JP2021048953A - 内視鏡、蛍光測定装置およびレンズ保持筒状体 - Google Patents
内視鏡、蛍光測定装置およびレンズ保持筒状体 Download PDFInfo
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Abstract
Description
図1は、第一の実施形態にかかる蛍光測定装置1の構成と、励起光および可視光の光路を示す図である。図2は、第一の実施形態にかかる蛍光測定装置1の構成と、蛍光および反射光の光路を示す図である。
第二の実施形態にかかる蛍光測定装置1は、第一偏光子PBS1、第二偏光子PBS2および偏波保持ファイバ22f、22gを備える点が、シングルモードファイバ22c、22dを備える第一の実施形態にかかる蛍光測定装置1と異なる。
第三の実施形態にかかる蛍光測定装置1は、励起光源220がファイバレーザ222、PPLN(波長変換素子)224を有する点が、第二の実施形態にかかる蛍光測定装置1と異なる。
第四の実施形態にかかる蛍光測定装置1は、偏波コントローラ22j、22kを備えるものの、偏波保持ファイバ22f、22gを備えない点が、第二の実施形態にかかる蛍光測定装置1と異なる。
第五の実施形態にかかる蛍光測定装置1は、赤外光源6を備え、対物レンズL1がコーティングTF1を有する点が、第一の実施形態にかかる蛍光測定装置1と異なる。
4 分光器(蛍光測定部)
6 赤外光源
SLN センチネルリンパ節(照射対象)
L 筒状体244の長さ
2 内視鏡
22 光源部
22a 励起光源
22b 可視光源
22c、22d シングルモードファイバ
22e WDMカプラ(合波器)
22e1 偏波保持WDMカプラ(合波器)
22f、22g 偏波保持ファイバ
22h シングルモードファイバ(励起光伝送用光ファイバ)
22i シングルモードファイバ
22j、22k 偏波コントローラ
22m 光ファイバ
22m1 偏波保持ファイバ
220 励起光源
222 ファイバレーザ
224 PPLN(波長変換素子)
246 蛍光伝送用光ファイバ
248 赤外光伝送用光ファイバ
24 スコープ部
242 接続器
242a、242b、242c、242e 開口
242d 接続用端部
244 筒状体
246 蛍光伝送用光ファイバ
L1 対物レンズ
L2 蛍光伝送用レンズ
L3 コリメート用レンズ(コリメート部)
L4 コリメート用レンズ
M1、M2 ダイクロイックミラー
F1 バンドパスフィルタ
PBS1 第一偏光子
PBS2 第二偏光子
Claims (16)
- 励起光を発生する励起光源と、
照射対象が前記励起光を受けることにより生じる蛍光を受ける対物レンズと、
前記対物レンズを保持する筒状体と、
を備え、
前記対物レンズは、前記筒状体の内部の、前記筒状体の中央部分に配置されている、
内視鏡。 - 請求項1に記載の内視鏡であって、
前記励起光をコリメートするコリメート部を備えた内視鏡。 - 請求項1に記載の内視鏡であって、
前記筒状体の長さをLとしたとき、
前記中央部分が、前記筒状体の前記照射対象側の端部からL/3以上2L/3以下の領域である内視鏡。 - 請求項1に記載の内視鏡であって、
可視光を発生する可視光源と、
前記可視光と前記励起光とを合波する合波器と、
を備えた内視鏡。 - 請求項2に記載の内視鏡であって、
前記コリメート部がレンズであり、
前記コリメート部を透過した前記励起光の進行方向を前記照射対象に向かう方向へと変更するミラーを備えた内視鏡。 - 請求項1に記載の内視鏡であって、
前記励起光を透過させる第一偏光子と、
前記蛍光を透過させる第二偏光子と、
を備え、
前記第一偏光子の透過軸と、前記第二偏光子の透過軸とが直交する内視鏡。 - 請求項6に記載の内視鏡であって、
前記励起光を受け、前記第一偏光子に与える偏波保持ファイバを備え、
前記偏波保持ファイバのスロー軸またはファスト軸と、前記第一偏光子の透過軸とが一致する内視鏡。 - 請求項7に記載の内視鏡であって、
前記励起光源がファイバレーザを有する内視鏡。 - 請求項8に記載の内視鏡であって、
前記励起光源が、さらに、前記ファイバレーザの波長を変換する波長変換素子を有する内視鏡。 - 請求項6に記載の内視鏡であって、
前記励起光を伝送するシングルモードファイバである励起光伝送用光ファイバと、
