EP0897477A4 - Electromagnetically suspended and rotated centrifugal pumping apparatus and method - Google Patents

Electromagnetically suspended and rotated centrifugal pumping apparatus and method

Info

Publication number
EP0897477A4
EP0897477A4 EP97923548A EP97923548A EP0897477A4 EP 0897477 A4 EP0897477 A4 EP 0897477A4 EP 97923548 A EP97923548 A EP 97923548A EP 97923548 A EP97923548 A EP 97923548A EP 0897477 A4 EP0897477 A4 EP 0897477A4
Authority
EP
European Patent Office
Prior art keywords
pump
fluid
pump housing
integral
pumping apparatus
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.)
Withdrawn
Application number
EP97923548A
Other languages
German (de)
French (fr)
Other versions
EP0897477A1 (en
Inventor
Pratap S Khanwilkar
Paul E Allaire
Gill Brent Bearnson
Don B Olsen
Eric H Maslen
James W Long
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Utah Research Foundation UURF
Medquest Products Inc
University of Virginia Patent Foundation
Original Assignee
University of Utah
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
Application filed by University of Utah filed Critical University of Utah
Publication of EP0897477A1 publication Critical patent/EP0897477A1/en
Publication of EP0897477A4 publication Critical patent/EP0897477A4/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/06—Control using electricity
    • 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
    • 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
    • A61M60/226—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 radial components
    • A61M60/232—Centrifugal 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
    • A61M60/419—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
    • 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
    • A61M60/50—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
    • 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
    • A61M60/562—Electronic control means, e.g. for feedback regulation for making blood flow pulsatile in blood pumps that do not intrinsically create pulsatile flow
    • 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
    • A61M60/818—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
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0646—Units comprising pumps and their driving means the pump being electrically driven the hollow pump or motor shaft being the conduit for the working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0444—Details of devices to control the actuation of the electromagnets
    • F16C32/0446—Determination of the actual position of the moving member, e.g. details of sensors
    • F16C32/0448—Determination of the actual position of the moving member, e.g. details of sensors by using the electromagnet itself as sensor, e.g. sensorless 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
    • A61M2205/00—General characteristics of the apparatus
    • A61M2205/33—Controlling, regulating or measuring
    • A61M2205/3331—Pressure; Flow
    • A61M2205/3334—Measuring or controlling the flow rate
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/50—Bearings
    • F05B2240/51—Bearings magnetic
    • F05B2240/515—Bearings magnetic electromagnetic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2316/00—Apparatus in health or amusement
    • F16C2316/10—Apparatus in health or amusement in medical appliances, e.g. in diagnosis, dentistry, instruments, prostheses, medical imaging appliances
    • F16C2316/18—Pumps for pumping blood
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00—Engines or pumps
    • F16C2360/44—Centrifugal pumps

Abstract

An apparatus and method for a centrifugal pump (10) for pumping sensitive biological fluid which includes (i) an integral impeller and rotor (21) which is entirely supported and rotated magnetically by electromagnets (52, 54), (ii) a pump housing and arcuate passages (32, 34, 36) for fluid flow and containment, (iii) a brushless driving motor (40) embedded and integral with the pump housing, (iv) a power supply, and (v) specific electronic sensing and control algorithms -- all fitly jointed together to provide efficient, durable and low maintenance pump operation. A specially designed impeller and pump housing provide the mechanism for transport and delivery of fluid through the pump to a pump output port with reduced fluid turbulence.
EP97923548A 1996-05-03 1997-05-05 Electromagnetically suspended and rotated centrifugal pumping apparatus and method Withdrawn EP0897477A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US1685796P 1996-05-03 1996-05-03
US16857P 1996-05-03
PCT/US1997/007567 WO1997042414A1 (en) 1996-05-03 1997-05-05 Electromagnetically suspended and rotated centrifugal pumping apparatus and method

Publications (2)

Publication Number Publication Date
EP0897477A1 EP0897477A1 (en) 1999-02-24
EP0897477A4 true EP0897477A4 (en) 2001-05-16

Family

ID=21779369

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97923548A Withdrawn EP0897477A4 (en) 1996-05-03 1997-05-05 Electromagnetically suspended and rotated centrifugal pumping apparatus and method

Country Status (8)

Country Link
EP (1) EP0897477A4 (en)
JP (1) JP2000510929A (en)
KR (1) KR20000010736A (en)
CN (1) CN1228140A (en)
AU (1) AU722998B2 (en)
BR (1) BR9709305A (en)
CA (1) CA2253666A1 (en)
WO (1) WO1997042414A1 (en)

