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IT1302877B1 - Pompa per fluido a sospensione magnetica e relativo sistema dicontrollo, in particolare per applicazioni cardiache. - Google Patents

Pompa per fluido a sospensione magnetica e relativo sistema dicontrollo, in particolare per applicazioni cardiache.

Info

Publication number
IT1302877B1
IT1302877B1 IT1998RM000721A ITRM980721A IT1302877B1 IT 1302877 B1 IT1302877 B1 IT 1302877B1 IT 1998RM000721 A IT1998RM000721 A IT 1998RM000721A IT RM980721 A ITRM980721 A IT RM980721A IT 1302877 B1 IT1302877 B1 IT 1302877B1
Authority
IT
Italy
Prior art keywords
rotor
flow rate
blood
ventricle
rate controller
Prior art date
Application number
IT1998RM000721A
Other languages
English (en)
Inventor
Edward K Prem
Original Assignee
Vascor Inc
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 Vascor Inc filed Critical Vascor Inc
Publication of ITRM980721A1 publication Critical patent/ITRM980721A1/it
Application granted granted Critical
Publication of IT1302877B1 publication Critical patent/IT1302877B1/it

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
    • A61M60/10—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]
    • 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
    • A61M60/422—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
    • A61M60/515—Regulation using real-time patient data
    • 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
    • A61M60/80—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
    • A61M60/812—Vanes or blades, e.g. static flow guides
    • 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
    • A61M60/814—Volutes
    • 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
    • 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
    • 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
    • A61M60/833—Occluders for preventing backflow
    • 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
    • A61M60/89—Valves
    • A61M60/892—Active valves, i.e. actuated by an external force
    • 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
    • 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
    • F16C32/047—Details of housings; Mounting of active 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
    • A61M60/10—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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Mechanical Engineering (AREA)
  • Cardiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Medical Informatics (AREA)
  • Vascular Medicine (AREA)
  • Fluid Mechanics (AREA)
  • External Artificial Organs (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Electrotherapy Devices (AREA)
IT1998RM000721A 1997-11-26 1998-11-25 Pompa per fluido a sospensione magnetica e relativo sistema dicontrollo, in particolare per applicazioni cardiache. IT1302877B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/978,670 US5928131A (en) 1997-11-26 1997-11-26 Magnetically suspended fluid pump and control system

Publications (2)

Publication Number Publication Date
ITRM980721A1 ITRM980721A1 (it) 2000-05-25
IT1302877B1 true IT1302877B1 (it) 2000-10-10

Family

ID=25526302

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1998RM000721A IT1302877B1 (it) 1997-11-26 1998-11-25 Pompa per fluido a sospensione magnetica e relativo sistema dicontrollo, in particolare per applicazioni cardiache.

Country Status (8)

Country Link
US (4) US5928131A (it)
JP (1) JP3182402B2 (it)
CA (1) CA2251322C (it)
DE (1) DE19854724A1 (it)
FR (3) FR2771295B1 (it)
GB (1) GB2335146B (it)
IT (1) IT1302877B1 (it)
NL (1) NL1010651C2 (it)

