JP2012501729A - 埋め込み医療デバイスのためのtetシステム - Google Patents
埋め込み医療デバイスのためのtetシステム Download PDFInfo
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- A61M60/80—Constructional details other than related to driving
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/871—Energy supply devices; Converters therefor
- A61M60/873—Energy supply devices; Converters therefor specially adapted for wireless or transcutaneous energy transfer [TET], e.g. inductive charging
- A61M60/875—Energy supply devices; Converters therefor specially adapted for wireless or transcutaneous energy transfer [TET], e.g. inductive charging specially adapted for optimising alignment of external and implantable coils
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- A—HUMAN NECESSITIES
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- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
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- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/165—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart
- A61M60/178—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable in, on, or around the heart drawing blood from a ventricle and returning the blood to the arterial system via a cannula external to the ventricle, e.g. left or right ventricular assist devices
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- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
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- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/50—Details relating to control
- A61M60/508—Electronic control means, e.g. for feedback regulation
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- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/50—Details relating to control
- A61M60/508—Electronic control means, e.g. for feedback regulation
- A61M60/538—Regulation using real-time blood pump operational parameter data, e.g. motor current
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- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/871—Energy supply devices; Converters therefor
- A61M60/873—Energy supply devices; Converters therefor specially adapted for wireless or transcutaneous energy transfer [TET], e.g. inductive charging
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/80—Constructional details other than related to driving
- A61M60/855—Constructional details other than related to driving of implantable pumps or pumping devices
- A61M60/871—Energy supply devices; Converters therefor
- A61M60/876—Implantable batteries
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/80—Circuit arrangements or systems for wireless supply or distribution of electric power involving the exchange of data, concerning supply or distribution of electric power, between transmitting devices and receiving devices
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/00032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by data exchange
