JPH10505251A - 体内の温度を感知するためのシステム及び方法 - Google Patents
体内の温度を感知するためのシステム及び方法Info
- Publication number
- JPH10505251A JPH10505251A JP8503098A JP50309896A JPH10505251A JP H10505251 A JPH10505251 A JP H10505251A JP 8503098 A JP8503098 A JP 8503098A JP 50309896 A JP50309896 A JP 50309896A JP H10505251 A JPH10505251 A JP H10505251A
- Authority
- JP
- Japan
- Prior art keywords
- thermocouple
- temperature
- exposed
- energy
- temp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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- 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
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- A61B2018/00083—Electrical conductivity low, i.e. electrically insulating
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- 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
- A61B2018/128—Generators therefor generating two or more frequencies
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- 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
- A61B2018/1467—Probes or electrodes therefor using more than two electrodes on a single probe
Landscapes
- Health & Medical Sciences (AREA)
- Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Public Health (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Veterinary Medicine (AREA)
- Otolaryngology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Cardiology (AREA)
- Surgical Instruments (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.体内に配置された装置の地点の温度を感知するためのシステムにおいて、 体内に配置され、装置の地点の温度にさらされる少なくとも1つの熱電対と、 体内の温度にさらすように配置された基準熱電対と、 熱電対と基準熱電対を電気的に結合し、熱電対がさらされている温度に応じて 変化する電圧差を生成する回路 から成ることを特徴とするシステム。 2.体内に配置された装置の地点の温度を感知するためのシステムにおいて、 体内に配置され、装置の地点の温度にさらされる少なくとも1つの熱電対と、 体内に配置され、体温にさらされる基準熱電対と、 熱電対と基準熱電対を電気的に結合し、熱電対がさらされている温度に応じて 変化する電圧差を生成する回路 から成ることを特徴とするシステム。 3.請求項1又は2記載のシステムにおいて、 回路に電気的に結合し、電圧差を計測して熱電対がさらされている温度を取得 する処理要素を更に含むことを特徴とするシステム。 4.請求項2記載のシステムにおいて、 処理システムが以下の方法で温度を取得し、 ここで、 TEMPNは、熱電対がさらされている温度状態で、 TEMPREFは、基準熱電対がさらされている体温で、 ΔVNは、熱電対及び基準熱電対との間で計測される電圧差で、 αは、熱電対の電圧及び温度の関係を表現する既知の関数 であることを特徴とするシステム。 5.体内の組織を加熱するための装置において、 体内で展開される支持要素と、 体内の組織を加熱するための、支持要素上の少なくとも1つのエネルギー放射 地帯と、 エネルギー・エミッタに連係し、体内のエミッタ地点の温度にさらされる少な くとも1つの熱電対と、 体内の体温にさらされる基準熱電対と、 熱電対と基準熱電対を電気的に結合し、熱電対がさらされている温度に応じて 変化する電圧差を生成する回路 から成ることを特徴とするシステム。 6.請求項5記載の装置において、 基準熱電対が体内の支持要素に担持されていることを特徴とする装置。 