) | 2008-07-23 |
KR100852310B1 (ko) | 2008-08-14 |
EP1741380A1 (en) | 2007-01-10 |
CN1946332B (zh) | 2011-08-03 |
EP1741380B1 (en) | 2012-12-12 |
CN1946332A (zh) | 2007-04-11 |
KR20070004897A (ko) | 2007-01-09 |
US20070049803A1 (en) | 2007-03-01 |
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