JP4246668B2 - 内視鏡用高周波処置具 - Google Patents
内視鏡用高周波処置具 Download PDFInfo
- Publication number
- JP4246668B2 JP4246668B2 JP2004151269A JP2004151269A JP4246668B2 JP 4246668 B2 JP4246668 B2 JP 4246668B2 JP 2004151269 A JP2004151269 A JP 2004151269A JP 2004151269 A JP2004151269 A JP 2004151269A JP 4246668 B2 JP4246668 B2 JP 4246668B2
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- JP
- Japan
- Prior art keywords
- frequency
- frequency electrode
- tip
- treatment instrument
- mucous membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- A61B18/148—Probes or electrodes therefor having a short, rigid shaft for accessing the inner body transcutaneously, e.g. for neurosurgery or arthroscopy
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- Surgical Instruments (AREA)
- Endoscopes (AREA)
Description
図1は内視鏡用高周波切開具の先端部分を示しており、例えば四フッ化エチレン樹脂チューブ等のような電気絶縁性のある可撓性チューブからなる可撓性シース1内に、導電性のある操作ワイヤ4が軸線方向に進退自在に全長にわたって挿通配置されている。
この凸凹状部30は、例えば先端が角張った90°程度の角度の所謂ギザギザ状に形成されており、生体粘膜に接触したときに滑り止めとして作用する。なお、この実施例においては高周波電極2の幅広部3の一方の側縁部にだけ凸凹状部30が形成されているが、反対側の側縁部の斜め後方向きの部分にも、同様に凸凹状部30を形成してもよい。
2 高周波電極
3 幅広部(先寄りの部分)
4 操作ワイヤ
30 凸凹状部
100 粘膜
Claims (2)
- 電気絶縁性の可撓性シース内に軸線方向に進退自在に挿通配置された導電性の操作ワイヤの先端に高周波電極が連結され、上記操作ワイヤの進退によって上記高周波電極が上記可撓性シースの先端から突没するように構成された内視鏡用高周波処置具において、
上記高周波電極を先端近傍部分が幅広なしゃもじ状のへら状に形成して、その幅広部の側縁部の斜め後向きの部分のみに、粘膜に接触したときの滑り止めとなる凸凹状部を形成したことを特徴とする内視鏡用高周波処置具。 - 上記凸凹状部の先端部分が角張っている請求項1記載の内視鏡用高周波処置具。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004151269A JP4246668B2 (ja) | 2004-05-21 | 2004-05-21 | 内視鏡用高周波処置具 |
US11/085,512 US7766908B2 (en) | 2004-03-31 | 2005-03-22 | High-frequency treating instrument for endoscope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004151269A JP4246668B2 (ja) | 2004-05-21 | 2004-05-21 | 内視鏡用高周波処置具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005329095A JP2005329095A (ja) | 2005-12-02 |
JP4246668B2 true JP4246668B2 (ja) | 2009-04-02 |
Family
ID=35484117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004151269A Expired - Fee Related JP4246668B2 (ja) | 2004-03-31 | 2004-05-21 | 内視鏡用高周波処置具 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4246668B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5415727B2 (ja) | 2008-08-13 | 2014-02-12 | オリンパスメディカルシステムズ株式会社 | 内視鏡用処置具 |
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2004
- 2004-05-21 JP JP2004151269A patent/JP4246668B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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JP2005329095A (ja) | 2005-12-02 |
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