JP5514089B2 - マイクロ波手術器 - Google Patents
マイクロ波手術器 Download PDFInfo
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- JP5514089B2 JP5514089B2 JP2010266401A JP2010266401A JP5514089B2 JP 5514089 B2 JP5514089 B2 JP 5514089B2 JP 2010266401 A JP2010266401 A JP 2010266401A JP 2010266401 A JP2010266401 A JP 2010266401A JP 5514089 B2 JP5514089 B2 JP 5514089B2
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- microwave
- surgical instrument
- cooling water
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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
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
-
- 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
-
- 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
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
-
- 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
- A61B2018/00005—Cooling or heating of the probe or tissue immediately surrounding the probe
- A61B2018/00011—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids
- A61B2018/00029—Cooling or heating of the probe or tissue immediately surrounding the probe with fluids open
-
- 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
- A61B2018/00589—Coagulation
-
- 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
- A61B2018/00595—Cauterization
-
- 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
-
- 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
- A61B2018/00696—Controlled or regulated parameters
- A61B2018/00755—Resistance or impedance
-
- 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
- A61B2018/00779—Power or energy
-
- 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
- A61B2018/00779—Power or energy
- A61B2018/00785—Reflected power
-
- 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
- A61B2018/00994—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body combining two or more different kinds of non-mechanical energy or combining one or more non-mechanical energies with ultrasound
-
- 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
- A61B18/18—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
- A61B18/1815—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using microwaves
- A61B2018/1823—Generators therefor
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- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Otolaryngology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Electromagnetism (AREA)
- Plasma & Fusion (AREA)
- Surgical Instruments (AREA)
Description
Rs=Vs/Ic
この抵抗値Rsが30〜50%程度下降すると、マイクロプロセッサ551はマイクロ波の発振を停止するよう、デジタル/アナログ変換器553cを介してマイクロ波発生ユニット50(特に増幅器52)を制御する。なお、マイクロコントローラ55は、予めメモリ(図示省略)に格納している抵抗値変化や時間経過に対する最適印加電力情報のデータに従って、マイクロ波電力を印加させるようにマイクロ波発生ユニット50(特に増幅器52)を制御することもできる。また、マイクロコントローラ55は、スイッチ25が押されると、マイクロプロセッサ551によってマイクロ波発生ユニット50(特に増幅器52)を制御し、マイクロ波を電極部24から照射させる。
2 手術器本体
24 電極部
3 筐体
4 冷却水袋
5 電子回路部
51 マイクロ波発振器
52 増幅器
Claims (9)
- 生体組織にマイクロ波を照射するための電極部を有する手術器本体と、
前記手術器本体に内蔵され、マイクロ波を発振するマイクロ波発振器と、
前記手術器本体に内蔵され、前記電極部と前記マイクロ波発振器との間に接続されており、前記マイクロ波発振器からのマイクロ波を増幅させて前記電極部に送る増幅器と、