Families Citing this family (147)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6494918B1 (en) 2000-01-30 2002-12-17 Diamicron, Inc. Component for a prosthetic joint having a diamond load bearing and articulation surface
US6517583B1 (en) 2000-01-30 2003-02-11 Diamicron, Inc. Prosthetic hip joint having a polycrystalline diamond compact articulation surface and a counter bearing surface
US7396505B2 (en) 1994-08-12 2008-07-08 Diamicron, Inc. Use of CoCrMo to augment biocompatibility in polycrystalline diamond compacts
US6514289B1 (en) 2000-01-30 2003-02-04 Diamicron, Inc. Diamond articulation surface for use in a prosthetic joint
US7396501B2 (en) 1994-08-12 2008-07-08 Diamicron, Inc. Use of gradient layers and stress modifiers to fabricate composite constructs
US6425922B1 (en) 2000-01-30 2002-07-30 Diamicron, Inc. Prosthetic hip joint having at least one sintered polycrystalline diamond compact articulation surface
US7494507B2 (en) 2000-01-30 2009-02-24 Diamicron, Inc. Articulating diamond-surfaced spinal implants
US6596225B1 (en) 2000-01-31 2003-07-22 Diamicron, Inc. Methods for manufacturing a diamond prosthetic joint component
US6793681B1 (en) 1994-08-12 2004-09-21 Diamicron, Inc. Prosthetic hip joint having a polycrystalline diamond articulation surface and a plurality of substrate layers
US6676704B1 (en) 1994-08-12 2004-01-13 Diamicron, Inc. Prosthetic joint component having at least one sintered polycrystalline diamond compact articulation surface and substrate surface topographical features in said polycrystalline diamond compact
EP0900572B1 (de) * 1997-09-04 2005-01-12 Levitronix LLC Zentrifugalpumpe
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
US6398524B1 (en) * 1997-12-02 2002-06-04 Ebara Corporation Magnetic bearing control device and turbo-molecular pump device
US6158984A (en) * 1998-12-28 2000-12-12 Kriton Medical, Inc. Rotary blood pump with ceramic members
GB2365346B (en) * 1999-02-09 2003-03-12 Vascor Inc Magnetically suspended fluid pump
NL1022038C2 (nl) * 1999-02-09 2003-07-25 Vascor Inc Bloedpomp met magnetisch opgehangen stator- en rotorelement met een eerste en tweede magneet-array.
US6742999B1 (en) * 1999-04-20 2004-06-01 Berlin Heart Ag Device for delivering single-phase or multiphase fluids without altering the properties thereof
AU4601500A (en) 1999-05-18 2000-12-05 Sonometrics Corporation System for incorporating sonomicrometer functions into medical instruments and implantable biomedical devices
CA2374656A1 (en) * 1999-06-03 2000-12-14 Michael P. Goldowsky Magnetic suspension blood pump
US6254361B1 (en) * 1999-07-29 2001-07-03 Itt Manufacturing Enterprises, Inc. Shaftless canned rotor inline pipe pump
US6227817B1 (en) * 1999-09-03 2001-05-08 Magnetic Moments, Llc Magnetically-suspended centrifugal blood pump
US6227820B1 (en) * 1999-10-05 2001-05-08 Robert Jarvik Axial force null position magnetic bearing and rotary blood pumps which use them
US6440059B1 (en) 1999-10-14 2002-08-27 Cimex Biotech Lc Magnetohydrodynamic cardiac assist device
US6709463B1 (en) 2000-01-30 2004-03-23 Diamicron, Inc. Prosthetic joint component having at least one solid polycrystalline diamond component
US6527699B1 (en) * 2000-06-02 2003-03-04 Michael P. Goldowsky Magnetic suspension blood pump
