AT255685T - Liquid pump with a magnetically suspended-impeller - Google Patents

Liquid pump with a magnetically suspended-impeller

Info

Publication number
AT255685T
AT255685T AT00128516T AT00128516T AT255685T AT 255685 T AT255685 T AT 255685T AT 00128516 T AT00128516 T AT 00128516T AT 00128516 T AT00128516 T AT 00128516T AT 255685 T AT255685 T AT 255685T
Authority
AT
Austria
Prior art keywords
impeller
liquid pump
magnetically suspended
magnetically
suspended
Prior art date
Application number
AT00128516T
Other languages
German (de)
Inventor
Takayoshi Ozaki
Minoru Suzuki
Original Assignee
Terumo Corp
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 to JP37095499A priority Critical patent/JP4612926B2/en
Priority to JP37095399A priority patent/JP4612925B2/en
Application filed by Terumo Corp filed Critical Terumo Corp
Publication of AT255685T publication Critical patent/AT255685T/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00Details, component parts, or accessories
    • F04D29/04Shafts or bearings, or assemblies thereof
    • F04D29/046Bearings
    • F04D29/048Bearings magnetic; electromagnetic
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
    • A61M1/1029Drive systems therefor
    • A61M1/1031Drive systems therefor using a motor with canned rotor, i.e. a motor enclosed within a casing along with the rotor so that the motor bearings are lubricated by the blood that is being pumped
    • A61M1/1036Drive systems therefor using a motor with canned rotor, i.e. a motor enclosed within a casing along with the rotor so that the motor bearings are lubricated by the blood that is being pumped using rotating magnets for driving
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/021Units comprising pumps and their driving means containing a coupling
    • F04D13/024Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/026Details of the bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/021Units comprising pumps and their driving means containing a coupling
    • F04D13/024Units comprising pumps and their driving means containing a coupling a magnetic coupling
    • F04D13/027Details of the magnetic circuit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00Pumping installations or systems
    • F04D13/02Units comprising pumps and their driving means
    • F04D13/06Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0666Units comprising pumps and their driving means the pump being electrically driven the motor being of the plane gap type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00Bearings not otherwise provided for
    • F16C32/04Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406Magnetic bearings
    • F16C32/044Active magnetic bearings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
    • A61M1/1012Constructional features thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/101Non-positive displacement pumps, e.g. impeller, centrifugal, vane pumps
    • A61M1/1012Constructional features thereof
    • A61M1/1013Types of bearings
    • A61M1/1015Magnetic bearings
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/1086Regulating or controlling systems therefor
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES 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
    • A61M1/00Suction or pumping devices for medical purposes; Devices for carrying-off, for treatment of, or for carrying-over, body-liquids; Drainage systems
    • A61M1/10Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps
    • A61M1/12Blood pumps; Artificial hearts; Devices for mechanical circulatory assistance, e.g. intra-aortic balloon pumps implantable into the body
    • A61M1/122Heart assist devices, i.e. for assisting an ailing heart, using additional pumping means in the blood circuit
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2316/00Apparatus in health or amusement
    • F16C2316/10Apparatus in health or amusement in medical appliances, e.g. in diagnosis, dentistry, instruments, prostheses, medical imaging appliances
    • F16C2316/18Pumps for pumping blood
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2360/00Engines or pumps
    • F16C2360/44Centrifugal pumps
AT00128516T 1999-12-27 2000-12-27 Liquid pump with a magnetically suspended-impeller AT255685T (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP37095499A JP4612926B2 (en) 1999-12-27 1999-12-27 Magnetic levitation type pump
JP37095399A JP4612925B2 (en) 1999-12-27 1999-12-27 Magnetic levitation type pump

Publications (1)

Publication Number Publication Date
AT255685T true AT255685T (en) 2003-12-15

Family

ID=26582273

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00128516T AT255685T (en) 1999-12-27 2000-12-27 Liquid pump with a magnetically suspended-impeller

Country Status (4)

Country Link
US (1) US6575717B2 (en)
EP (1) EP1113177B1 (en)
AT (1) AT255685T (en)
DE (1) DE60006926T2 (en)