前記増幅器と前記電極部との間に接続され、前記増幅器の出力インピーダンスと前記生体組織のインピーダンスとを整合させるための可変出力整合回路と、
前記可変出力整合回路と前記電極部との間に接続され、前記増幅器と前記電極部との間における反射電力及び入射電力を別々に検出する検出回路と、
前記検出回路により検出された前記入射電力および前記反射電力の値に基づいて前記可変出力整合回路を制御する制御手段と、
を備え、
前記可変出力整合回路が、
一端が前記増幅器に接続され、他端が前記検出回路に接続される誘導素子と、
一端が前記誘導素子の一端に接続され、他端が接地される第1の可変静電容量素子と、
一端が前記誘導素子の他端に接続され、他端が接地される第2の可変静電容量素子とを備え、
前記制御手段が、前記マイクロ波が照射されている間の時間的に変化する前記生体組織の状態に応じて、前記第1の可変静電容量素子および前記第2の可変静電容量素子の静電容量を調節する、マイクロ波手術器。 - 前記マイクロ波発振器及び前記増幅器を有するマイクロ波発生ユニットは、マイクロ波を発生させ且つ増幅する手段として半導体素子を用いた半導体マイクロ波発生ユニットである、請求項1に記載のマイクロ波手術器。
- 前記電極部へ低周波交流電流を供給するための低周波定電流源をさらに備えた、請求項1又は2に記載のマイクロ波手術器。
- 電子回路部を内部に収容する筐体と、
前記筐体に近接して配置され、内部に冷却水が供給される冷却水袋と、
をさらに備えた、請求項1〜3のいずれかに記載のマイクロ波手術器。 - 前記冷却水袋は、マイクロ波を照射するタイミングに合わせて冷却水の供給量が制御される、請求項4に記載のマイクロ波手術器。
- 前記冷却水は、生理食塩水である、請求項4又は5に記載のマイクロ波手術器。
- 前記冷却水袋内の生理食塩水を前記電極部に対して排水する排水路をさらに備えた、請求項6に記載のマイクロ波手術器。
- 前記手術器本体は、前記電極部が形成された挿入部を先端に有しており、前記挿入部は取り外し可能である、請求項1〜7のいずれかに記載のマイクロ波手術器。
- 前記手術器本体は、携帯可能な大きさである、請求項1〜8のいずれかに記載のマイクロ波手術器。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010266401A JP5514089B2 (ja) | 2010-11-30 | 2010-11-30 | マイクロ波手術器 |
US13/880,500 US20130282002A1 (en) | 2010-11-30 | 2011-11-17 | Microwave surgical tool |
CN201180057739.0A CN103237517B (zh) | 2010-11-30 | 2011-11-17 | 微波手术器械 |
PCT/JP2011/076501 WO2012073709A1 (ja) | 2010-11-30 | 2011-11-17 | マイクロ波手術器 |
CA2818411A CA2818411A1 (en) | 2010-11-30 | 2011-11-17 | Microwave surgical tool |
KR1020137011675A KR101838932B1 (ko) | 2010-11-30 | 2011-11-17 | 마이크로파 수술기 |
EP11844634.3A EP2647346B1 (en) | 2010-11-30 | 2011-11-17 | Microwave surgical tool |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010266401A JP5514089B2 (ja) | 2010-11-30 | 2010-11-30 | マイクロ波手術器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012115384A JP2012115384A (ja) | 2012-06-21 |
JP5514089B2 true JP5514089B2 (ja) | 2014-06-04 |
Family
ID=46171654
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010266401A Active JP5514089B2 (ja) | 2010-11-30 | 2010-11-30 | マイクロ波手術器 |
Country Status (7)
Country | Link |
---|---|
US (1) | US20130282002A1 (ja) |
EP (1) | EP2647346B1 (ja) |
JP (1) | JP5514089B2 (ja) |
KR (1) | KR101838932B1 (ja) |
CN (1) | CN103237517B (ja) |
CA (1) | CA2818411A1 (ja) |
WO (1) | WO2012073709A1 (ja) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6209989B2 (ja) * | 2014-02-27 | 2017-10-11 | マツダ株式会社 | ターボ過給機付きエンジン |
JP6525303B2 (ja) * | 2016-09-29 | 2019-06-05 | 国立大学法人滋賀医科大学 | 組織接合器 |
GB2564392A (en) * | 2017-07-05 | 2019-01-16 | Creo Medical Ltd | Apparatus and methods for thermally treating ligaments |
WO2020031994A1 (ja) | 2018-08-06 | 2020-02-13 | サンエー精工株式会社 | 医療用処置具 |
US20200405378A1 (en) * | 2019-06-27 | 2020-12-31 | Covidien Lp | Multi-function surgical instruments |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2683427B2 (ja) * | 1989-09-05 | 1997-11-26 | オリンパス光学工業株式会社 | マイクロ波治療装置 |
US6383199B2 (en) * | 1993-08-25 | 2002-05-07 | Inlet Medical, Inc. | Devices for investing within ligaments for retracting and reinforcing the same |