前記励起光伝送用光ファイバにより伝送された前記励起光を受け、前記励起光の偏光面の法線の方向を前記第一偏光子の透過軸に直交させて、前記第一偏光子に与える偏波コントローラと、
を備えた内視鏡。 - 請求項1に記載の内視鏡であって、
赤外光を発生する赤外光源を備え、
前記対物レンズが前記赤外光を吸収する内視鏡。 - 請求項11に記載の内視鏡であって、
前記対物レンズの前記照射対象側の面に、前記赤外光を反射し、前記励起光および前記蛍光を透過するコーティングを備えた内視鏡。 - 請求項1に記載の内視鏡であって、
前記対物レンズを透過した前記蛍光を伝送する蛍光伝送用光ファイバと、
前記対物レンズを透過した前記蛍光を受け、前記蛍光伝送用光ファイバの一端に与える蛍光伝送用レンズと、
を備えた内視鏡。 - 請求項1に記載の内視鏡であって、
前記筒状体の内部に配置されたレンズは、前記対物レンズの1枚のみである内視鏡。 - 請求項1ないし14のいずれか一項に記載の内視鏡と、
前記対物レンズを透過した前記蛍光を測定する蛍光測定部と、
を備えた蛍光測定装置。 - 照射対象が励起光を受けることにより生じる蛍光を受ける対物レンズと、
前記対物レンズを保持する筒状体と、
を備え、
前記対物レンズは、前記筒状体の内部の、前記筒状体の中央部分に配置されている、
レンズ保持筒状体。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019172575A JP7198184B2 (ja) | 2019-09-24 | 2019-09-24 | 内視鏡、蛍光測定装置およびレンズ保持筒状体 |
TW109116591A TW202128073A (zh) | 2019-09-24 | 2020-05-19 | 內視鏡、螢光測定裝置及透鏡保持筒狀體 |
DE112020003560.3T DE112020003560T5 (de) | 2019-09-24 | 2020-06-10 | Endoskop, fluorophotometrische apparatur und linsenhaltender röhrenförmiger körper |
CN202080061132.9A CN114303054A (zh) | 2019-09-24 | 2020-06-10 | 内窥镜、荧光测定装置及透镜保持筒状体 |
KR1020227004360A KR20220031688A (ko) | 2019-09-24 | 2020-06-10 | 내시경, 형광 측정 장치 및 렌즈 유지 통형상체 |
PCT/JP2020/022800 WO2021059611A1 (ja) | 2019-09-24 | 2020-06-10 | 内視鏡、蛍光測定装置およびレンズ保持筒状体 |
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- 2020-06-10 CN CN202080061132.9A patent/CN114303054A/zh active Pending
- 2020-06-10 WO PCT/JP2020/022800 patent/WO2021059611A1/ja active Application Filing
- 2020-06-10 DE DE112020003560.3T patent/DE112020003560T5/de active Pending
- 2020-06-10 KR KR1020227004360A patent/KR20220031688A/ko not_active Application Discontinuation
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CN114303054A (zh) | 2022-04-08 |
DE112020003560T5 (de) | 2022-05-05 |
TW202128073A (zh) | 2021-08-01 |
JP7198184B2 (ja) | 2022-12-28 |
KR20220031688A (ko) | 2022-03-11 |
WO2021059611A1 (ja) | 2021-04-01 |
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