GB2363864B (en) * 2000-06-23 2004-08-18 Rolls Royce Plc A control arrangement
JP4721498B2 (ja) * 2000-09-25 2011-07-13 株式会社鶴見製作所 ポンプ運転時における一枚羽根のオープン羽根車のバランス保持方法および装置
DE10108815B4 (de) * 2001-02-16 2006-03-16 Berlin Heart Ag Vorrichtung zur axialen Förderung von Körperflüssigkeiten
US20030023131A1 (en) * 2001-06-06 2003-01-30 Antaki James F. Apparatus and method for reducing heart pump backflow
US6717311B2 (en) * 2001-06-14 2004-04-06 Mohawk Innovative Technology, Inc. Combination magnetic radial and thrust bearing
WO2003001980A2 (en) * 2001-06-29 2003-01-09 Medquest Products,Inc. Cannulation apparatus and method
US8292908B2 (en) * 2001-06-29 2012-10-23 World Heart Corporation Endoscopic cannulation apparatus and method
US20040189123A1 (en) * 2001-08-24 2004-09-30 Peter Nusser Magnetically hard object and method for adjusting the direction and position of a magnetic vector
US20050027323A1 (en) * 2001-10-30 2005-02-03 Medtronic, Inc. Implantable medical device for monitoring cardiac blood pressure and chamber dimension
US6795732B2 (en) * 2001-10-30 2004-09-21 Medtronic, Inc. Implantable medical device employing sonomicrometer output signals for detection and measurement of cardiac mechanical function
US6641378B2 (en) * 2001-11-13 2003-11-04 William D. Davis Pump with electrodynamically supported impeller
US20030144574A1 (en) 2001-12-19 2003-07-31 Heilman Marlin S. Method and apparatus for providing limited back-flow in a blood pump during a non-pumping state
US20030144573A1 (en) 2001-12-19 2003-07-31 Heilman Marlin S. Back-flow limiting valve member
US6716157B2 (en) * 2002-02-28 2004-04-06 Michael P. Goldowsky Magnetic suspension blood pump
CA2374989A1 (en) * 2002-03-08 2003-09-08 Andre Garon Ventricular assist device comprising a dual inlet hybrid flow blood pump
US7338521B2 (en) * 2002-06-13 2008-03-04 World Heart, Inc. Low profile inlet for an implantable blood pump
WO2004013504A1 (ja) * 2002-08-02 2004-02-12 Koyo Seiko Co., Ltd. 超電導磁気軸受
US7258679B2 (en) * 2002-08-09 2007-08-21 Vascor, Inc. Inflow conduit for ventricular assist device
US6949066B2 (en) * 2002-08-21 2005-09-27 World Heart Corporation Rotary blood pump diagnostics and cardiac output controller
US20040106954A1 (en) * 2002-11-15 2004-06-03 Whitehurst Todd K. Treatment of congestive heart failure
JP2004204826A (ja) * 2002-12-26 2004-07-22 Sony Corp 動圧軸受型ポンプ
EP1457681A1 (de) * 2003-03-10 2004-09-15 Carsten Kühn Pumpe
AU2003241444A1 (en) * 2003-05-15 2005-01-21 William Davis Pump with magnetic bearings
US7052253B2 (en) * 2003-05-19 2006-05-30 Advanced Bionics, Inc. Seal and bearing-free fluid pump incorporating a passively suspended self-positioning impeller
US7097070B2 (en) * 2003-08-15 2006-08-29 Protedyne Corporation Method and apparatus for handling small volume fluid samples
US7416525B2 (en) 2003-09-18 2008-08-26 Myrakelle, Llc Rotary blood pump
US7229258B2 (en) * 2003-09-25 2007-06-12 Medforte Research Foundation Streamlined unobstructed one-pass axial-flow pump
US7070398B2 (en) * 2003-09-25 2006-07-04 Medforte Research Foundation Axial-flow blood pump with magnetically suspended, radially and axially stabilized impeller
WO2005030296A2 (en) * 2003-09-25 2005-04-07 Medforte Research Foundation Axial-flow blood pump with magnetically suspended, radially and axially stabilized impeller