US6974450B2 (en) * | 1999-12-30 | 2005-12-13 | Pearl Technology Holdings, Llc | Face-lifting device |
US7070595B2 (en) | 1998-12-14 | 2006-07-04 | Medwaves, Inc. | Radio-frequency based catheter system and method for ablating biological tissues |
US8636648B2 (en) * | 1999-03-01 | 2014-01-28 | West View Research, Llc | Endoscopic smart probe |
US6511478B1 (en) * | 2000-06-30 | 2003-01-28 | Scimed Life Systems, Inc. | Medical probe with reduced number of temperature sensor wires |
AU2002339884A1 (en) * | 2001-09-05 | 2003-03-18 | Tissuelink Medical, Inc. | Fluid assisted medical devices, fluid delivery systems and controllers for such devices, and methods |
US20050245920A1 (en) * | 2004-04-30 | 2005-11-03 | Vitullo Jeffrey M | Cell necrosis apparatus with cooled microwave antenna |
US7322974B2 (en) * | 2004-08-10 | 2008-01-29 | Medtronic, Inc. | TUNA device with integrated saline reservoir |
GB0624658D0 (en) * | 2006-12-11 | 2007-01-17 | Medical Device Innovations Ltd | Electrosurgical ablation apparatus and a method of ablating biological tissue |
GB0704650D0 (en) * | 2007-03-09 | 2007-04-18 | Medical Device Innovations Ltd | Tissue classifying apparatus |
JP5216994B2 (ja) * | 2007-03-27 | 2013-06-19 | 国立大学法人滋賀医科大学 | マイクロ波手術装置 |
FR2920927B1 (fr) * | 2007-09-11 | 2011-05-06 | Commissariat Energie Atomique | Procede d'adaptation automatique d'impedance de circuit radiofrequence et chaine d'emission ou reception a adaptation automatique |
US9198723B2 (en) * | 2008-03-31 | 2015-12-01 | Covidien Lp | Re-hydration antenna for ablation |
US20100082083A1 (en) * | 2008-09-30 | 2010-04-01 | Brannan Joseph D | Microwave system tuner |
JP6083928B2 (ja) * | 2008-10-21 | 2017-02-22 | マイクロキューブ, エルエルシー | 身体組織にエネルギーに印加する方法および装置 |
GB2467604B (en) * | 2009-02-10 | 2013-08-28 | Univ Bangor | Skin treatment apparatus and method |
KR101124419B1 (ko) * | 2009-02-18 | 2012-03-20 | 포항공과대학교 산학협력단 | 마이크로파 플라즈마 생성을 위한 휴대용 전력 공급 장치 |
US8745846B2 (en) * | 2011-09-20 | 2014-06-10 | Covidien Lp | Method of manufacturing handheld medical devices including microwave amplifier unit |
-
2010
- 2010-11-30 JP JP2010266401A patent/JP5514089B2/ja active Active
-
2011
- 2011-11-17 KR KR1020137011675A patent/KR101838932B1/ko active IP Right Grant
- 2011-11-17 CA CA2818411A patent/CA2818411A1/en not_active Abandoned
- 2011-11-17 EP EP11844634.3A patent/EP2647346B1/en active Active
- 2011-11-17 WO PCT/JP2011/076501 patent/WO2012073709A1/ja active Application Filing
- 2011-11-17 US US13/880,500 patent/US20130282002A1/en not_active Abandoned
- 2011-11-17 CN CN201180057739.0A patent/CN103237517B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CN103237517A (zh) | 2013-08-07 |
KR20130139981A (ko) | 2013-12-23 |
US20130282002A1 (en) | 2013-10-24 |
JP2012115384A (ja) | 2012-06-21 |
EP2647346B1 (en) | 2017-01-18 |
CN103237517B (zh) | 2016-01-13 |
KR101838932B1 (ko) | 2018-04-26 |
EP2647346A1 (en) | 2013-10-09 |
EP2647346A4 (en) | 2014-12-10 |
CA2818411A1 (en) | 2012-06-07 |
WO2012073709A1 (ja) | 2012-06-07 |
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