JP2014030752A - ソリッドステート型の観察方向可変型内視鏡 - Google Patents
ソリッドステート型の観察方向可変型内視鏡 Download PDFInfo
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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
- A61B1/00002—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
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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
- A61B1/00002—Operational features of endoscopes
- A61B1/00043—Operational features of endoscopes provided with output arrangements
- A61B1/00045—Display arrangement
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- 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
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- A—HUMAN NECESSITIES
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- 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
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- A61B1/00163—Optical arrangements
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- A61B1/00181—Optical arrangements characterised by the viewing angles for multiple fixed viewing angles
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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
- A61B1/04—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
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- 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
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- 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
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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
- A61B1/00174—Optical arrangements characterised by the viewing angles
- A61B1/00183—Optical arrangements characterised by the viewing angles for variable viewing angles
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Abstract
【解決手段】内視鏡であって、内視鏡の長手方向軸から角度オフセットされた光学軸を備え、光学軸が長手方向軸に対して0度より大きい角度で存在する広角レンズを有する。広角レンズシステムは、少なくとも長手方向軸と長手方向軸に対して90度より大きい角度との間にわたって内視鏡撮像領域を連続的に収集する。内視鏡は、広角レンズシステムによって伝送された内視鏡画像の少なくとも一部を受けて内視鏡撮像領域に対応する出力信号を生成する撮像面範囲を備える撮像素子と、出力信号を受けて画像信号を生成する画像形成回路と、をさらに備える。
【選択図】図2A
Description
60 長手方向軸
130 内視鏡観察領域,観察領域,領域
150 伝送システム
160 光学軸,光学中心
165 広角レンズ,広角レンズシステム
170 撮像面範囲,センサピクセル,領域
175 撮像センサ(撮像素子)
180 関心領域画像,局所画像,局所観察
200 画像形成回路
202 画像選択回路
204 画像制御回路
206 ユーザ入力部,入力部
208 映像処理回路
210 ディスプレイ
212 出力信号
214 画像信号,信号
216 関心領域信号,ROI信号
218 領域選択,選択
220 領域制御信号
222 映像信号
270 映像信号,全体画像,大型領域
Claims (21)
- 内視鏡であって、
当該内視鏡の長手方向軸から角度オフセットされた光学軸を備え、前記光学軸が前記長手方向軸に対して0度より大きい角度で存在する広角レンズシステムであって、当該広角レンズシステムが少なくとも前記長手方向軸と前記長手方向軸に対して90度より大きい角度との間にわたって内視鏡撮像領域を連続的に収集する広角レンズシステムと、
前記広角レンズシステムによって伝送された内視鏡画像の少なくとも一部を受けて前記内視鏡撮像領域に対応する出力信号を生成する撮像面範囲を備える撮像素子と、
前記出力信号を受けて画像信号を生成する画像形成回路と、
前記広角レンズシステム及び前記撮像素子の間の伝送経路に存在する画像再分布伝送システムと、
を備え、
前記画像再分布伝送システムは、前記撮像面範囲上の前記内視鏡撮像領域の分布が、均一な情報密度を有するように、前記内視鏡撮像領域の分布を変更して、前記撮像面範囲に対応させる、少なくとも1つのレンズを備え、
