JP6088239B2 - 光走査型内視鏡 - Google Patents
光走査型内視鏡 Download PDFInfo
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- JP6088239B2 JP6088239B2 JP2012278145A JP2012278145A JP6088239B2 JP 6088239 B2 JP6088239 B2 JP 6088239B2 JP 2012278145 A JP2012278145 A JP 2012278145A JP 2012278145 A JP2012278145 A JP 2012278145A JP 6088239 B2 JP6088239 B2 JP 6088239B2
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- KHYBPSFKEHXSLX-UHFFFAOYSA-N iminotitanium Chemical compound [Ti]=N KHYBPSFKEHXSLX-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- 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
- A61B1/00172—Optical arrangements with means for scanning
-
- 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
- A61B1/12—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 cooling or rinsing arrangements
- A61B1/128—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 cooling or rinsing arrangements provided with means for regulating temperature
-
- 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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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Surgery (AREA)
- Optics & Photonics (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Heart & Thoracic Surgery (AREA)
- Pathology (AREA)
- Medical Informatics (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Description
100 プロセッサ
102,202 CPU
104,204 メインメモリ
106 光源
108 光検出器
110a,110b,110c,211 SMF
112 映像信号処理回路
200 共焦点プローブ(光走査型内視鏡)
206 走査制御回路
212a〜d ワイヤ(被覆電線)
220 共焦点走査光学ユニット(光走査ユニット)
221 ハウジング
222 マウント部材
223 XY軸アクチュエータ
224 対物光学系
225 サーミスタ
226 ヒータ
227 Z軸アクチュエータ
228 Z軸変位センサ
230 温度調節回路
300 モニタ
Claims (6)
- 光源からの光を光ファイバによって導光し、該光ファイバの出射端から出射される光を被写体上で周期的に走査させる光走査ユニットと、前記光走査ユニットの動作を制御する制御回路を有する制御ボックスと、前記光走査ユニットと前記制御ボックスとを接続する可撓性ケーブルと、を備えた光走査型内視鏡であって、
前記光ファイバは、前記可撓性ケーブル内に挿通されており、
前記光走査ユニットは、
前記光ファイバの出射端近傍部分を前記光源側で片持ち支持し、前記光ファイバの円筒面を前記光ファイバの長手方向に直交する方向から押圧することにより前記光ファイバを屈曲させ、前記光ファイバから出射する光を走査させるアクチュエータと、
前記可撓性ケーブル内に挿通され、前記制御回路と接続される1対の第1ワイヤを有し、該1対の第1ワイヤを直列に流れる電流によって該アクチュエータ近傍の閉鎖空間を加熱するヒータと、
を備え、
前記制御回路は、
前記1対の第1ワイヤの一方をグラウンドに接続するグラウンド端子と、
前記1対の第1ワイヤの他方と接続され、前記グラウンド端子から前記1対の第1ワイヤを介して電流を吸い込む電流ドライバと、
前記1対の第1ワイヤの他方と前記電流ドライバとの間に直列に挿入されており、温度の上昇に伴って抵抗値が増大する性質を有し、前記1対の第1ワイヤに流れる電流を制限する抵抗体と、
を備える、
光走査型内視鏡。 - 前記光走査ユニットは、
前記可撓性ケーブル内に挿通され、前記制御回路と接続される1対の第2ワイヤを有し、該1対の第2ワイヤを直列に流れる電流によって前記閉鎖空間の温度を検出する温度センサを備え、
前記制御回路は、
前記温度センサが検出した温度に応じて前記電流ドライバが吸い込む電流を制御し、前記閉鎖空間の温度を所定の温度に調節する温度調節回路を備える、
請求項1に記載の光走査型内視鏡。 - 前記抵抗体が、固定抵抗、ヒューズ又はPTCサーミスタのいずれかである、
請求項1又は請求項2に記載の光走査型内視鏡。 - 前記温度センサがサーミスタである、
請求項1から請求項3のいずれか一項に記載の光走査型内視鏡。 - 前記温度調節回路が、前記温度センサに定電圧を供給する低ドロップアウトレギュレータを備える、
請求項1から請求項4のいずれか一項に記載の光走査型内視鏡。 - 前記第1ワイヤの被覆厚が50μm以下である、
請求項1から請求項5のいずれか一項に記載の光走査型内視鏡。
Priority Applications (1)
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JP2012278145A JP6088239B2 (ja) | 2012-12-20 | 2012-12-20 | 光走査型内視鏡 |
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JP2012278145A JP6088239B2 (ja) | 2012-12-20 | 2012-12-20 | 光走査型内視鏡 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014121366A JP2014121366A (ja) | 2014-07-03 |
JP6088239B2 true JP6088239B2 (ja) | 2017-03-01 |
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JP2012278145A Active JP6088239B2 (ja) | 2012-12-20 | 2012-12-20 | 光走査型内視鏡 |
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JP (1) | JP6088239B2 (ja) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3718135B2 (ja) * | 2001-04-09 | 2005-11-16 | 富士通アクセス株式会社 | 電流ドライバ出力保護回路 |
JP2011004920A (ja) * | 2009-06-25 | 2011-01-13 | Hoya Corp | 内視鏡装置 |
GB2503839B (en) * | 2009-07-28 | 2014-03-05 | Skyworks Solutions Inc | Process, voltage, and temperature sensor |
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2012
- 2012-12-20 JP JP2012278145A patent/JP6088239B2/ja active Active
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JP2014121366A (ja) | 2014-07-03 |
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