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US7128538B2 (en) * 2003-07-07 2006-10-31 Terumo Corporation Centrifugal fluid pump apparatus
US7416525B2 (en) 2003-09-18 2008-08-26 Myrakelle, Llc Rotary blood pump
EP1668764B1 (en) * 2003-10-03 2008-08-27 Foster-Miller, Inc. Rotary pump with electromagnetic lcr bearing
US7249571B2 (en) * 2003-10-09 2007-07-31 Mag-Life Llc Aquarium having improved filtration system
US8513848B2 (en) * 2003-10-09 2013-08-20 Mag Life, Llc Aquarium having improved filtration system with neutral buoyancy substrate, pump and sediment removal system
EP1598087B1 (en) * 2004-03-24 2010-02-03 Terumo Kabushiki Kaisha blood pump with hydrodynamic bearing
US20060083642A1 (en) 2004-10-18 2006-04-20 Cook Martin C Rotor stability of a rotary pump
US20060275155A1 (en) * 2005-01-28 2006-12-07 Robert Thibodeau Rotational apparatus
EP1859166B1 (en) 2005-03-16 2016-01-13 Ecotech Marine, LLC Bracketless magnetic pump
KR101286626B1 (en) 2005-08-25 2013-07-15 엔티엔 가부시키가이샤 Turbine unit for refrigerating/cooling air cycle
US20070177995A1 (en) * 2006-02-01 2007-08-02 Yoshio Yano Pump device
US20070183908A1 (en) * 2006-02-06 2007-08-09 Yoshio Yano Contactless centrifugal pump
US20070224059A1 (en) * 2006-03-23 2007-09-27 Cheng-Tien Lai Miniature pump for liquid cooling system
US9044535B2 (en) 2007-08-07 2015-06-02 Terumo Cardiovascular Systems Corp. Extracorporeal blood pump with disposable pump head portion having magnetically levitated impeller
US20090254178A1 (en) * 2008-04-07 2009-10-08 Dow Glendal R Heart Booster Pump With Magnetic Drive
EP2405140B1 (en) * 2009-03-06 2016-10-19 Thoratec Corporation Centrifugal pump device
US20110070811A1 (en) * 2009-03-25 2011-03-24 Applied Materials, Inc. Point of use recycling system for cmp slurry
US8632449B2 (en) 2009-04-16 2014-01-21 Bivacor Pty Ltd Heart pump controller
CN102458498B (en) 2009-04-16 2015-06-10 毕瓦克私人有限公司 Heart pump controller
US9782527B2 (en) 2009-05-27 2017-10-10 Tc1 Llc Monitoring of redundant conductors
US8562508B2 (en) 2009-12-30 2013-10-22 Thoratec Corporation Mobility-enhancing blood pump system
CA2802215A1 (en) 2010-06-22 2011-12-29 Thoratec Corporation Apparatus and method for modifying pressure-flow characteristics of a pump
TW201212959A (en) 2010-06-22 2012-04-01 Thoratec Corp Fluid delivery system and method for monitoring fluid delivery system
WO2012012552A1 (en) 2010-07-22 2012-01-26 Thoratec Corporation Controlling implanted blood pumps
EP2605809B1 (en) 2010-08-20 2017-10-11 Tc1 Llc Implantable blood pump
US20120045352A1 (en) * 2010-08-23 2012-02-23 Justin Lawyer Pump and pump assembly
JP5577506B2 (en) 2010-09-14 2014-08-27 ソーラテック コーポレイション Centrifugal pump device
EP2618863B1 (en) 2010-09-24 2016-11-09 Thoratec Corporation Generating artificial pulse
US9227001B2 (en) 2010-10-07 2016-01-05 Everheart Systems Inc. High efficiency blood pump
US9496924B2 (en) 2010-12-10 2016-11-15 Everheart Systems, Inc. Mobile wireless power system
US8901775B2 (en) 2010-12-10 2014-12-02 Everheart Systems, Inc. Implantable wireless power system
JP5969979B2 (en) 2011-03-28 2016-08-17 ソーラテック コーポレイション Rotary drive and a centrifugal pump apparatus using the same
EP2890417A4 (en) 2012-08-31 2016-04-27 Thoratec Corp Hall sensor mounting in an implantable blood pump
US9427510B2 (en) 2012-08-31 2016-08-30 Thoratec Corporation Start-up algorithm for an implantable blood pump
WO2018223060A1 (en) * 2017-06-01 2018-12-06 Queen Mary University Of London Mechanical circulatory support device with centrifugal impeller designed for implantation in the descending aorta
US9371826B2 (en) 2013-01-24 2016-06-21 Thoratec Corporation Impeller position compensation using field oriented control
US9556873B2 (en) 2013-02-27 2017-01-31 Tc1 Llc Startup sequence for centrifugal pump with levitated impeller
US10294944B2 (en) 2013-03-08 2019-05-21 Everheart Systems Inc. Flow thru mechanical blood pump bearings
US9127680B2 (en) * 2013-04-05 2015-09-08 Thoratec Corporation Verification of magnetic balance for magnetically levitated impeller
US10052420B2 (en) 2013-04-30 2018-08-21 Tc1 Llc Heart beat identification and pump speed synchronization
DE102013008089A1 (en) 2013-05-10 2014-11-13 Jan Wilbert Magnetically driven pump system with wear-free magnetically stored impeller
CN106456853B (en) 2014-04-15 2019-04-23 Tc1有限责任公司 For controlling the method and system of blood pump
EP3131602A4 (en) 2014-04-15 2017-11-29 Tc1 Llc Ventricular assist devices
US9744280B2 (en) 2014-04-15 2017-08-29 Tc1 Llc Methods for LVAD operation during communication losses
WO2015160994A1 (en) 2014-04-15 2015-10-22 Thoratec Corporation Methods and systems for upgrading ventricle assist devices
EP3131600A4 (en) 2014-04-15 2018-01-17 Tc1 Llc Methods and systems for providing battery feedback to patient
US9623161B2 (en) 2014-08-26 2017-04-18 Tc1 Llc Blood pump and method of suction detection
WO2016130944A1 (en) 2015-02-12 2016-08-18 Thoratec Corporation System and method for controlling the position of a levitated rotor
US10245361B2 (en) 2015-02-13 2019-04-02 Tc1 Llc Impeller suspension mechanism for heart pump
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Also Published As

Publication number Publication date
DE60006926T2 (en) 2004-06-17
EP1113177A3 (en) 2002-05-08
DE60006926D1 (en) 2004-01-15
US20010016170A1 (en) 2001-08-23
EP1113177B1 (en) 2003-12-03
US6575717B2 (en) 2003-06-10
EP1113177A2 (en) 2001-07-04

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties