JP2009511802A - 多溝型ロータを備えた軸流ポンプ - Google Patents
多溝型ロータを備えた軸流ポンプ Download PDFInfo
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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
- A61M60/40—Details relating to driving
- A61M60/403—Details relating to driving for non-positive displacement blood pumps
- A61M60/419—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being permanent magnetic, e.g. from a rotating magnetic coupling between driving and driven magnets
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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
- A61M60/10—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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- 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
- A61M60/10—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
- A61M60/196—Implantable pumps or pumping devices, i.e. the blood being pumped inside the patient's body replacing the entire heart, e.g. total artificial hearts [TAH]
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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
- A61M60/20—Type thereof
- A61M60/205—Non-positive displacement blood pumps
- A61M60/216—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller
- A61M60/237—Non-positive displacement blood pumps including a rotating member acting on the blood, e.g. impeller the blood flow through the rotating member having mainly axial components, e.g. axial flow pumps
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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
- A61M60/40—Details relating to driving
- A61M60/403—Details relating to driving for non-positive displacement blood pumps
- A61M60/422—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being electromagnetic, e.g. using canned motor pumps
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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
- A61M60/50—Details relating to control
- A61M60/508—Electronic control means, e.g. for feedback regulation
-
- 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
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/804—Impellers
- A61M60/806—Vanes or blades
-
- 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
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/81—Pump housings
-
- 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
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/818—Bearings
- A61M60/82—Magnetic bearings
-
- 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
- A61M60/802—Constructional details other than related to driving of non-positive displacement blood pumps
- A61M60/818—Bearings
- A61M60/824—Hydrodynamic or fluid film bearings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
