JP2001506895A - 水中手術のための電気外科用ジェネレータ及びシステム - Google Patents
水中手術のための電気外科用ジェネレータ及びシステムInfo
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- A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
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- 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
- A61B18/1485—Probes or electrodes therefor having a short rigid shaft for accessing the inner body through natural openings
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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
- A61B18/1206—Generators therefor
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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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00642—Sensing and controlling the application of energy with feedback, i.e. closed loop control
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- 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
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- A61B2018/00702—Power or energy
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- 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
- A61B2018/00696—Controlled or regulated parameters
- A61B2018/00726—Duty cycle
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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
- A61B2018/00636—Sensing and controlling the application of energy
- A61B2018/00773—Sensed parameters
- A61B2018/00869—Phase
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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
- A61B18/1206—Generators therefor
- A61B2018/1246—Generators therefor characterised by the output polarity
- A61B2018/126—Generators therefor characterised by the output polarity bipolar
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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
- A61B2018/1472—Probes or electrodes therefor for use with liquid electrolyte, e.g. virtual electrodes
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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
- A61B18/16—Indifferent or passive electrodes for grounding
- A61B2018/162—Indifferent or passive electrodes for grounding located on the probe body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2218/00—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
- A61B2218/001—Details of surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body having means for irrigation and/or aspiration of substances to and/or from the surgical site
- A61B2218/002—Irrigation
