JP2010017552A - 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
- A61B1/0005—Display arrangement combining images e.g. side-by-side, superimposed or tiled
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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
- A61B1/00163—Optical arrangements
- A61B1/00174—Optical arrangements characterised by the viewing angles
- A61B1/00179—Optical arrangements characterised by the viewing angles for off-axis viewing
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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
- A61B1/00181—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
- A61B1/00174—Optical arrangements characterised by the viewing angles
- A61B1/00183—Optical arrangements characterised by the viewing angles for variable viewing angles
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- 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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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
Claims (23)
- 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、
を備えることを特徴とする内視鏡。 - 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。
- 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2に記載の内視鏡。
- 前記標準内視鏡観察角度は、0、30、45及び70度からなる群から選択されることを特徴とする請求項3に記載の内視鏡。
- 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をさらに備え、
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することを特徴とする請求項2に記載の内視鏡。 - 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ることを特徴とする請求項5に記載の内視鏡。
- 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することを特徴とする請求項6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7に記載の内視鏡。
- 前記調節信号は、少なくとも一方の長手方向において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7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9に記載の内視鏡。
- 前記ユーザ入力部は、ユーザが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可能とすることを特徴とする請求項5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回転させることを特徴とする請求項5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12に記載の内視鏡。
- 前記画像信号に基づいて映像信号を生成し、前記映像信号をディスプレイに出力する映像処理回路をさらに備えることを特徴とする請求項2に記載の内視鏡。
- 前記映像処理回路は、前記画像信号に基づく全画像映像信号を生成し、前記全画像映像信号を前記ディスプレイに出力することを特徴とする請求項14に記載の内視鏡。
- 前記映像処理回路は、前記関心領域信号に基づく関心領域映像信号を生成し、前記関心領域映像信号を前記ディスプレイに出力することを特徴とする請求項15に記載の内視鏡。
- 前記映像処理回路は、前記関心領域映像信号を表示する第1フレームと、前記全画像映像信号を表示する第2フレームと、を構成する複合映像信号を生成することを特徴とする請求項16に記載の内視鏡。
- 前記第2フレームは、前記全画像映像信号に対応する局所的な前記関心領域を示す証印を含むことを特徴とする請求項17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。
- 前記画像再分布伝送システムは、前記内視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20に記載の内視鏡。
- 少なくとも1つの前記レンズは、長手方向において前記内視鏡撮像領域のほぼ全体を再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21に記載の内視鏡。
- 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20に記載の内視鏡。
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US12/169,290 US8814782B2 (en) | 2008-07-08 | 2008-07-08 | Solid state variable direction of view endoscope |
US12/169,290 | 2008-07-08 |
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US8814782B2 (en) | 2014-08-26 |
EP2143374B1 (en) | 2013-07-03 |
JP5676712B2 (ja) | 2015-02-25 |
CA2671100A1 (en) | 2010-01-08 |
JP5368198B2 (ja) | 2013-12-18 |
US20100010301A1 (en) | 2010-01-14 |
EP2143374A1 (en) | 2010-01-13 |
CA2671100C (en) | 2014-05-27 |
JP2014030752A (ja) | 2014-02-20 |
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