WO2005030296A3 - Axial-flow blood pump with magnetically suspended, radially and axially stabilized impeller - Google Patents

Axial-flow blood pump with magnetically suspended, radially and axially stabilized impeller Download PDF

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Publication number
WO2005030296A3
WO2005030296A3 PCT/US2004/031582 US2004031582W WO2005030296A3 WO 2005030296 A3 WO2005030296 A3 WO 2005030296A3 US 2004031582 W US2004031582 W US 2004031582W WO 2005030296 A3 WO2005030296 A3 WO 2005030296A3
Authority
WO
WIPO (PCT)
Prior art keywords
impeller
magnets
stator
radially
blood pump
Prior art date
Application number
PCT/US2004/031582
Other languages
French (fr)
Other versions
WO2005030296A2 (en
Inventor
Paul E Allaire
Don B Olsen
Houston G Wood
Ronald Kipp
Wei Jiang
Zongli Lin
Guoxin Li
Alexandrina Untaroiu
Amy L Throckmorton
Xinwei Song
Steven W Day
Original Assignee
Medforte Res Foundation
Uva Patent Foundation
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US10/950,176 external-priority patent/US7229258B2/en
Priority claimed from US10/949,884 external-priority patent/US7070398B2/en
Application filed by Medforte Res Foundation, Uva Patent Foundation filed Critical Medforte Res Foundation
Priority to DE112004001809T priority Critical patent/DE112004001809T5/en
Publication of WO2005030296A2 publication Critical patent/WO2005030296A2/en
Publication of WO2005030296A3 publication Critical patent/WO2005030296A3/en

Links

Classifications

    • 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
    • F04D29/048—Bearings magnetic; electromagnetic
    • 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
    • A61M60/165—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
    • 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
    • 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
    • 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
    • A61M60/816—Sensors arranged on or in the housing, e.g. ultrasound flow sensors
    • 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
    • A61M60/822—Magnetic bearings specially adapted for being actively controlled
    • 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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Cardiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • External Artificial Organs (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A blood pump (10) has an impeller (14) rotatably disposed and magnetically suspended within a cavity (22) of a stator (18) by a plurality of magnetic bearings (40, 50, 60) including an axial bearing (40) to support the impeller axially in the cavity. The axial bearing includes adjacent impeller magnets (44a, b & c) and adjacent stator magnets (42a, b & c) with axially aligned polarities and reverse polarities with respect to adjacent magnets. A motor (150) includes impeller magnets (154) on the impeller and coils and poles (158, 162) associated with the stator. Radial permanent magnet and electromagnetic bearings (50, 60) are also included. The magnetic bearings and the motor have stator magnets or coils and poles disposed radially across the fluid passage from corresponding impeller magnets to define an annular gap positioned radially between the impeller and the stator, and positioned radially between all of the plurality of magnetic bearings, creating a straight through blood path without secondary flow paths.
PCT/US2004/031582 2003-09-25 2004-09-27 Axial-flow blood pump with magnetically suspended, radially and axially stabilized impeller WO2005030296A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112004001809T DE112004001809T5 (en) 2003-09-25 2004-09-27 Axial flow blood pump with magnetically suspended, radially and axially stabilized impeller

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US50602303P 2003-09-25 2003-09-25
US60/506,023 2003-09-25
US10/950,176 US7229258B2 (en) 2003-09-25 2004-09-24 Streamlined unobstructed one-pass axial-flow pump
US10/949,884 US7070398B2 (en) 2003-09-25 2004-09-24 Axial-flow blood pump with magnetically suspended, radially and axially stabilized impeller
US10/950,176 2004-09-24
US10/949,884 2004-09-24

Publications (2)

Publication Number Publication Date
WO2005030296A2 WO2005030296A2 (en) 2005-04-07
WO2005030296A3 true WO2005030296A3 (en) 2005-06-23

Family

ID=34397022

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/031582 WO2005030296A2 (en) 2003-09-25 2004-09-27 Axial-flow blood pump with magnetically suspended, radially and axially stabilized impeller

Country Status (2)

Country Link
DE (1) DE112004001809T5 (en)
WO (1) WO2005030296A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100488577C (en) * 2006-02-10 2009-05-20 北京航空航天大学 Outer bearing type artificial heart blood pump
US8237391B2 (en) 2007-07-17 2012-08-07 Brooks Automation, Inc. Substrate processing apparatus with motors integral to chamber walls
US8267636B2 (en) 2007-05-08 2012-09-18 Brooks Automation, Inc. Substrate transport apparatus
US8283813B2 (en) 2007-06-27 2012-10-09 Brooks Automation, Inc. Robot drive with magnetic spindle bearings
US8803513B2 (en) 2007-06-27 2014-08-12 Brooks Automation, Inc. Multiple dimension position sensor

