JP2015131116A - マイクロ波アブレーションアンテナ放射検出器 - Google Patents
マイクロ波アブレーションアンテナ放射検出器 Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
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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
- A61B18/1492—Probes or electrodes therefor having a flexible, catheter-like structure, e.g. for heart ablation
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
- G01R29/0878—Sensors; antennas; probes; detectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/248—Supports; Mounting means by structural association with other equipment or articles with receiving set provided with an AC/DC converting device, e.g. rectennas
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00017—Electrical control of surgical instruments
- A61B2017/00022—Sensing or detecting at the treatment site
- A61B2017/00039—Electric or electromagnetic phenomena other than conductivity, e.g. capacity, inductivity, Hall effect
Abstract
【解決手段】マイクロ波アブレーションシステム10はマイクロ波発生器14に連結されたマイクロ波アンテナアセンブリ12を備える。マイクロ波アンテナアセンブリに設けられる放射検出器30は、逸脱したマイクロ波エネルギーを受信するように適合された受信アンテナと、前記受信アンテナに結合され、前記逸脱したマイクロ波エネルギーの少なくとも一部を調整するように適合された調整器と、を有する。フィルタが、前記調整器に結合されており、前記調整されたマイクロ波エネルギーを検出信号に変換するように適合されている。
【選択図】図1
Description
Claims (13)
- マイクロ波エネルギーを検出するための方法において、
マイクロ波アブレーションデバイスに結合された受信アンテナにおいてマイクロ波エネルギーを受け取ることと、
前記受信アンテナに結合された少なくとも1つの調整器を通して前記マイクロ波エネルギーの少なくとも一部を調整することと、
前記少なくとも1つの調整器に結合されたフィルタを通して、前記調整されたマイクロ波エネルギーをフィルタリングして、前記調整されたマイクロ波エネルギーを検出信号へと変換することと
を含む方法。 - 前記フィルタは、直列、又は並列に結合された、コンデンサ、インダクタ、及び抵抗器を備える、請求項1記載の方法。
- 前記検出信号を、所定の閾値信号に比較することと、
前記検出信号の、前記所定の閾値信号との比較に基づいて、前記マイクロ波エネルギーの発生を中断すること
を含む、請求項1記載の方法。 - 前記検出信号の、前記所定の閾値信号との比較に基づいて、警告を提供することをさらに含む、請求項3記載の方法。
- 前記フィルタに結合された発光素子を通電させることをさらに含み、前記発光素子は、前記所定の閾値信号よりも強い前記検出信号に応答して作動するように適合されている、請求項4記載の方法。
- 前記マイクロ波アブレーションアセンブリに結合された発生器に、前記検出信号を送信することをさらに含む、請求項1記載の方法。
- 前記検出信号を、接地線を通して前記発生器に供給された基準信号に比較することと、
前記検出信号の前記基準信号との比較に基づいて、前記マイクロ波エネルギーの発生を中止することと
をさらに含む、請求項6記載の方法。 - 前記検出信号の電圧レベルを電圧制限回路で調節することをさらに含み、前記電圧制限回路は、高インピーダンス電圧バッファを備える、請求項7記載の方法。
- マイクロ波エネルギーを検出するための方法において、
マイクロ波アブレーションデバイスに結合された受信アンテナにおいてマイクロ波エネルギーを受け取ることと、
前記受信アンテナに結合された少なくとも1つの調整器を通して前記マイクロ波エネルギーの少なくとも一部を調整することと、
前記少なくとも1つの調整器に結合されたフィルタを通して、前記調整されたマイクロ波エネルギーをフィルタリングして、前記調整されたマイクロ波エネルギーを検出信号へと変換することと、
前記フィルタに結合された表示を通して、前記検出信号が所定の閾値を超えたことを示すことと
を含む方法。 - 前記フィルタは、直列、又は並列に結合された、コンデンサ、インダクタ、及び抵抗器を備える、請求項9記載の方法。
- 前記表示は可聴警報である、請求項9記載の方法。
- 前記表示は発光素子である、請求項9記載の方法。
- 前記発光素子は、前記検出信号により作動される、請求項11記載の方法。
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US12/487,917 | 2009-06-19 | ||
US12/487,917 US8552915B2 (en) | 2009-06-19 | 2009-06-19 | Microwave ablation antenna radiation detector |
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JP2010139423A Division JP5815927B2 (ja) | 2009-06-19 | 2010-06-18 | マイクロ波アブレーションアンテナ放射検出器 |
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JP2015009601A Active JP6411901B2 (ja) | 2009-06-19 | 2015-01-21 | マイクロ波アブレーションアンテナ放射検出器 |
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