JP5303015B2 - 内視鏡診断装置 - Google Patents
内視鏡診断装置 Download PDFInfo
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- JP5303015B2 JP5303015B2 JP2011186346A JP2011186346A JP5303015B2 JP 5303015 B2 JP5303015 B2 JP 5303015B2 JP 2011186346 A JP2011186346 A JP 2011186346A JP 2011186346 A JP2011186346 A JP 2011186346A JP 5303015 B2 JP5303015 B2 JP 5303015B2
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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
- A61B1/04—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
- A61B1/043—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 for fluorescence imaging
-
- 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
- A61B1/06—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 illuminating arrangements
- A61B1/0638—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 illuminating arrangements providing two or more wavelengths
-
- 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
- A61B1/06—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 illuminating arrangements
- A61B1/0655—Control 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00006—Operational features of endoscopes characterised by electronic signal processing of control signals
-
- 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
- A61B1/00002—Operational features of endoscopes
- A61B1/00004—Operational features of endoscopes characterised by electronic signal processing
- A61B1/00009—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope
- A61B1/000094—Operational features of endoscopes characterised by electronic signal processing of image signals during a use of endoscope extracting biological structures
-
- 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
- A61B1/06—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 illuminating arrangements
- A61B1/063—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 illuminating arrangements for monochromatic or narrow-band illumination
-
- 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
- A61B1/06—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 illuminating arrangements
- A61B1/0653—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 illuminating arrangements with wavelength conversion
Description
前記白色光が前記光源部から前記被検者の被観察領域に照射された場合に、該被検者の被観察領域からの白色光の反射光を受光して通常光画像を撮像し、かつ、前記2以上の励起光が前記光源部から前記被検者の被観察領域に照射された場合に、該被検者の被観察領域に含まれる自家蛍光物質から発せられる自家蛍光を受光して自家蛍光画像を撮像する撮像部と、
前記光源部から発せられる2以上の励起光が血液により吸収され、該2以上の励起光の発光強度が該血液の量に応じて低下するのを防止するための補正係数を有し、該補正係数の中から、前記通常光画像の画像信号に対応する前記2以上の励起光の発光強度の補正係数をそれぞれ求め、該求めたそれぞれの補正係数を用いて、前記2以上の励起光のそれぞれにおける、前記血液による光の吸収の影響が排除されるように、該2以上の励起光の発光強度の比率を補正する光源制御部とを備えることを特徴とする内視鏡診断装置を提供するものである。
以上、本発明について詳細に説明したが、本発明は上記実施形態に限定されず、本発明の主旨を逸脱しない範囲において、種々の改良や変更をしてもよいのはもちろんである。
12 光源装置
14 内視鏡装置
16 プロセッサ装置
18 表示装置
20 入力装置
22 光源制御部
24 コンバイナ
26 カプラ
28 内視鏡挿入部
30 操作部
32A,32B コネクタ部
34 軟性部
36 湾曲部
38 先端部
40 アングルノブ
42A,42B 照明窓
44 観察窓
45 鉗子口
46A,46B,48A,48B 光ファイバ
50A,50B,52A,52B,56 レンズ