DE602004016188D1 (de) * 2003-10-03 2008-10-09 Foster Miller Inc Drehpumpe mit elektromagnetischem lcr-lager
US7588530B2 (en) * 2004-07-19 2009-09-15 Marlin Stephen Heilman Devices, systems and methods for assisting blood flow
DE102004039443B4 (de) * 2004-08-13 2023-05-25 Beijing E-Town Semiconductor Technology, Co., Ltd. Verfahren zum thermischen Behandeln von scheibenförmigen Substraten
ATE520429T1 (de) * 2004-11-16 2011-09-15 Micromed Technology Inc Datenmonitor auf abstand für ein herzpumpensystem
US20060275155A1 (en) * 2005-01-28 2006-12-07 Robert Thibodeau Rotational apparatus
CN100382855C (zh) * 2005-02-02 2008-04-23 北京工业大学 无轴承无电机无轴的全人工心脏血泵
FR2882203B1 (fr) * 2005-02-15 2007-06-22 Levisys Sarl Procede de stabilisation d'un objet en suspension dans un champ magnetique
EP1719916B1 (de) * 2005-05-07 2008-07-23 Grundfos Management A/S Pumpenaggregat
WO2006130487A2 (en) * 2005-05-27 2006-12-07 The Cleveland Clinic Foundation Method and apparatus for eddy current compensation in a radio frequency probe
US8657875B2 (en) * 2005-09-26 2014-02-25 Abiomed, Inc. Method and apparatus for pumping blood
US8764820B2 (en) 2005-11-16 2014-07-01 Edwards Lifesciences Corporation Transapical heart valve delivery system and method
EP3477103B1 (en) 2006-01-13 2022-03-02 HeartWare, Inc. Rotary blood pump
US8672611B2 (en) 2006-01-13 2014-03-18 Heartware, Inc. Stabilizing drive for contactless rotary blood pump impeller
WO2007140481A2 (en) 2006-05-31 2007-12-06 Richard Wampler Heart assist device
DE102007036692A1 (de) * 2006-09-22 2008-03-27 Ebm-Papst St. Georgen Gmbh & Co. Kg Lüfter
AT504990B1 (de) 2007-02-27 2008-12-15 Miracor Medizintechnik Handels Katheter zur unterstützung der leistung eines herzens
EP2292282B1 (en) 2008-06-23 2017-11-15 Thoratec Corporation Blood pump apparatus
JP5571087B2 (ja) 2008-09-26 2014-08-13 ワールドハート インコーポレーテッド 磁気浮上血液ポンプ及び該ポンプの小型化を可能にする最適化方法
CN102239334B (zh) 2008-12-08 2015-03-04 胸腔科技有限公司 离心式泵装置
US8657874B2 (en) 2009-01-07 2014-02-25 Cleveland Clinic Foundation Method for physiologic control of a continuous flow total artificial heart
JP5378010B2 (ja) 2009-03-05 2013-12-25 ソラテック コーポレーション 遠心式ポンプ装置
CN102341600B (zh) 2009-03-06 2014-12-10 胸腔科技有限公司 离心式泵装置
WO2010118476A1 (en) 2009-04-16 2010-10-21 Bivacor Pty Ltd Heart pump controller
EP2419159A4 (en) 2009-04-16 2017-07-19 Bivacor Pty Ltd Heart pump controller
ES2549982T3 (es) * 2009-06-12 2015-11-03 Braun Gmbh Motor eléctrico para un aparato eléctrico pequeño
US8821365B2 (en) 2009-07-29 2014-09-02 Thoratec Corporation Rotation drive device and centrifugal pump apparatus using the same
US8531071B2 (en) * 2009-12-28 2013-09-10 Rolls-Royce Corporation Turbine engine powered system with hybrid bearing
JP5443197B2 (ja) 2010-02-16 2014-03-19 ソラテック コーポレーション 遠心式ポンプ装置
EP2554191B1 (en) 2010-03-26 2019-05-08 Thoratec Corporation Centrifugal blood pump device
JP5681403B2 (ja) 2010-07-12 2015-03-11 ソーラテック コーポレイション 遠心式ポンプ装置
WO2012024493A1 (en) 2010-08-20 2012-02-23 Thoratec Corporation Implantable blood pump
JP5577506B2 (ja) 2010-09-14 2014-08-27 ソーラテック コーポレイション 遠心式ポンプ装置
WO2012051454A2 (en) * 2010-10-13 2012-04-19 Thoratec Corporation Pumping blood
WO2012112378A2 (en) 2011-02-18 2012-08-23 Vascor Inc. Blood flow assist systems