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US6293901B1 (en) 1997-11-26 2001-09-25 Vascor, Inc. Magnetically suspended fluid pump and control system
US5928131A (en) 1997-11-26 1999-07-27 Vascor, Inc. Magnetically suspended fluid pump and control system
PL195898B1 (en) * 1998-01-27 2007-11-30 Hydroring Bv Machine in particular an electric one, especially that for converting energy of flowing liquids and gases into electric power
JP3689567B2 (en) * 1998-09-29 2005-08-31 京セラ株式会社 Centrifugal blood pump
SE9804317D0 (en) * 1998-12-15 1998-12-15 Gunnar Bjoerk pulse Pump
EP1013294B1 (en) * 1998-12-16 2007-04-18 Levitronix LLC Diagonal flux pump
CN1181274C (en) * 2002-06-06 2004-12-22 陈昌奎 Liquid-type power transmission mechanism
CA2662060A1 (en) 2006-08-31 2008-03-06 Smartin Technologies, Llc Modular magneto mechanical device
US9662431B2 (en) 2010-02-17 2017-05-30 Flow Forward Medical, Inc. Blood pump systems and methods
WO2011103356A1 (en) 2010-02-17 2011-08-25 Novita Therapeutics, Llc System and method to increase the overall diameter of veins
US9555174B2 (en) 2010-02-17 2017-01-31 Flow Forward Medical, Inc. Blood pump systems and methods
JP5977237B2 (en) * 2010-08-20 2016-08-24 ソーラテック コーポレイション Implantable blood pump
EP2549113B1 (en) * 2011-07-20 2018-10-24 Levitronix GmbH Magnetic rotor and rotation pump with a magnetic rotor
KR102215188B1 (en) 2011-08-17 2021-02-17 아르티오 메디컬 인크. Blood pump systems and methods
RU2664156C2 (en) 2011-08-17 2018-08-15 Флоу Форвард Медикал, Инк., Сша System and method for increase of outer diameter of viens and arteries
US10258730B2 (en) 2012-08-17 2019-04-16 Flow Forward Medical, Inc. Blood pump systems and methods
EP2865397A1 (en) 2013-10-22 2015-04-29 Berlin Heart GmbH Method for operating a pump device and pump device
CN104307063B (en) * 2014-10-17 2017-01-18 山东科技大学 Magnetic resistance suspension centrifugal type device
WO2017120453A1 (en) 2016-01-06 2017-07-13 Bivacor Inc. Heart pump with impeller axial position control
WO2017190155A2 (en) 2016-04-29 2017-11-02 Flow Forward Medical, Inc. Conduit tips and systems and methods for use
CN105909563A (en) * 2016-07-12 2016-08-31 合肥新沪屏蔽泵有限公司 Pump body of shield pump
CN106860929B (en) * 2017-01-16 2019-02-01 哈尔滨理工大学 A kind of blood pump for magnetic liquid coupling suspension type impeller displacement measurement
WO2018187576A2 (en) 2017-04-05 2018-10-11 Bivacor Inc. Heart pump drive and bearing
CN107100855B (en) * 2017-06-05 2019-02-05 兰州理工大学 A kind of solid-liquid two-phase flow pump
CN107715203A (en) * 2017-09-18 2018-02-23 上海交通大学医学院附属上海儿童医学中心 A kind of single fulcrum magnetomotive drive-type centrifugal pump
CN108194374B (en) * 2017-12-29 2020-02-07 李少龙 Magnetic suspension internal flow type rotor pipeline pump
EP3737435B1 (en) 2018-01-10 2023-10-18 Tc1 Llc Bearingless implantable blood pump
EP3795836A1 (en) * 2019-09-18 2021-03-24 Levitronix GmbH Centrifugal pump and pump housing
CN110947040A (en) * 2019-12-18 2020-04-03 山东大学 Extracorporeal circulation blood pump and method
CN112121249B (en) * 2020-10-21 2022-07-01 山东大学 In-vitro centrifugal magnetic suspension artificial heart pump and use method
CN113771303B (en) * 2021-11-10 2022-02-08 东营品航精密模具有限公司 Full-automatic impeller mould
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No further relevant documents disclosed *

Also Published As

Publication number Publication date
WO1997042414A1 (en) 1997-11-13
AU722998B2 (en) 2000-08-17
JP2000510929A (en) 2000-08-22
CN1228140A (en) 1999-09-08
AU2932497A (en) 1997-11-26
BR9709305A (en) 1999-08-10
CA2253666A1 (en) 1997-11-13
EP0897477A1 (en) 1999-02-24
KR20000010736A (en) 2000-02-25

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