- H02J7/00034—Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61M2205/00—General characteristics of the apparatus
- A61M2205/82—Internal energy supply devices
- A61M2205/8237—Charging means
- A61M2205/8243—Charging means by induction
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- A—HUMAN NECESSITIES
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- A61M60/00—Blood pumps; Devices for mechanical circulatory actuation; Balloon pumps for circulatory assistance
- A61M60/10—Location thereof with respect to the patient's body
- A61M60/122—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body
- A61M60/126—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel
- A61M60/148—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body implantable via, into, inside, in line, branching on, or around a blood vessel in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
- H02J2310/10—The network having a local or delimited stationary reach
- H02J2310/20—The network being internal to a load
- H02J2310/23—The load being a medical device, a medical implant, or a life supporting device
Abstract
【選択図】 図1
Description
Claims (26)
- (a)電気モータを有するポンプであって、
前記ポンプが埋め込まれている患者の心搏周期によって変わる電力需要を有する、前記ポンプと、
(b)前記患者の身体内に取り付けるように構成された、埋め込み可能な電力ユニットであって、
前記電源は、
二次コイルと、
前記二次コイルに印加された電力を前記ポンプに送信することができるように、前記ポンプに電力を供給するために前記二次コイルに接続された電力回路と、
前記電力回路の状態を監視して、前記監視されている状態を表わす経皮遠隔測定信号を送るように動作可能な監視回路と、
を有する、前記埋め込み可能な電力ユニットと、
(c)外部電源であって、
前記二次コイルと経皮誘導結合するように構成された一次コイルと、
前記一次コイルに交流を印加するように動作可能な駆動回路と、
前記経皮遠隔測定信号を受信して、前記経皮遠隔測定信号に少なくとも部分的に応答して、前記一次コイルにおける前記交流を調節するように動作可能な制御回路と、
を有する、前記外部電源と、
を具備する、循環補助デバイスであって、
前記監視回路と前記制御回路は、
前記電力回路の状態を監視して、
前記心搏周期に実質的に従って、前記一次コイルにおける前記交流を変動させるために、前記電力回路の状態に従って、前記一次コイルにおける前記交流を調節するように動作可能である、循環補助デバイス。 - (a)患者の身体内に取り付けるように構成された、埋め込み可能なポンプであって、
時間と共に変わる電力需要を有する、電気モータを備えた前記埋め込み可能なポンプと、
(b)前記患者の前記身体内に取り付けるように構成された、埋め込み可能な電力ユニットであって、
前記電源は、
二次コイルと、
前記二次コイルに印加された電力を前記埋め込み可能なポンプに送信することができるように、前記埋め込み可能なポンプに電力を供給するために前記二次コイルに接続された電力回路と、
前記電力回路の状態を監視して、前記監視されている状態を表わす経皮遠隔測定信号を送るように動作可能な監視回路と、
を有する、前記埋め込み可能な電力ユニットと、
(c)外部電源であって、
前記二次コイルと経皮誘導結合するように構成された一次コイルと、
前記一次コイルに交流を印加するように動作可能な駆動回路と、
前記経皮遠隔測定信号を受信して、前記経皮遠隔測定信号に少なくとも部分的に応答して、前記一次コイルにおける前記交流を調節するように動作可能な制御回路と、
を有する、前記外部電源と、
を具備する、循環補助デバイスであって、
前記監視されている状態に実質的に従って、前記一次コイルにおける前記交流を変動させて、前記電力回路における前記監視されている状態を希望の範囲内に維持するために、前記制御回路は、前記経皮遠隔測定信号に応答して、前記一次コイルにおける前記交流を調節するように動作可能である、循環補助デバイス。 - 前記監視回路と前記制御回路は、
前記一次コイルと前記二次コイルとの結合における変化に応答して、前記電力回路の前記状態を監視して、
前記結合における変化に実質的に従って、前記一次コイルにおける前記交流を変動させるように、前記一次コイルにおける前記交流を調節して、
前記結合における変化に関わらず、前記電力回路を前記希望の範囲内に維持するように動作可能である、請求項1又は2に記載の循環補助デバイス。 - 前記監視回路は、
前記電力回路の前記状態を監視して、
毎秒少なくとも50回、前記経皮遠隔測定信号を送るように構成されている、請求項1又は2に記載の循環補助デバイス。 - 前記監視されている状態は、前記二次コイルによって供給された電圧を含む、請求項1又は2に記載の循環補助デバイス。
- 前記電力回路は、入力と出力とを有する整流器、を含み、
前記監視されている状態は、前記整流器の前記出力における電圧を含む、請求項1又は2に記載の循環補助デバイス。 - 前記整流器を収容する非強磁性セラミックハウジング、を更に具備する、請求項6に記載の循環補助デバイス。
- 前記整流器は、ショットキーダイオードのブリッジ整流器である、請求項6に記載の循環補助デバイス。
- 前記埋め込み可能な電力ユニットの中の前記電力回路は、
前記整流器の前記出力における前記電圧が過電圧値を超えた場合に、前記整流器の前記入力を通して分流器を接続するように動作可能な過電圧保護要素、を更に含み、
