JP6467746B1 - 内視鏡システムおよび内視鏡システムの作動方法 - Google Patents
内視鏡システムおよび内視鏡システムの作動方法 Download PDFInfo
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Abstract
Description
以下の実施の形態1に係る内視鏡システムでは、光源は、被写体に対して、非可視光帯域の第1所定範囲(例えば、380nm〜420nm)の波長を有する第1励起光(例えば、Violet光)と、非可視光帯域の第2所定範囲(例えば、690nm〜810nm)の波長を有する第2励起光(例えば、IR光)とを出射する。光学フィルタは、第1所定範囲および第2所定範囲の波長のそれぞれを有する光(つまり、第1励起光および第2励起光)を遮断する。センサ部は、光学フィルタの出射側に配置され、第1励起光および第2励起光のそれぞれにより励起されて蛍光発光した被写体の撮像画像を生成する。第1励起光に基づく蛍光、および第2励起光に基づく蛍光のそれぞれの波長域は対応する励起光の波長より長波長側にシフトし、光学フィルタにより遮断されない。出力部は、被写体の撮像画像をモニタに出力する。
図1は、実施の形態1に係る内視鏡システム5の外観例を示す斜視図である。以下の説明において、「上」、「下」、「前」、「後」は、図1に示すそれぞれの方向に従う。例えば、水平面に置かれたビデオプロセッサ30の上方向,下方向をそれぞれ「上」,「下」と称し、内視鏡10が観察対象を撮像する側を「前」と称し、内視鏡10がビデオプロセッサ30に接続される側を「後」と称する。
図8は、実施の形態1に係る内視鏡システム5の動作概要例を示す説明図である。
次に、実施の形態1に係る内視鏡システム5の動作について、図11を参照して説明する。図11は、実施の形態1に係る内視鏡システム5の動作手順の一例を詳細に説明するフローチャートである。図11では、例えば可視光が最初に照射され、その後に励起光が照射される例を説明しているが、この例に限定されることはなく、可視光、IR励起光およびViolet励起光のうちどの光が照射されるかは医者等の操作または音声に基づく切替信号に依存して決定されてよい。
10 内視鏡
11 軟性部
12 硬性部
13 スコープ
16 プラグ部
21 第1駆動回路
22 イメージセンサ
23 励起光カットフィルタ
24 光学系
25A、25B、25C レーザダイオード
27A,27B,27C 光ファイバ
29 放熱筐体
30 ビデオプロセッサ
31 コントローラ
32 第2駆動回路
33 光源ユニット
34 可視光源
35 イメージプロセッサ
36 ディスプレイプロセッサ
40 モニタ
331 可視光光源ユニット
332 第1励起光光源ユニット
333 第2励起光光源ユニット
Claims (10)
- 被写体に対して、紫外領域を含む第1所定範囲の波長を有する第1励起光と、赤外領域を含む第2所定範囲の波長を有する第2励起光とを出射する光源と、
前記第1所定範囲および前記第2所定範囲の波長のそれぞれを有する光を遮断する光学フィルタと、
前記光学フィルタの出射側に配置され、前記第1励起光および第2励起光のそれぞれにより励起されて蛍光発光した前記被写体の撮像画像を生成するセンサ部と、
前記被写体の撮像画像をモニタに出力する出力部と、を備え、
前記光源は、可視光をさらに出射し、
前記光源は、前記第1励起光と前記第2励起光と前記可視光とを同時に出射し、
前記センサ部は、さらに前記光学フィルタを通過した波長帯域の可視光に基づいて、前記被写体の撮像画像を生成する、
内視鏡システム。 - 前記第1所定範囲は、380nm〜420nmであり、
前記第2所定範囲は、690nm〜820nmである、
請求項1に記載の内視鏡システム。 - 前記光学フィルタは、690nm〜820nmの波長において透過率が0.1%以下となる特性を有する、
請求項2に記載の内視鏡システム。 - 前記光源は、狭帯域のLEDまたはレーザダイオードを用いて構成される、
請求項1に記載の内視鏡システム。 - 前記光学フィルタは、前記被写体に予め投与された5−アミノレブリン酸の前記第1励起光に基づく蛍光を入射する、
請求項1に記載の内視鏡システム。 - 前記光学フィルタは、前記被写体に予め投与されたインドシアニングリーンの前記第2励起光に基づく蛍光を入射する、
請求項5に記載の内視鏡システム。 - 前記センサ部は、内視鏡の先端部に配置された、
請求項1に記載の内視鏡システム。 - 前記センサ部に含まれるイメージセンサの対角の径は10mm以下である、
請求項7に記載の内視鏡システム。 - 前記光源は、切替信号に応じて、前記第1励起光、前記第2励起光および前記可視光のうちいずれかを選択的に切り替えて出射する、
請求項1に記載の内視鏡システム。 - 内視鏡システムの作動方法であって、
光源が、紫外領域を含む第1所定範囲の波長を有する第1励起光と、赤外領域を含む第2所定範囲の波長を有する第2励起光と、可視光とを同時に出射するステップと、
光学フィルタにより、前記第1所定範囲および前記第2所定範囲の波長のそれぞれを有する光を遮断するステップと、
前記光学フィルタの出射側に配置されたセンサ部が、前記第1励起光により励起されて蛍光発光した被写体の撮像画像と前記第2励起光により励起されて蛍光発光した前記被写体の撮像画像と前記光学フィルタを通過した波長帯域の可視光に基づく前記被写体の撮像画像とを生成するステップと、
モニタが、前記被写体の撮像画像を出力するステップと、を有する、
内視鏡システムの作動方法。
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JP2018081437A JP6467746B1 (ja) | 2018-04-20 | 2018-04-20 | 内視鏡システムおよび内視鏡システムの作動方法 |
DE112019002059.5T DE112019002059T5 (de) | 2018-04-20 | 2019-02-12 | Endoskopsystem und Fluoreszenzbildausgabeverfahren |
US16/978,522 US20200397263A1 (en) | 2018-04-20 | 2019-02-12 | Endoscope system and fluorescence image output method |
PCT/JP2019/004906 WO2019202828A1 (ja) | 2018-04-20 | 2019-02-12 | 内視鏡システムおよび蛍光画像出力方法 |
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JP2020130193A (ja) * | 2019-02-12 | 2020-08-31 | パナソニックi−PROセンシングソリューションズ株式会社 | 内視鏡システムおよび蛍光画像出力方法 |
CN113324935A (zh) * | 2021-06-03 | 2021-08-31 | 武汉致腾科技有限公司 | 一种基于多光谱的公路团雾检测装置及其检测方法 |
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US10841504B1 (en) | 2019-06-20 | 2020-11-17 | Ethicon Llc | Fluorescence imaging with minimal area monolithic image sensor |
US11432706B2 (en) | 2019-06-20 | 2022-09-06 | Cilag Gmbh International | Hyperspectral imaging with minimal area monolithic image sensor |
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