EP2693609B1 (en) 2011-03-28 2017-05-03 Thoratec Corporation Rotation and drive device and centrifugal pump device using same
US9381082B2 (en) 2011-04-22 2016-07-05 Edwards Lifesciences Corporation Devices, systems and methods for accurate positioning of a prosthetic valve
EP2549113B1 (de) * 2011-07-20 2018-10-24 Levitronix GmbH Magnetischer Rotor sowie Rotationspumpe mit einem magnetischen Rotor
EP2570143B1 (de) * 2011-09-14 2014-01-15 BIOTRONIK SE & Co. KG Implantierbares kardiales Therapiergerät
US8864643B2 (en) 2011-10-13 2014-10-21 Thoratec Corporation Pump and method for mixed flow blood pumping
WO2013082053A1 (en) 2011-11-28 2013-06-06 MI-VAD, Inc. Ventricular assist device and method
JP6083929B2 (ja) 2012-01-18 2017-02-22 ソーラテック コーポレイション 遠心式ポンプ装置
EP2822614B1 (en) 2012-03-05 2016-12-28 Thoratec Corporation Modular implantable medical pump
WO2013142121A1 (en) * 2012-03-20 2013-09-26 World Heart Corporation Method and apparatus for sensing of levitated rotor position
CN104379185B (zh) * 2012-05-11 2017-03-29 海德威公司 用于植入式血液泵的银马达定子
WO2014036419A1 (en) 2012-08-31 2014-03-06 Thoratec Corporation Hall sensor mounting in an implantable blood pump
WO2014036410A1 (en) 2012-08-31 2014-03-06 Thoratec Corporation Start-up algorithm for an implantable blood pump
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
US10149757B2 (en) 2013-03-15 2018-12-11 Edwards Lifesciences Corporation System and method for transaortic delivery of a prosthetic heart valve
US9713663B2 (en) 2013-04-30 2017-07-25 Tc1 Llc Cardiac pump with speed adapted for ventricle unloading
US10052420B2 (en) 2013-04-30 2018-08-21 Tc1 Llc Heart beat identification and pump speed synchronization
GB2515766A (en) * 2013-07-02 2015-01-07 David Rodger Reducing bearing forces in an electrical machine
US10426880B2 (en) 2014-02-25 2019-10-01 MI-VAD, Inc. Ventricular assist device and method
US10077777B2 (en) 2014-05-09 2018-09-18 The Cleveland Clinic Foundation Artificial heart system implementing suction recognition and avoidance methods
EP3134033B1 (en) 2014-05-29 2018-04-04 Edwards Lifesciences CardiAQ LLC Prosthesis and delivery device
JP2016044674A (ja) * 2014-08-22 2016-04-04 日本電産株式会社 動圧軸受ポンプ
US9623161B2 (en) 2014-08-26 2017-04-18 Tc1 Llc Blood pump and method of suction detection
US10724534B2 (en) 2014-11-26 2020-07-28 Tc1 Llc Pump and method for mixed flow blood pumping
WO2016130846A1 (en) 2015-02-11 2016-08-18 Thoratec Corporation Heart beat identification and pump speed synchronization
US10371152B2 (en) 2015-02-12 2019-08-06 Tc1 Llc Alternating pump gaps
WO2016130944A1 (en) 2015-02-12 2016-08-18 Thoratec Corporation System and method for controlling the position of a levitated rotor
WO2016130989A1 (en) * 2015-02-13 2016-08-18 Thoratec Corporation Impeller suspension mechanism for heart pump
WO2017015476A1 (en) 2015-07-21 2017-01-26 Thoratec Corporation Cantilevered rotor pump and methods for axial flow blood pumping
ES2841198T3 (es) * 2015-08-04 2021-07-07 Abiomed Europe Gmbh Cojinete de autolavado
EP3165242B1 (en) * 2015-11-05 2019-05-15 ReinHeart GmbH Fluid pump with volute shaped housing
US10117983B2 (en) 2015-11-16 2018-11-06 Tc1 Llc Pressure/flow characteristic modification of a centrifugal pump in a ventricular assist device