前記過電圧保護要素は、
前記整流器の前記出力における前記電圧が、所定の過電圧値を超えた場合に、前記電力回路をディスエーブルにして、
前記整流器の前記出力における前記電圧が、前記過電圧値よりも小さい回復値未満に下がった場合に、前記電力回路を再びイネーブルにするように動作可能である、請求項6に記載の循環補助デバイス。 - 前記電力回路は、
バッテリと、
ルーティング回路と、を更に含み、
前記ルーティング回路は、
電力が前記二次コイルを通して受信された場合は、前記二次コイルから、前記電気モータ、前記バッテリ、又は前記電気モータと前記バッテリとの両者に、電力をルーティングして、
電力が前記二次コイルによって受信されない場合は、前記バッテリから、前記電気モータに、電力をルーティングするように構成されており、
前記監視回路と前記制御回路は、
前記一次コイルにおける前記電流を変動させて、
充電動作中と、前記バッテリが十分に充電されている場合は動作中とに、前記状態を前記希望の範囲内に維持するように動作可能である、請求項1又は2に記載の循環補助デバイス。 - 前記監視回路は、前記埋め込み可能な電力ユニット内の温度を検出するように動作可能な温度センサ、を更に含む、請求項1又は2に記載の循環補助デバイス。
- 前記検出された温度が閾値を越えると、前記監視回路は、前記埋め込み可能な電力ユニットに接続された埋め込みバッテリ又は前記ポンプのうちの少なくとも一方への、前記電力回路による電流の供給を低減するように構成されている、請求項11に記載の循環補助デバイス。
- 前記駆動回路は、第1の周波数で、前記一次コイルに前記交流を印加するように動作可能であり、
前記監視回路は、前記第1の周波数と異なる周波数で、前記経皮遠隔測定信号を送るように動作可能である、請求項1又は2に記載の循環補助デバイス。 - 前記監視回路は、
第1の送信機と第2の送信機とを含み、
前記第1の送信機を介して、第1の遠隔測定信号を送るように動作可能であり、
前記第1の遠隔測定信号を送信する際に問題がある場合に、前記第2の送信機を介して、第2の遠隔測定信号を送るように動作可能である、請求項13に記載の循環補助デバイス。 - 前記一次コイルと前記二次コイルとの間における電力の効率的で安定した送信のために、前記制御回路は、前記第1の周波数を自動的に調節して、前記一次コイルと前記二次コイルとの間における共振を調節するように動作可能である、請求項13に記載の循環補助デバイス。
- 電力を前記ポンプに供給する埋め込みバッテリがなくても、前記埋め込み可能な電力ユニットが動作することができるように、前記制御回路は、前記経皮遠隔測定信号を受信して、前記一次コイルにおける前記交流を十分なレートで調節するように動作可能である、請求項15に記載の循環補助デバイス。
- (a)患者の身体内に取り付けるように構成された、埋め込み可能な電気デバイスと、
(b)前記患者の前記身体内に取り付けるように構成された、埋め込み可能な電力ユニットであって、
受信コイルと、
前記受信コイルに印加された電力を、前記埋め込み可能な電気デバイスに送信することができるように、前記受信コイルに接続された電力回路と、
を有する、前記埋め込み可能な電力ユニットと、
(c)外部電源であって、
前記受信コイルと経皮誘導結合するように構成された送信コイルであって、前記送信コイルと前記受信コイルとの間の距離に関連して変わる共振周波数を有するシステムを定義する、前記送信コイルと、
交流を前記送信コイルに可変駆動パルス幅で印加するように動作可能な駆動回路と、
制御回路であって、(i)前記送信コイルと前記受信コイルとの間における相互インダクタンスに関するパラメータを監視して、(ii)前記共振周波数からの所定の差を有する値に、可変送信周波数を調節して、前記共振周波数からの所定の差を有する前記可変送信周波数を維持するように動作可能な前記制御回路と、
を有する、前記外部電源と、
を具備する、システム。 - 前記制御回路は、前記共振周波数未満に前記可変送信周波数を維持するように動作可能である、請求項17に記載のシステム。
- 前記所定の差は、前記共振周波数からの割合の差である、請求項18に記載のシステム。
- 前記制御回路は、前記可変送信周波数を、現在の値と、前記現在の値と異なる新たな値との差が、閾値よりも大きい場合に、前記現在の値から前記新たな値に調節するように動作可能である、請求項17に記載のシステム。
- 前記制御回路は、前記監視されているパラメータの様々な値に対応する複数の周波数値を記憶するテーブルを含み、
前記制御回路は、前記監視されているパラメータを使用して、前記テーブルから、前記新たな値を調べるように動作可能である、請求項20に記載のシステム。 - 前記監視されているパラメータは、前記送信コイルと前記受信コイルとの間の距離の推定値を含む、請求項17に記載のシステム。
- 前記制御回路は、前記送信コイルにかかる電圧の少なくとも1つの測定値を使用して、前記距離を推定するように動作可能である、請求項22に記載のシステム。
- 前記制御回路は、前記送信コイルに供給された電流の測定値を更に使用することによって、前記距離を推定するように動作可能である、請求項23に記載のシステム。
- 前記埋め込み可能な電気デバイスは、時間と共に変わる電力需要を有する、電気モータを備えた循環補助ポンプである、請求項17に記載のシステム。
- (a)ポンプであって、
前記ポンプが埋め込まれている患者の心搏周期に実質的に従って変わる電力需要を有する、電気モータを備えた前記ポンプと、
(b)前記患者の身体内に取り付けるように構成された、埋め込み可能な電力ユニットであって、
二次コイルと、
前記二次コイルに印加された電力を前記ポンプに送信することができるように、前記ポンプに電力を供給するために前記二次コイルに接続された電力回路と、
前記電力回路の状態を監視して、前記監視されている状態を表わす経皮遠隔測定信号を定期的な間隔で送るように動作可能な監視回路と、
を有する、埋め込み可能な電力ユニットと、
(c)外部電源であって、
前記二次コイルと経皮誘導結合するように構成された一次コイルと、
前記一次コイルに交流を印加するように動作可能な駆動回路と、
前記経皮遠隔測定信号を受信するように動作可能な受信機と、
前記受信した経皮遠隔測定信号と、少なくとも前記患者の心拍を表わす信号とに基づいて、前記ポンプの瞬間電力需要を推定する予測信号を生成するように動作可能な予測回路と、
前記受信した経皮遠隔測定信号と前記予測信号とに少なくとも部分的に応答して、前記一次コイルにおける前記交流を調節するように動作可能な制御回路と、
を有する、前記外部電源と、
を具備する、循環補助デバイス。
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