- F04D29/047—Bearings hydrostatic; hydrodynamic
- F04D29/0476—Bearings hydrostatic; hydrodynamic for axial pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
- F04D3/02—Axial-flow pumps of screw type
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
- Cardiology (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Hematology (AREA)
- Anesthesiology (AREA)
- Animal Behavior & Ethology (AREA)
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- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- External Artificial Organs (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
モータを設定された回転速度で稼動させるために制御装置が設けられる。これは例えば主治医によって設定することができる。別法として、モータを、生理学的制御アリゴリスムに応答して変化する回転速度で稼動させることもできる。
Claims (46)
- ポンプハウジングと、
このハウジング内に位置された、血液を圧送するロータであって、回転軸と、前方縁部と後方縁部とを有し、前記前方縁部から前記後方縁部に延びている1つまたは複数の流路によって規定された複数の周囲ランド面を備え、前記流路は、前記ロータが回転されるのに従って血液を軸方向に流すように湾曲にされ、前記ロータの径方向周囲のいくつかの軸方向位置での前記流路の全体の幅は、前記周囲ランド面の全体の合計幅とほぼ等しく、またはこれより小さい、ロータと、
このロータに支持された複数の磁極と、これら磁極と磁気的に相互作用して前記ロータを回転させるように電気的に駆動されるコイルを含むステータとを含むモータとを具備する、血液ポンプ。 - 前記周囲ランド面の夫々は、流体力学的推力軸受面を備えている、請求項1に記載の血液ポンプ。
- 前記軸受面の夫々は、前記ロータの回転軸に対してほぼ横方向に延びている側壁を備えている、請求項2に記載の血液ポンプ。
- 前記ロータを位置決めするように、前記ロータと前記ポンプハウジングとの間に形成された少なくとも1つの磁気軸受を具備する、請求項2に記載の血液ポンプ。
- 前記ロータは、前記ランド面に1つまたは複数の永久磁極を備え、前記モータは、径方向磁束ギャップの設計であって、軸方向の磁気力が前記ロータを定位置に保持する、請求項1に記載の血液ポンプ。
- 前記モータは、前記ポンプハウジングの上を摺動する、前記モータに固定された、ハーメチックシールされた管状ステータを備えている、請求項1に記載の血液ポンプ。
- 前記ポンプハウジングは、円筒状である、請求項1に記載の血液ポンプ。
- 前記ロータは、これに取り付けられた少なくとも1つの永久磁石を備えている、請求項1に記載の血液ポンプ。
- 前記ポンプハウジングは、生体適合可能なチタニウムまたはセラミックにより形成されている、請求項1に記載の血液ポンプ。
- 前記ポンプハウジング内で軸方向に互いに離隔された複数の前記ロータを備え、これらロータの各々は、ロータを回転させる前記モータを有している、請求項1に記載の血液ポンプ。
- 前記ハウジングは、最小限の渦電流損しか呈しないように構成されている、請求項9に記載の血液ポンプ。
- 前記ロータ間に、径方向に延びているステータ板が設けられている、請求項10に記載の血液ポンプ。
- 前記ロータは、酸化を防止するハーメチックシールを規定する共形のポリマーコーティングを有する、請求項1に記載の血液ポンプ。
- 磨耗および摩滅に対して保護するように、前記共形のポリマーコーティングを覆う硬質の滑らかな保護コーティングを具備する、請求項13に記載の血液ポンプ。
- 血液を圧送するための軸流血液ポンプであって、
ほぼ円筒状の外側包囲体と、
この外側包囲体と同心であり、この中に位置され、一端部に入口を、他端部に出口を有する管状のハウジングと、
前記外側包囲体および前記管状のハウジングと同心であり、これらの間に位置されたモータのステータと、
前記管状のハウジングと同心であり、この中に位置されたインペラであって、このインペラ内の磁石、もしくは記インペラの磁化領域と、前記モータのステータとの間の受動的磁力と、前記管状のハウジングと前記インペラに位置された複数の流体力学的推力軸受面との間の血流として生じる流体力学推進力との組み合わせによって、動作中に懸架されるインペラと、
前記管状のハウジングの前記出口と流体密封により連結されて、軸方向の血液を受け取り、血液を軸方向に対して垂直方向に方向付けする渦形室であって、渦形室から軸方向に、前記管状のハウジングの中にこれと同軸方向に延びている流れ向上部材を有している前記渦形室とを具備する、軸流血液ポンプ。 - 血液を圧送するための軸流血液ポンプであって、
ほぼ円筒状の外側包囲体と、
前記外側包囲体と同心であり、この中に位置され、一端部に入口を、他端部に出口を有する管状のハウジングと、
前記外側包囲体および前記管状のハウジングと同心であり、これらの間に位置されたモータのステータと、
前記管状のハウジングと同心であり、この中に位置されたインペラであって、このインペラ内の磁石もしくはインペラの磁化領域と前記モータのステータとの間の受動的磁力と、前記管状のハウジングと前記インペラに位置された複数の流体力学的推力軸受面との間の血流として生じる流体力学推進力との組み合わせによって、動作中に懸架されるインペラと、
前記管状のハウジングの前記出口と流体密封により連結されて、軸方向の血液を受け取り、血液を軸方向または軸方向に対して直角の方向に方向付けし、中に1つまたは複数のステータ羽根を有している整流器、即ち放流器とを具備する軸流血液ポンプ。 - 軸流ポンプ用のロータであて、
