JP4441496B2 - 内視鏡用バイポーラ型高周波処置具 - Google Patents
内視鏡用バイポーラ型高周波処置具 Download PDFInfo
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- JP4441496B2 JP4441496B2 JP2006041905A JP2006041905A JP4441496B2 JP 4441496 B2 JP4441496 B2 JP 4441496B2 JP 2006041905 A JP2006041905 A JP 2006041905A JP 2006041905 A JP2006041905 A JP 2006041905A JP 4441496 B2 JP4441496 B2 JP 4441496B2
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B18/1442—Probes having pivoting end effectors, e.g. forceps
- A61B18/1445—Probes having pivoting end effectors, e.g. forceps at the distal end of a shaft, e.g. forceps or scissors at the end of a rigid rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2927—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft
- A61B2017/2929—Details of heads or jaws the angular position of the head being adjustable with respect to the shaft with a head rotatable about the longitudinal axis of the shaft
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1405—Electrodes having a specific shape
- A61B2018/1407—Loop
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
- A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
- A61B18/14—Probes or electrodes therefor
- A61B2018/1475—Electrodes retractable in or deployable from a housing
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Medical Informatics (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Description
図4は、本発明の第1の実施例の内視鏡用バイポーラ型高周波処置具を示しており、電気絶縁性の可撓性シース1の最先端部分に取り付けられた電極支持枠体4に、導電性の一対の高周波電極2が前方に向かって開閉自在に支持されている。可撓性シース1内には、導電性の二本の操作ワイヤ3が並列に挿通配置されていて、各操作ワイヤ3の先端が高周波電極2に個別に接続されている。
2 高周波電極
3 操作ワイヤ
3b 芯線
3c 電気絶縁被覆
4 電極支持枠体
7 電気絶縁被覆
8 マルチルーメンチューブ
8a ガイド孔
10 操作部
11 操作部本体
12 回転環
Claims (6)
- 一対の高周波電極が互いの間が電気絶縁された状態で可撓性シースの先端に可動に配置され、上記一対の高周波電極を動作させるための一対の操作ワイヤが、上記各高周波電極に高周波電流を通電するように導電材により形成されて互いの間が電気的に導通しない状態で上記可撓性シース内に軸線方向に進退自在に全長にわたって挿通配置された内視鏡用バイポーラ型高周波処置具において、
上記可撓性シースの基端にその軸線周りに回転自在に操作部が連結されると共に、一対のガイド孔が軸線方向に貫通して形成されたマルチルーメンチューブが、上記可撓性シースに対しその軸線周りに回転自在に上記可撓性シース内に略全長にわたり挿通配置され、その一対のガイド孔内に上記一対の操作ワイヤが軸線方向に進退自在に別々に挿通配置されて、上記マルチルーメンチューブの基端から引き出された上記一対の操作ワイヤの基端部分が上記操作部側の部材に固定され、
上記可撓性シースの基端部分に対してその軸線周りに上記操作部を回転させることにより、上記一対の操作ワイヤの基端部分が上記操作部と共に上記可撓性シースに対し回転して、上記マルチルーメンチューブと上記操作ワイヤとが上記可撓性シース内において上記可撓性シースの軸線周りに一緒に回転し、上記可撓性シースの先端においてその軸線周りに上記一対の高周波電極が回転することを特徴とする内視鏡用バイポーラ型高周波処置具。 - 上記マルチルーメンチューブの基端から並んで引き出された上記一対の操作ワイヤの基端部分の各々に補強パイプが被覆されている請求項1記載の内視鏡用バイポーラ型高周波処置具。
- 上記マルチルーメンチューブの先端から上記一対の高周波電極に向かって延出する上記一対の操作ワイヤの少なくとも一方に電気絶縁被覆が施されている請求項1又は2記載の内視鏡用バイポーラ型高周波処置具。
- 上記操作ワイヤとして、複数の素線が一本の芯線の周りに撚り合わされて形成された撚り線が用いられ、上記電気絶縁被覆が施された部分では、上記操作ワイヤから上記芯線以外の素線が切除され、それによって残された芯線に上記電気絶縁被覆が施されている請求項3記載の内視鏡用バイポーラ型高周波処置具。
- 上記一対の高周波電極を支持する電極支持枠体が上記可撓性シースの先端部分に軸線周りに回転自在に取り付けられていて、その電極支持枠体が上記一対の高周波電極と共に回転する請求項1ないし4のいずれかの項に記載の内視鏡用バイポーラ型高周波処置具。
- 上記一対の高周波電極が上記可撓性シースの先端に突没自在に配置されていて、上記マルチルーメンチューブは上記高周波電極が上記可撓性シース内に引き込まれる長さの分だけ上記可撓性シースより短く形成されている請求項1ないし4のいずれかの項に記載の内視鏡用バイポーラ型高周波処置具。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006041905A JP4441496B2 (ja) | 2006-02-20 | 2006-02-20 | 内視鏡用バイポーラ型高周波処置具 |
US11/675,754 US8480670B2 (en) | 2006-02-20 | 2007-02-16 | Bipolar high-frequency treatment tool for endoscope |
DE102007008272.1A DE102007008272B4 (de) | 2006-02-20 | 2007-02-20 | Bipolares Hochfrequenz-Behandlungsinstrument für ein Endoskop |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006041905A JP4441496B2 (ja) | 2006-02-20 | 2006-02-20 | 内視鏡用バイポーラ型高周波処置具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007215896A JP2007215896A (ja) | 2007-08-30 |
JP4441496B2 true JP4441496B2 (ja) | 2010-03-31 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2006041905A Active JP4441496B2 (ja) | 2006-02-20 | 2006-02-20 | 内視鏡用バイポーラ型高周波処置具 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8480670B2 (ja) |
JP (1) | JP4441496B2 (ja) |
DE (1) | DE102007008272B4 (ja) |
Families Citing this family (147)
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