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.電気器具に無線周波電力を供給するための電気外科用ジェネレータであって 、無線周波電力を前記器具に供給するための少なくとも一対の出力ラインを有す る無線周波出力段と、この出力段へ接続されて出力段へ電力を供給する電力供給 装置と、制御回路とを有し、該制御回路が、前記出力ラインの両端に現れる無線 周波ピーク出力電圧を表す検出信号を得るための検出手段を有し、前記出力段が 、前記出力ラインへ接続された直列共振出力回路と、この共振出力回路へ接続さ れたスイッチング手段とを有し、前記制御回路が、前記検出信号の所定の状態に 応じて前記スイッチング手段のスイッチング間隔を変えることによって、供給さ れる無線周波電力を減らすように動作できるジェネレータ。 2.前記直列共振出力回路がインダタタンスとキャパシタンスとの直列組を有し ていて、これらの直列組の両端においてスイッチングされた無線周波出力波形が 生じるように、前記スイッチング手段に接続されており、当該ジェネレータの前 記出力ラインが前記共振出力回路に接続されて、前記インダクタンス及びキャパ シタンスの両端において生じる無線周波電圧を受け取る請求項1のジェネレータ 。 3.前記出力ラインは前記インダクタンスの両端に生じる無線周波電圧を受け取 るように接続されている請求項2のジェネレータ。 4.前記直列組は前記スイッチング手段とアース接続部もしくは前記電力供給装 置の一対の供給レールの一方との間に接続されており、当該ジェネレータの前記 出力ラインの一方は前記インダタタンスと前記キャパシタンスとの間の接続部に 接続されている請求項2のジェネレータ。 5.前記キャパシタンスは前記スイッチング手段と前記接続部との間に接続され ており、前記インダクタンスは前記接続部と前記供給レールの一方のアース接続 部との間に接続されている請求項4のジェネレータ。 6.前記スイッチング手段はブリッジ構造で接続された半導体スイッチデバイス を有しており、前記直列組は前記スイッチング手段の互いに反対位相のノードの 間に接続されている請求項2のジェネレータ。 7.前記直列共振回路と前記出力ラインの一方との間の信号経路に接続された直 列連結キャパシタンスを有している請求項2〜6のいずれかのジェネレータ。 8.前記連結キャパシタンスは前記直列共振組のキャパシタンスよりも小さな値 のものである請求項7のジェネレータ。 9.前記スイッチング手段は前記電力供給装置の供給レール対間にプッシュ−プ ル配置で接続された一対の電子スイッチを有しており、前記直列共振出力回路は 前記電子スイッチ間の接続部に接続されている請求項1〜8のいずれかのジェネ レータ。 10.前記スイッチング手段はブリッジ構造で2対の電子スイッチを有しており 、これらの各対は前記供給レール間にプッシュ−プル直列配置で接続されており 、前記直列共振出力回路は一方の対のスイッチと、他方の対のスイッチ間の接続 部との間に接続されており、前記2対のスイッチはそれぞれ互いに反対の位相で 駆動されるようになっている請求項9のジェネレータ。 11.前記スイッチング手段は前記共振出力回路を通じて無線周波数で電流を繰 り返しスイッチングするように接続されており、前記制御回路は前記スイッチン グ手段に接続されて、供給出力電力が所定の無線周波ピータ出力電圧しきい値に 達してから100μs以内に少なくとも50%減少させるように、前記スイッチ ング手段の無線周波数のデューティーサイクルを十分急激に減少させる構成とな っている請求項1〜10のいずれかのジェネレータ。 12.前記スイッチング手段は前記共振出力回路を通じて無線周波数で電流を繰 り返しスイッチングするように接続されており、前記制御回路は前記スイッチン グ手段に接続されて、供給出力電力が所定の無線周波ピーク出力電圧しきい値に 達してから100μs以内に少なくとも50%減少させるように、前記スイッチ ング手段の無線周波数のデューティーサイクルを十分急激に減少させる構成とな っており、また前記制御回路は前記電子スイッチの各々を駆動して部分サイクル スイッチングを行なわせる構成となっており、前記電子スイッチは各々それぞれ の無線周波サイクル間における可変オン時間を有しており、この両スイッチのオ ン時間は無線周波の5サイクル内に前記の少なくとも50%の電力減少を行わせ るように十分迅速に制御可能となっている請求項9及び11もしくは10及び1 1のいずれかのジェネレータ。 13.前記制御回路はランプ波形発生器を有する駆動段を含んでおり、該ランプ 波形発生器は前記駆動段に供給される制御信号によって、まず前記無線周波のデ ューティーサイクルを減少させて、前記出力ラインを介して供給される電力を少 なくとも50%減少させ、次いで前記所定の電圧しきい値に再び達したことを前 記検出信号が示すまで、やや遅い迅速な速度で前記デューティーサイクルを徐々 に増加させる請求項11もしくは12のジェネレータ。 14.前記スイッチング手段を駆動する発振器をさらに有しており、該発振器は 前記直列共振組の共振周波数とは異なる周波数で動作可能である請求項1〜13 のいずれかのジェネレータ。 15.無線周波電力を発生するためのジェネレータと、導電性液体内に浸して利 用させる少なくとも1つの電極を備えた電気外科器具とを有する電気外科システ ムであって、前記ジェネレータは少なくとも1つの無線周波電力装置を有する出 力段と、直列共振回路と、前記電力装置から無線周波電力を受け取るように配置 された少なくとも1対の出力接続部とを有しており、該出力接続部対の一方は前 記電極に接続されており、前記ジェネレータはさらに制御段を有し、該制御段は 前記出力接続部の両端のピーク出力電圧が所定の検出信号しきい値を越えたこと を示す検出信号に応答して、個々の無線周波サイクル間における前記電力装置の 導通時間を減少させるように動作して、導電性液体が蒸発した時に前記電極に供 給される無線周波電力を急激に減少させることができる電気外科システム。 16.前記電極は突出状の処置電極と、該処置電極から隔てられた液体接触電極 とを有しており、これらの両電極は導電性液体によって取り囲まれて利用される ものであり、また各々前記出力接続部対の対応する一方に接続されており、前記 制御段は前記処置電極の箇所の導電性液体が蒸発した時に前記電力装置の導通時 間を減少させて、前記処置電極の箇所において生じた泡を崩壊させかつ電気負荷 インピーダンスを減少させるように作動できる請求項15のシステム。 17.前記電気外科器具は導電性液体内に浸すための並列配置された第1及び第 2の電極を有する電極構造を有しており、該第1及び第2の電極は器具の末端に おける組織接触電極と該組織接触電極から基部側に隔てられたリターン電極とを それぞれ形成する請求項16のシステム。 18.