AU2017205172B2 (en) 2016-01-06 2022-02-10 Bivacor Inc. Heart pump
CN105641763B (zh) * 2016-04-12 2017-12-01 上海理工大学 分离型电磁耦合血泵系统
WO2018005592A1 (en) * 2016-06-28 2018-01-04 University Of Iowa Research Foundation Medical devices including rotary valve
US10857273B2 (en) 2016-07-21 2020-12-08 Tc1 Llc Rotary seal for cantilevered rotor pump and methods for axial flow blood pumping
US10660998B2 (en) 2016-08-12 2020-05-26 Tci Llc Devices and methods for monitoring bearing and seal performance
CN110709114B (zh) 2017-04-05 2023-10-31 毕瓦克公司 心脏泵驱动器和轴承
CN107939699B (zh) * 2017-12-04 2023-12-26 南京磁谷科技股份有限公司 一种磁悬浮压缩机结构
WO2019139686A1 (en) 2018-01-10 2019-07-18 Tc1 Llc Bearingless implantable blood pump
DE102018201030A1 (de) 2018-01-24 2019-07-25 Kardion Gmbh Magnetkuppelelement mit magnetischer Lagerungsfunktion
EP3746146A1 (en) 2018-01-31 2020-12-09 Heartware, Inc. Axial blood pump with impeller rinse operation
WO2019217426A1 (en) * 2018-05-10 2019-11-14 Heartware, Inc. Axial pump pressure algorithm with field oriented control
DE102018207575A1 (de) 2018-05-16 2019-11-21 Kardion Gmbh Magnetische Stirndreh-Kupplung zur Übertragung von Drehmomenten
DE102018207611A1 (de) 2018-05-16 2019-11-21 Kardion Gmbh Rotorlagerungssystem
DE102018208541A1 (de) 2018-05-30 2019-12-05 Kardion Gmbh Axialpumpe für ein Herzunterstützungssystem und Verfahren zum Herstellen einer Axialpumpe für ein Herzunterstützungssystem
DE102018208538A1 (de) 2018-05-30 2019-12-05 Kardion Gmbh Intravasale Blutpumpe und Verfahren zur Herstellung von elektrischen Leiterbahnen
DE102018208550A1 (de) 2018-05-30 2019-12-05 Kardion Gmbh Leitungsvorrichtung zum Leiten eines Blutstroms für ein Herzunterstützungssystem, Herzunterstützungssystem und Verfahren zum Herstellen einer Leitungsvorrichtung
DE102018210076A1 (de) 2018-06-21 2019-12-24 Kardion Gmbh Verfahren und Vorrichtung zum Erkennen eines Verschleißzustands eines Herzunterstützungssystems, Verfahren und Vorrichtung zum Betreiben eines Herzunterstützungssystems und Herzunterstützungssystem
DE102018211327A1 (de) 2018-07-10 2020-01-16 Kardion Gmbh Laufrad für ein implantierbares, vaskuläres Unterstützungssystem
DE102018212153A1 (de) 2018-07-20 2020-01-23 Kardion Gmbh Zulaufleitung für eine Pumpeneinheit eines Herzunterstützungssystems, Herzunterstützungssystem und Verfahren zum Herstellen einer Zulaufleitung für eine Pumpeneinheit eines Herzunterstützungssystems
JP2020128745A (ja) * 2019-02-01 2020-08-27 ホワイト ナイト フルイド ハンドリング インコーポレーテッドＷｈｉｔｅ Ｋｎｉｇｈｔ Ｆｌｕｉｄ Ｈａｎｄｌｉｎｇ Ｉｎｃ． ロータを支承し、当該ロータを磁気的に軸線方向に位置決めするための磁石を有するポンプ、及びこれに関連する方法
EP4093974A1 (en) 2020-01-21 2022-11-30 Boston Scientific Scimed Inc. Magnetic drives having flux enhancers for blood pumps
DE102020102474A1 (de) 2020-01-31 2021-08-05 Kardion Gmbh Pumpe zum Fördern eines Fluids und Verfahren zum Herstellen einer Pumpe
JP2024536552A (ja) 2021-11-23 2024-10-04 ボストン サイエンティフィック サイムド，インコーポレイテッド 溶血の低減が可能な経皮的循環補助デバイス
US12076930B2 (en) 2021-12-03 2024-09-03 Hamilton Sundstrand Corporation Additively manufacturing an impeller and motor rotor
US12117016B2 (en) * 2021-12-03 2024-10-15 Hamilton Sundstrand Corporation Shaftless rotary machine
EP4249039A1 (de) * 2022-03-21 2023-09-27 Berlin Heart GmbH Steuereinheit für eine blutpumpe, pumpensystem und verfahren