7.体内の組織を加熱するための装置において、 血液プールを通って体内で展開される支持要素と、 血液プールと接触している、体内組織を加熱するための、支持要素上の少なく とも1つのエネルギー放射地帯と、 エネルギー・エミッタに連係し、体内のエミッタ地点の温度にさらされる少な くとも1つの熱電対と、 体内の血液プールの温度にさらされる基準熱電対と、 熱電対と基準熱電対を電気的に結合し、熱電対がさらされている温度に応じて 変化する電圧差を生成する回路 から成ることを特徴とするシステム。 8.体内の組織を加熱するためのシステムにおいて、 請求項6又は7記載の装置と、 電圧差を計測して熱電対がさらされている温度状態を取得するための回路に電 気的に結合している処理要素 から成ることを特徴とするシステム。 9.請求項8記載のシステムにおいて、 処理システムが以下の方法で温度を取得し、 ここで、 TEMPNは、熱電対がさらされている温度状態で、 TEMPREFは、基準熱電対がさらされている血液プールの温度で、 ΔVNは、熱電対及び基準熱電対との間で計測される電圧差で、 αは、熱電対の電圧及び温度の関係を表現する既知の関数 であることを特徴とするシステム。 10.請求項9記載のシステムにおいて、 エネルギー源をエネルギー・エミッタに結合し、少なくとも部分的に、取得し た温度状態に基づいて、加熱エネルギーをエミッタに送るコントローラを更に含 むことを特徴とするシステム。 11.心臓内の組織のアブレーションを行なうためのプローブにおいて、 心室に展開される支持要素と、 心室内の組織のアブレーションを行なうための、支持本体上の少なくとも1つ のエネルギー放射地帯と、 エネルギー・エミッタに連係し、エミッタ地点の温度にさらされる少なくとも 1つの熱電対と、 体温にさらされる基準熱電対と、 熱電対と基準熱電対を電気的に結合し、熱電対がさらされている温度に応じて 変化する電圧差を生成する回路 から成ることを特徴とするシステム。 12.心臓内の組織のアブレーションを行なうためのプローブにおいて、 心室に展開される支持要素と、 心室内の組織のアブレーションを行なうための、支持本体上の少なくとも2つ のエネルギー放射地帯と、 エネルギー・エミッタに連係し、エミッタ地点の温度にさらされる少なくとも 1つの熱電対と、 単一の基準熱電対と、 各熱電対を単一の基準熱電対に電気的に結合し、各熱電対がさらされている温 度に応じて変化する電圧差を各熱電対に対して生成する回路 から成ることを特徴とするシステム。 13.請求項12記載のプローブにおいて、 単一の基準熱電対が体温にさらされるように位置付けられることを特徴とする プローブ。 14.請求項11又は12又は13記載のプローブにおいて、 基準熱電対が体内で支持要素上に担持されることを特徴とするプローブ。 15.請求項14記載のプローブにおいて、 基準熱電対が体内の血液プールの熱にさらされることを特徴とするプローブ。 16.心臓内の組織のアブレーションを行なうシステムにおいて、 請求項11又は12又は13記載のプローブと、 電圧差を計測し、温度を取得するための回路に電気的に結合している処理要素 から成ることを特徴とするシステム。 17.請求項16記載のシステムにおいて、 処理システムが以下の方法で温度を取得し、 ここで、 TEMPNは、熱電対がさらされている温度状態で、 TEMPREFは、基準熱電対がさらされている血液プールの温度で、 ΔVNは、熱電対及び基準熱電対との間で計測される電圧差で、 αは、熱電対の電圧及び温度の関係を表現する既知の関数 であることを特徴とするシステム。 18.請求項16記載のシステムにおいて、 アブレーション・エネルギー源をエネルギー・エミッタに結合し、少なくとも 部分的に、取得した温度状態に基づいて、アブレーション・エネルギーをエミッ タに送るコントローラを更に含むことを特徴とするシステム。 19.心臓内の組織のアブレーションを行なうためのプローブにおいて、 心室に展開される支持要素と、 心室内の組織のアブレーションを行なうための、支持本体上の少なくとも1つ のエネルギー放射地帯と、 エネルギー・エミッタに連係し、エミッタ地点の温度にさらされる少なくとも 1つの熱電対であって、熱電対が、熱電対と心臓組織との間の熱の接触を妨げず 、一方で熱電対をエネルギー放射地帯から電気的に絶縁するコーティングを含む 熱電対から成ることを特徴とするシステム。 20.請求項19記載のプローブにおいて、 体温にさらされるように位置付けられる基準熱電対と、 熱電対を基準熱電対に電気的に結合し、熱電対がさらされている温度に応じて 変化する電圧差を熱電対に対して生成する回路 を更に含むことを特徴とするプローブ。 21.請求項20記載のプローブにおいて、 熱電対が血液プールの温度にさらされるように位置付けられることを特徴とす るプローブ。 22.心臓内の組織のアブレーションを行なう方法において、 心室内に位置する少なくとも1つのエネルギー・エミッタにアブレーション・ エネルギーを送るステップと、 少なくとも1つの熱電対をエミッタ地点の温度にさらし、一方で基準熱電対を 体温にさらす手段において、熱電対及び基準熱電対が電気的に結合され、熱電対 がさらされている温度に応じて電圧差を生成する手段と、電圧差を計測すること により熱電対がさらされている温度を取得する手段を使用してエミッタ地点の温 度を感知するステップと、 取得した温度に基づいて信号を生成するステップ から成ることを特徴とする方法。 