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8419609B2 (en) 2005-10-05 2013-04-16 Heartware Inc. Impeller for a rotary ventricular assist device
US7834618B2 (en) 2007-06-27 2010-11-16 Brooks Automation, Inc. Position sensor system
US8823294B2 (en) 2007-06-27 2014-09-02 Brooks Automation, Inc. Commutation of an electromagnetic propulsion and guidance system
US9752615B2 (en) 2007-06-27 2017-09-05 Brooks Automation, Inc. Reduced-complexity self-bearing brushless DC motor
ATE491483T1 (en) 2007-10-08 2011-01-15 Ais Gmbh Aachen Innovative Solutions CATHETER DEVICE
US8489190B2 (en) 2007-10-08 2013-07-16 Ais Gmbh Aachen Innovative Solutions Catheter device
US8439859B2 (en) 2007-10-08 2013-05-14 Ais Gmbh Aachen Innovative Solutions Catheter device
EP2319552B1 (en) 2009-11-06 2014-01-08 Berlin Heart GmbH Blood pump
US20120134832A1 (en) 2010-10-18 2012-05-31 World Heart Corporation Blood pump with splitter impeller blades and splitter stator vanes and related methods
CN102743801A (en) * 2011-04-19 2012-10-24 薛恒春 Magnetic fluid suspension type axial blood pump without shaft ends
CN103635210A (en) * 2011-05-05 2014-03-12 柏林心脏有限公司 Blood pump
EP4186557A1 (en) 2012-07-03 2023-05-31 Tc1 Llc Motor assembly for catheter pump
US9421311B2 (en) 2012-07-03 2016-08-23 Thoratec Corporation Motor assembly for catheter pump
DE102013008089A1 (en) 2013-05-10 2014-11-13 Jan Wilbert Magnetically driven pumping system with wear-free magnetically mounted impeller
US10111994B2 (en) 2013-05-14 2018-10-30 Heartware, Inc. Blood pump with separate mixed-flow and axial-flow impeller stages and multi-stage stators
GB201311494D0 (en) * 2013-06-27 2013-08-14 Univ Oslo Hf Monitoring of a cardiac assist device
US10350341B2 (en) 2015-03-20 2019-07-16 Drexel University Impellers, blood pumps, and methods of treating a subject
DE102015222199A1 (en) * 2015-11-11 2017-05-11 Robert Bosch Gmbh Cardiac assist pump, method of operating a cardiac assist pump and controller
US10441693B2 (en) * 2016-04-01 2019-10-15 Heartware, Inc. Axial flow blood pump with radially offset rotor
CN105709287A (en) * 2016-04-12 2016-06-29 上海理工大学 Electromagnetic coil driving type blood pump system
EP3651822B1 (en) * 2017-07-13 2022-03-30 Heartware, Inc. Hvad circadian tracker (phi+)
US10561774B2 (en) 2017-07-13 2020-02-18 Heartware, Inc. HVAD circadian tracker (PHI+)
CN107261231B (en) * 2017-07-25 2019-10-22 中国医学科学院阜外医院 A kind of Axial feedback control magnetic levitation axial flow blood pump
CN109420207B (en) 2017-08-29 2024-02-20 航天泰心科技有限公司 Blood pump device
WO2019112825A1 (en) * 2017-12-05 2019-06-13 Heartware, Inc. Blood pump with impeller rinse operation
WO2019178173A1 (en) * 2018-03-14 2019-09-19 The Cleveland Clinic Foundation Blood pump with magnetically loaded partial arc journal bearings
EP3858399A1 (en) * 2020-01-31 2021-08-04 ECP Entwicklungsgesellschaft mbH Intravascular blood pump
CN114392476B (en) * 2022-01-17 2024-02-06 上海炫脉医疗科技有限公司 High-temperature superconductive magnetic suspension axial flow type blood pump
CN115282468B (en) * 2022-08-03 2024-09-24 上海炫脉医疗科技有限公司 Intervention type blood pump

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5507629A (en) * 1994-06-17 1996-04-16 Jarvik; Robert Artificial hearts with permanent magnet bearings
US5928131A (en) * 1997-11-26 1999-07-27 Vascor, Inc. Magnetically suspended fluid pump and control system
US6015272A (en) * 1996-06-26 2000-01-18 University Of Pittsburgh Magnetically suspended miniature fluid pump and method of designing the same
US6234772B1 (en) * 1999-04-28 2001-05-22 Kriton Medical, Inc. Rotary blood pump

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5507629A (en) * 1994-06-17 1996-04-16 Jarvik; Robert Artificial hearts with permanent magnet bearings
US6015272A (en) * 1996-06-26 2000-01-18 University Of Pittsburgh Magnetically suspended miniature fluid pump and method of designing the same
US5928131A (en) * 1997-11-26 1999-07-27 Vascor, Inc. Magnetically suspended fluid pump and control system
US6234772B1 (en) * 1999-04-28 2001-05-22 Kriton Medical, Inc. Rotary blood pump

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100488577C (en) * 2006-02-10 2009-05-20 北京航空航天大学 Outer bearing type artificial heart blood pump
US8267636B2 (en) 2007-05-08 2012-09-18 Brooks Automation, Inc. Substrate transport apparatus
US8283813B2 (en) 2007-06-27 2012-10-09 Brooks Automation, Inc. Robot drive with magnetic spindle bearings
US8803513B2 (en) 2007-06-27 2014-08-12 Brooks Automation, Inc. Multiple dimension position sensor
US9024488B2 (en) 2007-06-27 2015-05-05 Brooks Automation, Inc. Robot drive with magnetic spindle bearings
US8237391B2 (en) 2007-07-17 2012-08-07 Brooks Automation, Inc. Substrate processing apparatus with motors integral to chamber walls
US8680803B2 (en) 2007-07-17 2014-03-25 Brooks Automation, Inc. Substrate processing apparatus with motors integral to chamber walls

Also Published As

Publication number Publication date
DE112004001809T5 (en) 2006-11-23
WO2005030296A2 (en) 2005-04-07

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