前記少なくとも1つのレンズは、前記長手方向軸において前記内視鏡撮像領域のほぼ全体を分布させて、前記撮像面範囲に対応させることを特徴とする内視鏡。 - 前記画像再分布伝送システムは、f−θレンズシステムを備えることを特徴とする請求項1に記載の内視鏡。
- 前記撮像面範囲は、四角形、円または楕円であることを特徴とする請求項1に記載の内視鏡。
- 前記撮像面範囲は、16:9のHDの縦横比を有することを特徴とする請求項1に記載の内視鏡。
- HD撮像センサをさらに備えることを特徴とする請求項1に記載の内視鏡。
- 広角レンズシステムは、130°〜160°の観察範囲を有することを特徴とする請求項1に記載の内視鏡。
- 前記観察範囲は、前記長手方向軸に対して−45°〜+115°であることを特徴とする請求項1に記載の内視鏡。
- 当該内視鏡によって収集される撮像領域は、前方観察と後方観察との両方を同時にもたらすことを特徴とする請求項1に記載の内視鏡。
- 前記広角レンズシステムは、不均一な情報分布をもたらすことを特徴とする請求項1に記載の内視鏡。
- 前記撮像面範囲は、長方形であり、前記内視鏡撮像領域の長手方向の寸法に一致する長手方向の寸法を備えることを特徴とする請求項1に記載の内視鏡。
- 前記画像再分布伝送システムは、前記内視鏡撮像領域の分布を変更して、前記撮像面範囲に対応させる、少なくとも1つのレンズを備えることを特徴とする請求項1に記載の内視鏡。
- 前記少なくとも1つのレンズは、前記長手方向軸において前記内視鏡撮像領域のほぼ全体を分布させて、前記撮像面範囲に対応させることを特徴とする請求項3に記載の内視鏡。
- 前記撮像素子は、固体撮像素子であることを特徴とする請求項1に記載の内視鏡。
- 前記画像再分布伝送システムは、前記撮像領域を再分布して、前記撮像面範囲に亘って情報密度を均一にすることを特徴とする請求項1に記載の内視鏡。
- 内視鏡であって、
当該内視鏡の長手方向軸から角度オフセットされた光学軸を備え、前記光学軸が前記長手方向軸に対して0度より大きい角度で存在する広角レンズシステムであって、当該広角レンズシステムが少なくとも前記長手方向軸と前記長手方向軸に対して90度より大きい角度との間にわたって内視鏡撮像領域を連続的に収集する広角レンズシステムと、
前記広角レンズシステムによって伝送された内視鏡画像の少なくとも一部を受けて前記内視鏡撮像領域に対応する出力信号を生成する撮像面範囲を備える撮像素子と、
前記出力信号を受けて画像信号を生成する画像形成回路と、
前記画像信号を受けて前記内視鏡撮像領域よりも小さい関心領域に対応する関心領域信号を生成する画像選択回路と、
ユーザ入力部から前記関心領域の選択を受けて前記関心領域を識別する領域制御信号を生成する画像制御回路と、
を備え、
前記画像選択回路は、前記領域制御信号を受けて前記領域制御信号に対応する前記関心領域信号を生成し、
ユーザ入力部は、プリセットされた前記標準内視鏡観察角度の少なくとも1つをユーザが選択することを可能とし、前記画像制御回路にその選択に対応する領域制御信号を生成させ、
ユーザ入力部は、連続的な調節をユーザが選択することを可能とし、前記関心領域を増加的に変更する調節信号を生成し、
前記画像選択回路は、前記関心領域信号によって形成される画像を回転させることを特徴とする内視鏡。 - ユーザは、当該内視鏡の前記長手方向軸に対して0°、30°、45°、または70°の観察角度を選択することを特徴とする請求項15に記載の内視鏡。
- 前記関心領域は、標準内視鏡観察角度に対応することを特徴とする請求項15に記載の内視鏡。
- 前記調節信号は、少なくとも1つのプリセットされた前記標準内視鏡観察角度において上方または下方へ前記観察角度を増加的に変更することを特徴とする請求項15に記載の内視鏡。
- 前記調節信号は、2つの長手方向で前記関心領域の範囲を増加的に増大させることを特徴とする請求項15に記載の内視鏡。
- 前記画像選択回路は、前記関心領域信号によって形成される画像を前記観察角度の軸回りで回転させることを特徴とする請求項15に記載の内視鏡。
- 前記調節信号は、もとの関心領域上に長手方向に存在するピクセルを組み入れることによって、また、これらのピクセルを関心領域信号に組み入れることによって、前記関心領域を増加的に拡大することを特徴とする請求項15に記載の内視鏡。
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Application Number | Priority Date | Filing Date | Title |
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US12/169,290 | 2008-07-08 | ||
US12/169,290 US8814782B2 (en) | 2008-07-08 | 2008-07-08 | Solid state variable direction of view endoscope |
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JP2009161999A Division JP5368198B2 (ja) | 2008-07-08 | 2009-07-08 | ソリッドステート型の観察方向可変型内視鏡 |
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JP2014030752A true JP2014030752A (ja) | 2014-02-20 |
JP5676712B2 JP5676712B2 (ja) | 2015-02-25 |
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JP2013189430A Active JP5676712B2 (ja) | 2008-07-08 | 2013-09-12 | ソリッドステート型の観察方向可変型内視鏡 |
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US (1) | US8814782B2 (ja) |
EP (1) | EP2143374B1 (ja) |
JP (2) | JP5368198B2 (ja) |
CA (1) | CA2671100C (ja) |
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