流体を回転軸の方向に流すための円筒状本体であって、流体と当たるための前方縁部分と、流体を放出するための後方縁部分とを有し、前記前方縁部分から前記後方縁部分に流体を導く、前記円筒状本体の周囲に形成された1つまたは複数の流路を有し、前記1つまたは複数の流路は、前記円筒状本体の回転軸のまわりで湾曲にされて、前記ロータの回転中に、前記円筒状本体を通って軸方向に移動され、前記円筒状本体から放出される流体に回転モーメントを与える、前記円筒状本体と、
前記1つまたは複数の流路を規定する縁部を有している前記円筒状本体の周囲に設けられ、前記ロータ内部の磁束と相互作用するための所定の磁極を有し、回転移動を前記ロータに与えることができる前記弓形ランドエリア面とを具備するロータ。 - 前記流路を複数備え、これら流路の各々は、ロータの前記前方縁部分に流体進入セクションを、また、前記ロータの前記後方縁部分に流体出口セクションを規定している、請求項17に記載のロータ。
- 前記流路の各々は、この流路の他のセクションよりも実質的に狭い中央セクションを有している、請求項18に記載のロータ。
- 前記流体出口セクションは、前記ロータの回転軸に対してほぼ軸方向に延びている、請求項18に記載のロータ。
- 前記流路の各々の前記流体出口セクションは、前記流体進入セクションよりも広い、請求項18に記載のロータ。
- 前記ランドエリア面の各々は、前記ランドエリア面の縁部の1つにある低位点から、前記円筒状本体の周囲にある高位点へと延びている傾斜部分を有しているほぼ弓形の推力軸受面を備えている、請求項17に記載のロータ。
- 前記傾斜付推力軸受面の曲率軸は、前記円筒状本体の回転軸と同軸ではない、請求項22に記載のロータ。
- 前記ランドエリア面の各々は、前記弓形推力軸受面を2つ以上備え、前記推力軸受面の曲率軸は、互いにほぼ平行である、請求項23に記載のロータ。
- 前記推力軸受面は、前記ランドエリア面の縁部の1つにある高位点から延びて前記円筒状本体の周囲と一つになる側壁によって各側に規定されている、請求項22に記載のロータ。
- 前記推力軸受面の各々の下流の前記円筒状本体の周囲は、前記推力軸受面から離れるように湾曲にされて、前記推力軸受面から流れる流体のための圧力逃がし面を規定している、請求項25に記載のロータ。
- 前記ロータには、ロータの回転中に動的釣り合いをもたらすように複数の穴が設けられている、請求項17に記載のロータ。
- 前記流路の各々は、深さが、前記流路の長さに沿って、前記前方縁部分から前記後方縁部分にかけて不均一である、請求項17に記載のロータ。
- 前記ポンプハウジングは、前記ロータが前記モータによって回転されるときに渦電流損を最小限に抑えるように適合された材料を備えている、請求項1に記載のロータ。
- 熱処理された生物医学的合金を備えている、請求項1に記載のロータ。
- 前記合金は、プラチナとコバルトからなる、請求項30に記載のロータ。
- 70重量%から80重量%の範囲のプラチナを備えている、請求項31に記載のロータ。
- 20重量%から30重量%の範囲のコバルトを備えている、請求項30に記載のロータ。
- 76重量%から79重量%の範囲のプラチナを備えている、請求項32に記載のロータ。
- 請求項17のロータを備えている、請求項1に記載の血液ポンプ。
- 前記ロータの前記前方縁部分と前記後方縁部分との一方に、1つの極性の軸方向に保持する磁極が設けられている、請求項35に記載の血液ポンプ。
- 前記ポンプハウジングは、前記ロータの前記軸方向に保持する磁極に隣接するように位置された前記1つの極性の固定された磁極が設けられている、請求項36に記載の血液ポンプ。
- 患者の血管系に埋め込まれるように適合された、請求項37に記載の血液ポンプ。
- 前記ポンプハウジングは、管状であり、また、前記血液ポンプは、前記ポンプハウジングの中で軸方向に互いに離隔されてアラインメントされた前記ロータを複数備えている、請求項1に記載の血液ポンプ。
- 前記ロータは、前記ハウジングの中で互いに連結されて、共通のシャフトで一緒に同じ方向に回転する、請求項39に記載の血液ポンプ。
- 前記ロータの各々は、懸架されて、共通のシャフトなしで前記ハウジングの中で独立して回転する、請求項39に記載の血液ポンプ。
- 前記ロータの各々は、直ぐ上流および直ぐ下流の隣接するロータとは異なった回転方向で回転する、請求項41に記載の血液ポンプ。
- 前記ロータの各々は、直ぐ上流および直ぐ下流の隣接するロータとは異なった回転速度で回転する、請求項41に記載の血液ポンプ。
- 前記ロータの各々は、複数の駆動磁石を備え、また、前記モータは、径方向磁束ギャップの設計を備え、磁力が、各ロータを前記ハウジングの中で軸方向位置に懸架する、請求項39に記載の血液ポンプ。
- 等方性材料を備えている、請求項17に記載のロータ。
- 異方性材料を備えている、請求項17に記載のロータ。
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/243,722 US8419609B2 (en) | 2005-10-05 | 2005-10-05 | Impeller for a rotary ventricular assist device |
US11/243,722 | 2005-10-05 | ||
PCT/US2005/035964 WO2006118600A2 (en) | 2005-04-29 | 2005-10-06 | Multiple rotor, wide blade, axial flow pump |
USPCT/US2005/035964 | 2005-10-06 | ||
PCT/US2005/042495 WO2006060260A2 (en) | 2004-12-03 | 2005-11-22 | Wide blade axial flow pump |
USPCT/US2005/042495 | 2005-11-22 | ||
PCT/US2006/021544 WO2007040663A1 (en) | 2005-10-05 | 2006-06-02 | Axial flow pump with multi-grooved rotor |
