JP4928969B2 - 内視鏡の湾曲保持機構 - Google Patents
内視鏡の湾曲保持機構 Download PDFInfo
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- JP4928969B2 JP4928969B2 JP2007028708A JP2007028708A JP4928969B2 JP 4928969 B2 JP4928969 B2 JP 4928969B2 JP 2007028708 A JP2007028708 A JP 2007028708A JP 2007028708 A JP2007028708 A JP 2007028708A JP 4928969 B2 JP4928969 B2 JP 4928969B2
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- bending
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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
- A61B1/005—Flexible endoscopes
- A61B1/0051—Flexible endoscopes with controlled bending of insertion part
- A61B1/0052—Constructional details of control elements, e.g. handles
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Biomedical Technology (AREA)
- Medical Informatics (AREA)
- Optics & Photonics (AREA)
- Pathology (AREA)
- Radiology & Medical Imaging (AREA)
- Biophysics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Instruments For Viewing The Inside Of Hollow Bodies (AREA)
- Endoscopes (AREA)
Description
図2は内視鏡の全体構成を示しており、可撓性の挿入部1の先端付近には遠隔操作により屈曲する湾曲部2が形成され、図示されていない観察窓等が配置された先端部本体3が湾曲部2の先端に連結されている。
2 湾曲部
4 操作部
5UD 上下方向用湾曲操作ノブ(湾曲操作機構)
6U 上方向用操作ワイヤ
6D 下方向用操作ワイヤ
7UD 上下方向用湾曲保持操作ノブ(湾曲保持操作手段)
9UD 上下方向用駆動プーリ(湾曲操作機構)
12 上下方向用回転駆動筒(湾曲操作機構)
30〜38 湾曲保持機構
30 不動台座
32 雄ネジ環
35 雌ネジ環
37 金属円盤(摩擦抵抗発生部材)
37a 圧接面
38 放射状板バネ(摩擦抵抗発生部材)
38a 環状部
38b 放射状突出爪
Claims (9)
- 湾曲部を遠隔操作により屈曲させるために操作部に回転自在に配置された湾曲操作機構を任意の回転位置で静止させるように、上記湾曲操作機構の回転動作に摩擦抵抗を付与することができるようにした内視鏡の湾曲保持機構において、
上記湾曲操作機構の回転動作に摩擦抵抗を付与するために相対的に回転動作をする摩擦抵抗発生部材が、環状部の周囲にそれと一体に複数の放射状突出爪が形成されたバネ性のある金属板材からなる放射状板バネと、上記放射状板バネの板面に対して斜め向きに圧接される圧接面を有する金属円盤とで構成されていることを特徴とする内視鏡の湾曲保持機構。 - 上記放射状板バネが上記湾曲操作機構と共に軸線周りに回転し、上記金属円盤は回転できない状態で上記操作部の固定部材に係合している請求項1記載の内視鏡の湾曲保持機構。
- 上記放射状板バネと上記金属円盤とが圧接する状態と分離する状態とを切り換え操作することができる湾曲保持操作手段が設けられている請求項1又は2記載の内視鏡の湾曲保持機構。
- 上記湾曲保持操作手段により、上記放射状突出爪と上記金属円盤との圧接量を可変することができる請求項3記載の内視鏡の湾曲保持機構。
- 上記湾曲保持操作手段により上記放射状板バネと上記金属円盤との圧接量が次第に大きくされるのに伴って上記放射状突出爪が弾性変形して、上記放射状板バネと上記金属円盤との圧接位置が上記放射状突出爪の最外周部分から次第に内周寄りの部分を含む状態に変化する請求項4記載の内視鏡の湾曲保持機構。
- 上記放射状板バネが全体として平面状に形成されていて、上記金属円盤側の圧接面が傘状の斜面に形成されている請求項1ないし5のいずれかの項に記載の内視鏡の湾曲保持機構。
- 上記放射状板バネが全体として傘状に形成されていて、上記金属円盤側の圧接面が平面状に形成されている請求項1ないし5のいずれかの項に記載の内視鏡の湾曲保持機構。
- 上記放射状板バネに形成された放射状突出爪の少なくとも上記金属円盤が圧接される稜線部分がアール面取りされている請求項1ないし7のいずれかの項に記載の内視鏡の湾曲保持機構。
- 上記湾曲保持機構が、上記湾曲操作機構の湾曲操作ノブ内の空間に配置されている請求項1ないし8のいずれかの項に記載の内視鏡の湾曲保持機構。
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007028708A JP4928969B2 (ja) | 2006-04-26 | 2007-02-08 | 内視鏡の湾曲保持機構 |
| US11/737,305 US7828725B2 (en) | 2006-04-26 | 2007-04-19 | Bent state holding mechanism of an endoscope |
| DE102007019781.2A DE102007019781B4 (de) | 2006-04-26 | 2007-04-26 | Biegezustands-Haltemechanismus eines Endoskops |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006121597 | 2006-04-26 | ||
| JP2006121597 | 2006-04-26 | ||
| JP2007028708A JP4928969B2 (ja) | 2006-04-26 | 2007-02-08 | 内視鏡の湾曲保持機構 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2007313292A JP2007313292A (ja) | 2007-12-06 |
| JP2007313292A5 JP2007313292A5 (ja) | 2009-04-02 |
| JP4928969B2 true JP4928969B2 (ja) | 2012-05-09 |
Family
ID=38622441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007028708A Active JP4928969B2 (ja) | 2006-04-26 | 2007-02-08 | 内視鏡の湾曲保持機構 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7828725B2 (ja) |
| JP (1) | JP4928969B2 (ja) |
| DE (1) | DE102007019781B4 (ja) |
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2007
- 2007-02-08 JP JP2007028708A patent/JP4928969B2/ja active Active
- 2007-04-19 US US11/737,305 patent/US7828725B2/en active Active
- 2007-04-26 DE DE102007019781.2A patent/DE102007019781B4/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007019781B4 (de) | 2022-02-24 |
| US20070255104A1 (en) | 2007-11-01 |
| DE102007019781A1 (de) | 2007-11-29 |
| US7828725B2 (en) | 2010-11-09 |
| JP2007313292A (ja) | 2007-12-06 |
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