前記電力装置と前記出力接続部との間に接続された直列共振回路は前記ジ ェネレータの動作周波数とは異なる共振周波数を有している請求項16もしくは 17のシステム。 19.少なくとも乾燥モードと組織切断或いは蒸発モードとで作動可能であり、 前記ジェネレータはモード選択コントローラを有しており、前記制御段は前記電 極構造に供給される無線周波電力を自動的に調整して、ジエネレータのピータ出 力電圧が、前記乾燥モードが選択された時には第1の値に制限され、また前記切 断或いは蒸発モードが選択された時には少なくとも1つの第2の値に制限される ように作動でき、前記第2の値は前記第1の値よりも高い値である、請求項15 〜18のいずれかのシステム。 20.前記第1及び第2の値はそれぞれ150V〜200V及び250V〜60 0Vの範囲内にあり、またこれらの値はピーク電圧である請求項18のシステム 。 21.少なくとも乾燥モードと組織切断或いは蒸発モードとで作動可能であり、 また、前記電力装置を駆動するための無線周波発振器を有しており、前記ジェネ レータは前記発振器に接続されたモード選択コントローラを有しており、該モー ド選択コントローラは前記切断或いは蒸発モードにおいては前記発振器の発振周 波数が前記共振出力回路の共振周波数よりも高くなり、乾燥モードにおいては前 記発振器の発振周波数が共振周波数よりも低くなるように調整する請求項15〜 18のいずれかのシステム。 22.前記連結キャパシタンス及び前記直列共振回路の構成部品の値は、発振周 波数と共振周波数との差が1/4(Ccfr/Cr)と(Ccfr/Cr)との間の値になるように設 定されており、ここで、Ccは連結キャパシタンス、Crは直列共振回路のキャパシ タンス、frは共振周波数である、請求項14及び請求項7のいずれかのジェネ レータ。 23.無線周波電力を電気外科器具に供給するための電気外科ジェネレータであ って、無線周波電力を前記器具に送るための少なくとも1対の電気外科出力接続 部を有する無線周波出力段と、無線周波信号を前記出力段に供給するための無線 周波発振器と、制御回路とを有しており、該制御回路は前記出力接続部から送ら れる無線周波信号を表す検出信号を得るための検出手段を有しており、前記出力 段は前記出力接続部に接続された直列共振出力回路を有しており、該共振出力回 路の共振周波数は前記発振器の動作周波数とは異なっており、前記制御回路は送 られる無線周波電力を制御するためのフィードバック信号を与える電気外科ジェ ネレータ。 24.前記出力段はプッシュ−プル出力段であり、前記制御回路は前記出力段の 一部を構成する1つもしくは複数の半導体デバイスのオン時間を動作周波数とは 独立して変えるように作動できる請求項23のジェネレータ。 25.前記検出手段は前記出力接続部の両端に生じた無線周波ピーク出力電圧を 表す検出信号を得るように構成されている請求項23もしくは24のジエネレー タ。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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GB9626512.9 | 1996-12-20 | ||
GBGB9626512.9A GB9626512D0 (en) | 1996-12-20 | 1996-12-20 | An improved electrosurgical generator and system |
PCT/GB1997/003469 WO1998027880A1 (en) | 1996-12-20 | 1997-12-17 | Electrosurgical generator and system for underwater operation |
Publications (2)
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JP2001506895A true JP2001506895A (ja) | 2001-05-29 |
JP2001506895A5 JP2001506895A5 (ja) | 2005-07-14 |
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Family Applications (1)
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JP52851998A Ceased JP2001506895A (ja) | 1996-12-20 | 1997-12-17 | 水中手術のための電気外科用ジェネレータ及びシステム |
Country Status (14)
Country | Link |
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US (1) | US6093186A (ja) |
EP (1) | EP0949886B1 (ja) |
JP (1) | JP2001506895A (ja) |
KR (1) | KR20000069611A (ja) |
CN (1) | CN1245410A (ja) |
AR (1) | AR012291A1 (ja) |
AU (1) | AU731415B2 (ja) |
BR (1) | BR9714228A (ja) |
CA (1) | CA2275405A1 (ja) |
DE (1) | DE69715452T2 (ja) |
ES (1) | ES2183226T3 (ja) |
GB (1) | GB9626512D0 (ja) |
WO (1) | WO1998027880A1 (ja) |
ZA (1) | ZA9711369B (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011041265A (ja) * | 2009-07-17 | 2011-02-24 | Vivant Medical Inc | 高効率マイクロ波増幅器 |
JP2012525169A (ja) * | 2009-04-29 | 2012-10-22 | エルベ エレクトロメディジン ゲーエムベーハー | Hf外科用ジェネレータ及びhf外科用ジェネレータの作動方法 |
