JP5017549B2 - 内視鏡用高周波切開具 - Google Patents
内視鏡用高周波切開具 Download PDFInfo
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- JP5017549B2 JP5017549B2 JP2009240585A JP2009240585A JP5017549B2 JP 5017549 B2 JP5017549 B2 JP 5017549B2 JP 2009240585 A JP2009240585 A JP 2009240585A JP 2009240585 A JP2009240585 A JP 2009240585A JP 5017549 B2 JP5017549 B2 JP 5017549B2
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- electrode
- sheath
- frequency incision
- endoscope
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- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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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
-
- 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
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/2812—Surgical forceps with a single pivotal connection
- A61B17/282—Jaws
- A61B2017/2825—Inserts of different material in jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/28—Surgical forceps
- A61B17/29—Forceps for use in minimally invasive surgery
- A61B2017/2926—Details of heads or jaws
- A61B2017/2945—Curved jaws
-
- 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
- A61B2018/00053—Mechanical features of the instrument of device
- A61B2018/00059—Material properties
- A61B2018/00071—Electrical conductivity
- A61B2018/00083—Electrical conductivity low, i.e. electrically insulating
-
- 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
- A61B2018/1425—Needle
- A61B2018/1432—Needle curved
-
- 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
- A61B2018/146—Scissors
-
- 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
- A61B2018/1497—Electrodes covering only part of the probe circumference
Description
そこで、碗状に形成された生検鉗子カップ状の電極刃を用いればそのような恐れはなくなるが、そのような碗状の電極刃では、高周波切開処置の際に切開が行われる部分の一部がカップの陰になって内視鏡で直視できないので安全性が確保されない。
また、高周波電流を通電するのに先立って、表面粘膜と筋層との間を機械的に押し開く作業が必要となるが、薄板状の電極刃でそれを行っても電極刃が粘膜に食い込むだけで粘膜と筋層との間を思うように広げることができない場合がある。
図1は本発明の高周波切開具10が内視鏡1の処置具案内管路2に通されて、高周波切開具10の先端部分が処置具案内管路2から患者の体腔内に突出した状態を示している。その様子は内視鏡1の照明窓3から放射される照明光により照明されて、観察窓4を通して内視鏡観察される。
シース11は、例えばステンレス鋼線を密着巻きして形成されていて、自由に屈曲させることができる。ただし、シース11を可撓性チューブ等で形成してもよい。先端支持部材13はステンレス鋼材又はセラミックス材又は耐熱性の高いプラスチック材(PEEKなど)等により形成されていて、その先寄りの部分はスリット18で分断された形状になっている。回転支持軸15は、そのようなスリット18を横断する状態に先端支持部材13に固定されている。
また、図1に示されるように、粘膜6をその下の筋層から剥がし取る粘膜剥離等を行う際には、まず電極刃14A,14Bを粘膜6と筋層との間に差し込んで開く操作を行うことで、塊状の絶縁被覆16により粘膜6と筋層との間を安全かつ確実に機械的に押し広げることができ、次いで、高周波処置により粘膜6と筋層との間の筋(又は血管等)7を切開(又は凝固)するために電極刃14A,14Bに高周波電流を流すと、粘膜6や下方の筋層が絶縁被覆16で押し退けられて電極刃14A,14Bに触れないので、粘膜6や筋層を火傷させることなく筋(又は血管等)7を切開(又は凝固)することができる。そして、そのような電極刃14A,14Bによる切開部を内視鏡1の観察窓4を通して直視することができ、必要に応じてシース11を軸周りに回転させて電極刃14A,14Bの向きを変え、電極刃14A,14Bを内視鏡観察しやすい状態にすることができる。
2…処置具案内管路
10…高周波切開具
11…シース
12…外套管
13…先端支持部材
14A,14B…電極刃
15…回転支持軸
16…絶縁被覆(電気絶縁部材)
17…操作ワイヤー
19…面状部
Claims (1)
- 内視鏡の処置具案内管路に挿脱されるシースと、前記シースの後端側に連結された操作部と、前記シースの先端位置に前方に向かって並列に並んで配置されて前記操作部からの遠隔操作により前方に向かって開閉するように動作する一対の電極刃とが設けられた内視鏡用高周波切開具において、
前記電極刃の少なくとも一方の最先端部分に、前方から見たときの投影面積が前記電極刃の先端付近の断面積より広い面積の面状部が設けられ、
前記一対の電極刃が各々、碗状に形成された生検鉗子カップを軸中心から側半部を切除して碗の半分ずつがあい対向した形状に形成されることを特徴とする内視鏡用高周波切開具。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009240585A JP5017549B2 (ja) | 2005-05-20 | 2009-10-19 | 内視鏡用高周波切開具 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005176933 | 2005-05-20 | ||
JP2005176933 | 2005-05-20 | ||
JP2009240585A JP5017549B2 (ja) | 2005-05-20 | 2009-10-19 | 内視鏡用高周波切開具 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005259871A Division JP4461206B2 (ja) | 2005-05-20 | 2005-08-11 | 内視鏡用高周波切開具 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010017574A JP2010017574A (ja) | 2010-01-28 |
JP5017549B2 true JP5017549B2 (ja) | 2012-09-05 |
Family
ID=37449279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009240585A Expired - Fee Related JP5017549B2 (ja) | 2005-05-20 | 2009-10-19 | 内視鏡用高周波切開具 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7972333B2 (ja) |
JP (1) | JP5017549B2 (ja) |
DE (1) | DE102006023696B4 (ja) |
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US8568410B2 (en) | 2007-08-31 | 2013-10-29 | Ethicon Endo-Surgery, Inc. | Electrical ablation surgical instruments |
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US8262655B2 (en) | 2007-11-21 | 2012-09-11 | Ethicon Endo-Surgery, Inc. | Bipolar forceps |
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JP4109092B2 (ja) | 2002-11-21 | 2008-06-25 | オリンパス株式会社 | 高周波ナイフ |
US7182775B2 (en) * | 2003-02-27 | 2007-02-27 | Microline Pentax, Inc. | Super atraumatic grasper apparatus |
JP4131014B2 (ja) * | 2003-03-18 | 2008-08-13 | Hoya株式会社 | 内視鏡用嘴状処置具 |
JP2004350938A (ja) | 2003-05-29 | 2004-12-16 | Olympus Corp | 内視鏡用鉗子 |
JP4253540B2 (ja) * | 2003-07-24 | 2009-04-15 | オリンパス株式会社 | 医療器械 |
-
2006
- 2006-05-19 DE DE102006023696.3A patent/DE102006023696B4/de not_active Expired - Fee Related
- 2006-05-19 US US11/436,511 patent/US7972333B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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US7972333B2 (en) | 2011-07-05 |
DE102006023696A1 (de) | 2006-12-14 |
JP2010017574A (ja) | 2010-01-28 |
US20060264930A1 (en) | 2006-11-23 |
DE102006023696B4 (de) | 2019-10-17 |
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