JP4683840B2 - 電圧閾値切除方法及び装置 - Google Patents
電圧閾値切除方法及び装置 Download PDFInfo
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- JP4683840B2 JP4683840B2 JP2003524459A JP2003524459A JP4683840B2 JP 4683840 B2 JP4683840 B2 JP 4683840B2 JP 2003524459 A JP2003524459 A JP 2003524459A JP 2003524459 A JP2003524459 A JP 2003524459A JP 4683840 B2 JP4683840 B2 JP 4683840B2
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- electrode
- voltage
- ablation
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- argon
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- Expired - Fee Related
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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
-
- 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
- A61B18/042—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating using additional gas becoming plasma
-
- 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
- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
- A61B2018/00577—Ablation
- A61B2018/00583—Coblation, i.e. ablation using a cold plasma
-
- 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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00666—Sensing and controlling the application of energy using a threshold value
-
- 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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00892—Voltage
-
- 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
- A61B18/1206—Generators therefor
- A61B2018/1213—Generators therefor creating an arc
-
- 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
- A61B2018/143—Needle multiple needles
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biomedical Technology (AREA)
- Otolaryngology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Plasma & Fusion (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
Description
Claims (10)
- 急峻な立ち上がりと急峻な立下りとを有する出力波形からなる出力を発生するRF発生装置と使用され、標的組織を治療するための電気外科システムであって、
絶縁材から形成されるハウジングの遠端部に設けられ、ガスが充填される密封タンクと、
前記密封タンク内に配設され、前記ハウジング内を貫通して延出する導線を介して前記RF発生装置に接続される内部電極と、
前記遠端部に備えられ、標的組織に接触する切除用電極と、
前記ガスがプラズマ化する閾値電圧に達した時に、前記内部電極と前記切除用電極とを導通させて前記切除用電極に通電する電圧閾値スイッチと、
を備える電気外科システム。 - 前記電圧閾値スイッチが、前記出力の周期に応じて制御される請求項1に記載の電気外科システム。
- 前記絶縁材が、セラミック、ガラス、PFTE、ポリイミドのうちの少なくとも一つを含む材料からなる請求項1に記載の電気外科システム。
- 前記ハウジング内に前記内部電極に沿って設けられ、当該内部電極と前記切除用電極との間に少なくとも1種類のガスを導入する導入路を有する請求項1に記載の電気外科システム。
- 前記電圧閾値スイッチは、前記内部電極と、前記切除用電極と、前記内部電極と前記切除用電極との間に形成されるガスリザーバと、からなるスパーク・ギャップスイッチである請求項1に記載の電気外科システム。
- 前記ガスリザーバ内のイオン化ガス分子の排出に応じて、前記切除用電極への通電が停止される請求項5に記載の電気外科システム。
- 前記RF発生装置の出力に基づいて、前記ガスリザーバ内の電界が周期的に変化させられる請求項5に記載の電気外科システム。
- 前記出力の立下り時に、前記電圧閾値スイッチに流れる電流を決定する電流導通手段を有する請求項1に記載の電気外科システム。
- 前記電流導通手段は、前記中間電極と前記切除用電極との間に設けられ、前記ガスリザーバ内の電界を正弦周期で周期的に変化させる請求項8に記載の電気外科システム。
- 前記電流導通手段は、前記ガスリザーバ内のイオン化ガス分子が連続して排出すると共に、前記ガスリザーバに接続されたガス源から前記ガスを供給する請求項9に記載の電気外科システム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/631,040 US6413256B1 (en) | 2000-08-01 | 2000-08-01 | Voltage threshold ablation method and apparatus |
PCT/US2001/025409 WO2003020145A1 (en) | 2000-08-01 | 2001-08-14 | Voltage threshold ablation method and apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2005501597A JP2005501597A (ja) | 2005-01-20 |
JP2005501597A5 JP2005501597A5 (ja) | 2008-09-25 |
JP4683840B2 true JP4683840B2 (ja) | 2011-05-18 |
Family
ID=26680554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2003524459A Expired - Fee Related JP4683840B2 (ja) | 2000-08-01 | 2001-08-14 | 電圧閾値切除方法及び装置 |
Country Status (4)
Country | Link |
---|---|
US (2) | US6413256B1 (ja) |
EP (1) | EP1416869B1 (ja) |
JP (1) | JP4683840B2 (ja) |
WO (1) | WO2003020145A1 (ja) |
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2001
- 2001-08-14 WO PCT/US2001/025409 patent/WO2003020145A1/en active Application Filing
- 2001-08-14 EP EP01967968A patent/EP1416869B1/en not_active Expired - Lifetime
- 2001-08-14 JP JP2003524459A patent/JP4683840B2/ja not_active Expired - Fee Related
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2002
- 2002-04-30 US US10/135,135 patent/US6821275B2/en not_active Expired - Lifetime
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US5669907A (en) * | 1995-02-10 | 1997-09-23 | Valleylab Inc. | Plasma enhanced bipolar electrosurgical system |
EP1034747A1 (en) * | 1999-03-05 | 2000-09-13 | Gyrus Medical Limited | Electrosurgery system and instrument |
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Also Published As
Publication number | Publication date |
---|---|
US20040010249A1 (en) | 2004-01-15 |
US6413256B1 (en) | 2002-07-02 |
WO2003020145A1 (en) | 2003-03-13 |
EP1416869A1 (en) | 2004-05-12 |
EP1416869A4 (en) | 2009-12-02 |
EP1416869B1 (en) | 2012-02-29 |
JP2005501597A (ja) | 2005-01-20 |
US6821275B2 (en) | 2004-11-23 |
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