23.請求項22記載の方法において、 アブレーション・エネルギーのエミッタへの伝達を、少なくとも部分的には、 信号に基づいて制御するステップを更に含むことを特徴とする方法。 24.複合熱電対において、 電気を絶縁する材料でできた基質と、 それぞれが異なる導電性の材料から成り、基質上に終端を持つ基質上の第1及 び第2の導電性の経路と、 第1及び第2の導電性の経路の終端をまとめて基質上に電気的に融合し、熱電 対接合部を形成する材料と、 基質上の経路及び熱電対接合部にかぶさる電気絶縁材料の層 から成ることを特徴とする熱電対。 25.請求項24記載の複合熱電対において、 電気を絶縁する材料の層が、熱を伝導することを特徴とする熱電対。 26.請求項24記載の複合熱電対において、 第1及び第2の経路に電気的に結合し、基質の外側に延長している第1及び第 2の接続ワイヤを更に含むことを特徴とする熱電対。 27.請求項24記載の複合熱電対において、 第1及び第2の経路が基質上に蒸着されていることを特徴とする熱電対。 28.請求項24記載の複合熱電対において、 第1及び第2の経路が基質上に被覆されていることを特徴とする熱電対。 29.請求項24記載の複合熱電対において、 第1及び第2の経路が基質上に配置されるワイヤから成ることを特徴とする熱 電対。 30.請求項24記載の複合熱電対において、 基質がチューブ上の形をしていることを特徴とする熱電対。
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US26693494A | 1994-06-27 | 1994-06-27 | |
US08/266,934 | 1994-06-27 | ||
US28693794A | 1994-08-08 | 1994-08-08 | |
US08/286,937 | 1994-08-08 | ||
PCT/US1994/011635 WO1996000039A1 (en) | 1994-06-27 | 1994-10-14 | Systems and methods for sensing temperature within the body |
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Cited By (7)
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JP2007507314A (ja) * | 2003-10-06 | 2007-03-29 | タイコ・エレクトロニクス・コーポレイション | カテーテル先端電極組立体及びその製造方法 |
JP2006263045A (ja) * | 2005-03-23 | 2006-10-05 | Toray Ind Inc | カテーテルおよびカテーテル操縦機構 |
JP2015226768A (ja) * | 2014-05-29 | 2015-12-17 | バイオセンス・ウエブスター・(イスラエル)・リミテッドBiosense Webster (Israel), Ltd. | 複数の熱電対を有するカテーテル電極 |
KR20180120379A (ko) * | 2017-04-27 | 2018-11-06 | (주)씨어스테크놀로지 | 부착 시트 교체가 가능한 생체 신호 측정 장치 |
JP2019120705A (ja) * | 2018-01-10 | 2019-07-22 | バイオセンス・ウエブスター・(イスラエル)・リミテッドBiosense Webster (Israel), Ltd. | 熱的に絶縁された熱電対 |
JP2019118837A (ja) * | 2018-01-10 | 2019-07-22 | バイオセンス・ウエブスター・(イスラエル)・リミテッドBiosense Webster (Israel), Ltd. | 位置制御熱電対 |
JP2019118836A (ja) * | 2018-01-10 | 2019-07-22 | バイオセンス・ウエブスター・(イスラエル)・リミテッドBiosense Webster (Israel), Ltd. | 位置偏倚熱電対 |
Also Published As
Publication number | Publication date |
---|---|
CA2194061C (en) | 2006-04-11 |
CA2194061A1 (en) | 1996-01-04 |
EP0768842A4 (en) | 1998-05-13 |
EP0768842A1 (en) | 1997-04-23 |
US6162184A (en) | 2000-12-19 |
JP3578460B2 (ja) | 2004-10-20 |
WO1996000039A1 (en) | 1996-01-04 |
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