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3831203A (en) * 1973-09-28 1974-08-27 Atomic Energy Commission Implantable blood pumping system
US4135253A (en) * 1976-11-30 1979-01-23 Medtronic, Inc. Centrifugal blood pump for cardiac assist
US4403911A (en) * 1977-12-08 1983-09-13 Possell Clarence R Bladeless pump and method of using same
EP0378251B1 (en) * 1981-03-18 1994-06-01 Günther Walter Otto Bramm Magnetically suspended and rotated impellor pump apparatus
US4688998A (en) * 1981-03-18 1987-08-25 Olsen Don B Magnetically suspended and rotated impellor pump apparatus and method
US5078741A (en) * 1986-10-12 1992-01-07 Life Extenders Corporation Magnetically suspended and rotated rotor
US4944748A (en) * 1986-10-12 1990-07-31 Bramm Gunter W Magnetically suspended and rotated rotor
US4704121A (en) * 1983-09-28 1987-11-03 Nimbus, Inc. Anti-thrombogenic blood pump
DE3343186A1 (de) * 1983-11-29 1985-06-05 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., 8000 München Magnetische rotorlagerung
JPS60142859A (ja) * 1983-12-29 1985-07-29 泉工医科工業株式会社 拍動血流量自動設定機構付ロ−ラポンプ
JPS61232859A (ja) * 1985-04-05 1986-10-17 呉羽化学工業株式会社 医用ポンプ装置
US4925443A (en) * 1987-02-27 1990-05-15 Heilman Marlin S Biocompatible ventricular assist and arrhythmia control device
US4779614A (en) * 1987-04-09 1988-10-25 Nimbus Medical, Inc. Magnetically suspended rotor axial flow blood pump
US4782817A (en) * 1987-05-29 1988-11-08 Abiomed Cardiovascular, Inc. Ventricular support system
US4846152A (en) * 1987-11-24 1989-07-11 Nimbus Medical, Inc. Single-stage axial flow blood pump
US4957504A (en) * 1988-12-02 1990-09-18 Chardack William M Implantable blood pump
US4944722A (en) * 1989-02-23 1990-07-31 Nimbus Medical, Inc. Percutaneous axial flow blood pump
US5049134A (en) * 1989-05-08 1991-09-17 The Cleveland Clinic Foundation Sealless heart pump
US5324177A (en) * 1989-05-08 1994-06-28 The Cleveland Clinic Foundation Sealless rotodynamic pump with radially offset rotor
US4927407A (en) * 1989-06-19 1990-05-22 Regents Of The University Of Minnesota Cardiac assist pump with steady rate supply of fluid lubricant
US4993427A (en) * 1989-11-09 1991-02-19 Sonotek Corporation Heart contraction monitor
ES2049546T3 (es) * 1990-02-09 1994-04-16 Teracor Procedimiento y dispositivo de regulacion de caudal de una protesis cardiaca de caudal periodico.
DE4123433A1 (de) 1990-07-31 1992-02-06 Ntn Toyo Bearing Co Ltd Pumpe
US5195877A (en) * 1990-10-05 1993-03-23 Kletschka Harold D Fluid pump with magnetically levitated impeller
US5470208A (en) * 1990-10-05 1995-11-28 Kletschka; Harold D. Fluid pump with magnetically levitated impeller
US5251621A (en) * 1991-12-18 1993-10-12 Telectronics Pacing Systems, Inc. Arrhythmia control pacer using skeletal muscle cardiac graft stimulation
US5469006A (en) * 1992-09-25 1995-11-21 Magnetic Bearing Technologies, Inc. Lorentz force magnetic bearing utilizing closed conductive loops and selectively controlled electromagnets
JP2569419B2 (ja) * 1993-02-18 1997-01-08 工業技術院長 人工心臓用ポンプ
US5388583A (en) * 1993-09-01 1995-02-14 Uab Vittamed Method and apparatus for non-invasively deriving and indicating of dynamic characteristics of the human and animal intracranial media
US5500004A (en) * 1994-11-08 1996-03-19 Telectronics Pacing Systems, Inc. Cardio myostimulation system with defibrillation
US5697884A (en) * 1995-08-17 1997-12-16 Medtronic, Inc. Cardiac assist device having circadian muscle simulation
US5658237A (en) * 1995-08-17 1997-08-19 Medtronic, Inc. Cardiac assist device having improved muscle stimulation
US5562595A (en) * 1995-08-17 1996-10-08 Medtronic, Inc. Multiple therapy cardiac assist device having battery voltage safety monitor
KR20000010736A (ko) * 1996-05-03 2000-02-25 얀센 크리스 전자기적으로 서스펜젼기능이 이루어지고 회전되는원심펌핑장치 및 방법
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

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GB2335146B (en) 2000-05-03
FR2802429A1 (fr) 2001-06-22
US6363276B1 (en) 2002-03-26
JP3182402B2 (ja) 2001-07-03
US5928131A (en) 1999-07-27
NL1010651A1 (nl) 1999-05-27
CA2251322C (en) 2003-02-18
US6179773B1 (en) 2001-01-30
ITRM980721A1 (it) 2000-05-25
FR2771295A1 (fr) 1999-05-28
FR2802428A1 (fr) 2001-06-22
FR2771295B1 (fr) 2001-04-06
DE19854724A1 (de) 1999-05-27
FR2802429B1 (fr) 2004-10-22
GB9823739D0 (en) 1998-12-23
US6375607B1 (en) 2002-04-23

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