Publications (2)
Publication Number | Publication Date |
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JP2009511802A true JP2009511802A (ja) | 2009-03-19 |
JP5038316B2 JP5038316B2 (ja) | 2012-10-03 |
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JP2008534517A Expired - Fee Related JP5038316B2 (ja) | 2005-10-05 | 2006-06-02 | 多溝型ロータを備えた軸流ポンプ |
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JP (1) | JP5038316B2 (ja) |
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US9533082B2 (en) | 2011-10-13 | 2017-01-03 | Thoratec Corporation | Pump and method for mixed flow blood pumping |
US9387285B2 (en) | 2012-03-05 | 2016-07-12 | Thoratec Corporation | Modular implantable medical pump |
US9186447B2 (en) | 2012-03-05 | 2015-11-17 | Thoratec Corporation | Modular implantable medical pump |
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JP2016532500A (ja) * | 2013-08-14 | 2016-10-20 | ハートウェア,インコーポレイテッド | 軸流ポンプ用のインペラ |
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US10724534B2 (en) | 2014-11-26 | 2020-07-28 | Tc1 Llc | Pump and method for mixed flow blood pumping |
JP2018534473A (ja) * | 2015-11-10 | 2018-11-22 | ピアーブルグ パンプ テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツングPierburg Pump Technology GmbH | 電動モータ型自動車用軸流液ポンプ |
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JP2021531136A (ja) * | 2018-07-31 | 2021-11-18 | カーディオバスキュラー システムズ, インコーポレイテッドCardiovascular Systems, Inc. | ハンドルにコントロール部およびディスプレイスクリーンを有する血管内ポンプ |
JP7187666B2 (ja) | 2018-07-31 | 2022-12-12 | カーディオバスキュラー システムズ, インコーポレイテッド | ハンドルにコントロール部およびディスプレイスクリーンを有する血管内ポンプ |
Also Published As
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US9737652B2 (en) | 2017-08-22 |
CA2841675C (en) | 2015-09-01 |
KR20080056754A (ko) | 2008-06-23 |
US20180028734A1 (en) | 2018-02-01 |
US20150031936A1 (en) | 2015-01-29 |
CA2841675A1 (en) | 2007-04-12 |
CA2624704A1 (en) | 2007-04-12 |
US10251985B2 (en) | 2019-04-09 |
US20150038769A1 (en) | 2015-02-05 |
US9956332B2 (en) | 2018-05-01 |
US9339598B2 (en) | 2016-05-17 |
US8007254B2 (en) | 2011-08-30 |
JP5038316B2 (ja) | 2012-10-03 |
CN102935249B (zh) | 2016-03-30 |
US20070078293A1 (en) | 2007-04-05 |
US8419609B2 (en) | 2013-04-16 |
IL190337A0 (en) | 2009-09-22 |
CN102600518B (zh) | 2016-01-13 |
US20160271308A1 (en) | 2016-09-22 |
KR101277183B1 (ko) | 2013-06-20 |
US8668473B2 (en) | 2014-03-11 |
CN102935249A (zh) | 2013-02-20 |
CA2624704C (en) | 2014-04-22 |
US20100069847A1 (en) | 2010-03-18 |
US8790236B2 (en) | 2014-07-29 |
CN101282748A (zh) | 2008-10-08 |
IL190337A (en) | 2012-05-31 |
CN102600518A (zh) | 2012-07-25 |
US20070100196A1 (en) | 2007-05-03 |
US20110301403A1 (en) | 2011-12-08 |
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