JP2013512056A (ja) * | 2009-12-01 | 2013-04-11 | エルベ エレクトロメディジン ゲゼルシャフト ミット ベシュレンクテル ハフツング | 電気外科用発電機 |
JP2017202385A (ja) * | 2010-10-22 | 2017-11-16 | ジャスト ライト サージカル,リミティド ライアビリティ カンパニー | 外科血管封止用の高周波発生器システム |
Families Citing this family (803)
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- 1996-12-20 GB GBGB9626512.9A patent/GB9626512D0/en active Pending
-
1997
- 1997-12-17 CA CA002275405A patent/CA2275405A1/en not_active Abandoned
- 1997-12-17 BR BR9714228-0A patent/BR9714228A/pt unknown
- 1997-12-17 KR KR1019997005608A patent/KR20000069611A/ko not_active Application Discontinuation
- 1997-12-17 ES ES97950260T patent/ES2183226T3/es not_active Expired - Lifetime
- 1997-12-17 AU AU53284/98A patent/AU731415B2/en not_active Ceased
- 1997-12-17 JP JP52851998A patent/JP2001506895A/ja not_active Ceased
- 1997-12-17 WO PCT/GB1997/003469 patent/WO1998027880A1/en not_active Application Discontinuation
- 1997-12-17 CN CN97181655A patent/CN1245410A/zh active Pending
- 1997-12-17 EP EP97950260A patent/EP0949886B1/en not_active Expired - Lifetime
- 1997-12-17 DE DE69715452T patent/DE69715452T2/de not_active Expired - Fee Related
- 1997-12-18 ZA ZA9711369A patent/ZA9711369B/xx unknown
- 1997-12-18 US US08/993,929 patent/US6093186A/en not_active Expired - Lifetime
- 1997-12-19 AR ARP970106037A patent/AR012291A1/es not_active Application Discontinuation
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012525169A (ja) * | 2009-04-29 | 2012-10-22 | エルベ エレクトロメディジン ゲーエムベーハー | Hf外科用ジェネレータ及びhf外科用ジェネレータの作動方法 |
JP2015120037A (ja) * | 2009-04-29 | 2015-07-02 | エルベ エレクトロメディジン ゲーエムベーハーErbe Elektromedizin GmbH | Hf外科用ジェネレータ及びhf外科用ジェネレータの作動方法 |
JP2011041265A (ja) * | 2009-07-17 | 2011-02-24 | Vivant Medical Inc | 高効率マイクロ波増幅器 |
JP2013512056A (ja) * | 2009-12-01 | 2013-04-11 | エルベ エレクトロメディジン ゲゼルシャフト ミット ベシュレンクテル ハフツング | 電気外科用発電機 |
US9192423B2 (en) | 2009-12-01 | 2015-11-24 | Erbe Elektromedizin Gmbh | High frequency surgery generator |
JP2017202385A (ja) * | 2010-10-22 | 2017-11-16 | ジャスト ライト サージカル,リミティド ライアビリティ カンパニー | 外科血管封止用の高周波発生器システム |
US10342599B2 (en) | 2010-10-22 | 2019-07-09 | Just Right Surgical, Llc | RF generator system for surgical vessel sealing |
Also Published As
Publication number | Publication date |
---|---|
CN1245410A (zh) | 2000-02-23 |
CA2275405A1 (en) | 1998-07-02 |
EP0949886B1 (en) | 2002-09-11 |
ZA9711369B (en) | 1998-06-22 |
KR20000069611A (ko) | 2000-11-25 |
AU731415B2 (en) | 2001-03-29 |
WO1998027880A1 (en) | 1998-07-02 |
EP0949886A1 (en) | 1999-10-20 |
GB9626512D0 (en) | 1997-02-05 |
BR9714228A (pt) | 2000-04-18 |
ES2183226T3 (es) | 2003-03-16 |
AU5328498A (en) | 1998-07-17 |
US6093186A (en) | 2000-07-25 |
DE69715452T2 (de) | 2003-02-20 |
AR012291A1 (es) | 2000-10-18 |
DE69715452D1 (de) | 2002-10-17 |
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