54A,54B 蛍光体
57 ハーフミラー
58A,58B 撮像素子
62A,62B スコープケーブル
64A,64B A/D変換器
66 切り替えスイッチ
68 制御部
70 画像処理部
70A 通常光画像処理部
70B 自家蛍光画像処理部
72 記憶部
LD1,LD2 レーザ光源
Claims (8)
- 白色光、および、被検者の被観察領域に含まれる自家蛍光物質から2以上の自家蛍光を発光させるための、中心波長の異なる2以上の励起光を発する光源部と、
前記白色光が前記光源部から前記被検者の被観察領域に照射された場合に、該被検者の被観察領域からの白色光の反射光を受光して通常光画像を撮像し、かつ、前記2以上の励起光が前記光源部から前記被検者の被観察領域に照射された場合に、該被検者の被観察領域に含まれる自家蛍光物質から発せられる自家蛍光を受光して自家蛍光画像を撮像する撮像部と、
前記光源部から発せられる2以上の励起光が血液により吸収され、該2以上の励起光の発光強度が該血液の量に応じて低下するのを防止するための補正係数を有し、該補正係数の中から、前記通常光画像の画像信号に対応する前記2以上の励起光の発光強度の補正係数をそれぞれ求め、該求めたそれぞれの補正係数を用いて、前記2以上の励起光のそれぞれにおける、前記血液による光の吸収の影響が排除されるように、該2以上の励起光の発光強度の比率を補正する光源制御部とを備えることを特徴とする内視鏡診断装置。 - 前記光源制御部は、前記通常光画像の画像信号が所定値よりも小さくなるに従って、前記血液による光の吸収量が大きい励起光の発光強度の方が、該血液による光の吸収量が大きい励起光よりも血液による光の吸収量が小さい励起光の発光強度よりも大きくなるように、前記2以上の励起光の発光強度の比率を補正するものである請求項1に記載の内視鏡診断装置。
- 前記光源制御部は、前記通常光画像の画像信号が所定値よりも大きい場合に、前記2以上の励起光の発光強度の比率が同じある一定の値となるように補正するものである請求項2に記載の内視鏡診断装置。
- 前記光源制御部は、前記通常光画像の画像信号に対応する前記2以上の励起光の発光強度のそれぞれの補正係数が記憶された補正係数テーブルを有し、該補正係数テーブルを用いて、前記通常光画像の画像信号に対応する前記2以上の励起光の発光強度の補正係数をそれぞれ求めるものである請求項1〜3のいずれかに記載の内視鏡診断装置。
- 前記光源部は、前記2以上の励起光として、中心波長405nmおよび445nmの第1および第2励起光を含む請求項1〜4のいずれかに記載の内視鏡診断装置。
- 前記光源部は、前記第1および第2励起光を発するレーザ光源を備えるものである請求項5に記載の内視鏡診断装置。
- 前記光源制御部は、前記通常光画像の緑色の画像信号に基づいて、前記2以上の励起光の発光強度の比率を補正するものである請求項5または6に記載の内視鏡診断装置。
- 前記撮像部は、前記通常光画像を撮像する第1撮像素子と、該第1撮像素子の光路上に配置され、青色、緑色および赤色に応じた波長範囲の光を透過する分光透過特性を有するカラーフィルタと、前記自家蛍光画像を撮像する該第1撮像素子よりも高感度の第2撮像素子と、該第2撮像素子の光路上に配置され、前記2以上の励起光の波長範囲の光を透過しないフィルタとを備えるものである請求項1〜7のいずれかに記載の内視鏡診断装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2011186346A JP5303015B2 (ja) | 2011-08-29 | 2011-08-29 | 内視鏡診断装置 |
US13/596,867 US8915844B2 (en) | 2011-08-29 | 2012-08-28 | Endoscope diagnostic apparatus |
EP12182018A EP2564761A1 (en) | 2011-08-29 | 2012-08-28 | Endoscope diagnostic apparatus |
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JP2011186346A JP5303015B2 (ja) | 2011-08-29 | 2011-08-29 | 内視鏡診断装置 |
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JP2013046688A JP2013046688A (ja) | 2013-03-07 |
JP5303015B2 true JP5303015B2 (ja) | 2013-10-02 |
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JP2011186346A Active JP5303015B2 (ja) | 2011-08-29 | 2011-08-29 | 内視鏡診断装置 |
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US (1) | US8915844B2 (ja) |
EP (1) | EP2564761A1 (ja) |
JP (1) | JP5303015B2 (ja) |
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-
2011
- 2011-08-29 JP JP2011186346A patent/JP5303015B2/ja active Active
-
2012
- 2012-08-28 US US13/596,867 patent/US8915844B2/en not_active Expired - Fee Related
- 2012-08-28 EP EP12182018A patent/EP2564761A1/en not_active Withdrawn
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Publication number | Publication date |
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EP2564761A1 (en) | 2013-03-06 |
US20130053646A1 (en) | 2013-02-28 |
JP2013046688A (ja) | 2013-03-07 |
US8915844B2 (en) | 2014-12-23 |
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