WO1999034847A3 - Improved sealless blood pump - Google Patents

Improved sealless blood pump Download PDF

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Publication number
WO1999034847A3
WO1999034847A3 PCT/US1999/000636 US9900636W WO9934847A3 WO 1999034847 A3 WO1999034847 A3 WO 1999034847A3 US 9900636 W US9900636 W US 9900636W WO 9934847 A3 WO9934847 A3 WO 9934847A3
Authority
WO
WIPO (PCT)
Prior art keywords
blood pump
pump
operating
motor
impeller
Prior art date
Application number
PCT/US1999/000636
Other languages
French (fr)
Other versions
WO1999034847A2 (en
Inventor
Enrique J Klein
Original Assignee
Enrique J Klein
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 Enrique J Klein filed Critical Enrique J Klein
Priority to JP2000527294A priority Critical patent/JP2002512821A/en
Priority to EP99901437A priority patent/EP1047462A2/en
Publication of WO1999034847A2 publication Critical patent/WO1999034847A2/en
Publication of WO1999034847A3 publication Critical patent/WO1999034847A3/en

Links

Classifications

    • 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
    • A61M60/818—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
    • A61M60/10—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
    • A61M60/226—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
    • A61M60/408—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable
    • A61M60/411—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable generated by an electromotor
    • A61M60/416—Details relating to driving for non-positive displacement blood pumps the force acting on the blood contacting member being mechanical, e.g. transmitted by a shaft or cable generated by an electromotor transmitted directly by the motor rotor drive shaft
    • 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
    • A61M60/81—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
    • A61M60/10—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

Abstract

This invention is a non-seal implanted rotary blood pump including a number of features which improve its performance over the prior art. Such features include a fully floating shaft on magnetic bearings (2) to avoid thrombus formation; a split blood flow path allowing for improved motor efficiency; a non-brush motor (1) operating in the left ventricle independently from the pump impeller; an axial/radial flow impeller (5) coaxially mounted with the motor, and operating within a portion of the housing placed outside the heart; and means for imparting pulsation to the output of a rotary pump.
PCT/US1999/000636 1998-01-12 1999-01-11 Improved sealless blood pump WO1999034847A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000527294A JP2002512821A (en) 1998-01-12 1999-01-11 Improved sealless blood pump
EP99901437A EP1047462A2 (en) 1998-01-12 1999-01-11 Improved sealless blood pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US7112398P 1998-01-12 1998-01-12
US60/071,123 1998-01-12

Publications (2)

Publication Number Publication Date
WO1999034847A2 WO1999034847A2 (en) 1999-07-15
WO1999034847A3 true WO1999034847A3 (en) 1999-12-09

Family

ID=22099375

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/000636 WO1999034847A2 (en) 1998-01-12 1999-01-11 Improved sealless blood pump

Country Status (3)

Country Link
EP (1) EP1047462A2 (en)
JP (1) JP2002512821A (en)
WO (1) WO1999034847A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7216206B2 (en) 2019-03-25 2023-01-31 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 Mechanical circulation auxiliary pump drive with corrosion protection

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2374989A1 (en) * 2002-03-08 2003-09-08 Andre Garon Ventricular assist device comprising a dual inlet hybrid flow blood pump
EP1374928B1 (en) * 2002-06-21 2007-12-05 Helmut Mückter Blood pump comprising an impeller
EP1884010B1 (en) 2005-05-17 2014-04-30 Carter Fuel Systems, LLC Bldc motor and pump assembly with encapsulated circuit board
EP2249746B1 (en) * 2008-02-08 2018-10-03 Heartware, Inc. Ventricular assist device for intraventricular placement
FR2955499B1 (en) 2010-01-28 2013-06-14 Fineheart "AUTONOMOUS CARDIAC PUMP AND METHOD USED IN SUCH A PUMP".
WO2013014339A1 (en) * 2011-07-28 2013-01-31 Fineheart Removable heart pump, and method implemented in such a pump
US9597205B2 (en) 2012-06-06 2017-03-21 Magenta Medical Ltd. Prosthetic renal valve
US10583231B2 (en) 2013-03-13 2020-03-10 Magenta Medical Ltd. Blood pump
CA3126978A1 (en) 2013-03-13 2014-09-18 Magenta Medical Ltd. Impeller for use with an axial support member
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
US9764113B2 (en) 2013-12-11 2017-09-19 Magenta Medical Ltd Curved catheter
US11291824B2 (en) 2015-05-18 2022-04-05 Magenta Medical Ltd. Blood pump
WO2018061002A1 (en) 2016-09-29 2018-04-05 Magenta Medical Ltd. Blood vessel tube
JP7383476B2 (en) 2016-10-25 2023-11-20 マジェンタ・メディカル・リミテッド ventricular assist device
CN110049792B (en) 2016-11-23 2022-01-18 马真塔医药有限公司 Blood pump
EP4039321A1 (en) 2018-01-10 2022-08-10 Magenta Medical Ltd. Ventricular assist device
US10905808B2 (en) 2018-01-10 2021-02-02 Magenta Medical Ltd. Drive cable for use with a blood pump
US10893927B2 (en) 2018-03-29 2021-01-19 Magenta Medical Ltd. Inferior vena cava blood-flow implant
WO2020152611A2 (en) 2019-01-24 2020-07-30 Magenta Medical Ltd Ventricular assist device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688998A (en) * 1981-03-18 1987-08-25 Olsen Don B Magnetically suspended and rotated impellor pump apparatus and method
US4994078A (en) * 1988-02-17 1991-02-19 Jarvik Robert K Intraventricular artificial hearts and methods of their surgical implantation and use
US5470208A (en) * 1990-10-05 1995-11-28 Kletschka; Harold D. Fluid pump with magnetically levitated impeller

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4072370A (en) 1976-08-24 1978-02-07 Spectra-Flux, Inc. Radial magnetic bearing
US5695471A (en) 1996-02-20 1997-12-09 Kriton Medical, Inc. Sealless rotary blood pump with passive magnetic radial bearings and blood immersed axial bearings

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4688998A (en) * 1981-03-18 1987-08-25 Olsen Don B Magnetically suspended and rotated impellor pump apparatus and method
US4994078A (en) * 1988-02-17 1991-02-19 Jarvik Robert K Intraventricular artificial hearts and methods of their surgical implantation and use
US5470208A (en) * 1990-10-05 1995-11-28 Kletschka; Harold D. Fluid pump with magnetically levitated impeller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7216206B2 (en) 2019-03-25 2023-01-31 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 Mechanical circulation auxiliary pump drive with corrosion protection

Also Published As

Publication number Publication date
JP2002512821A (en) 2002-05-08
WO1999034847A2 (en) 1999-07-15
EP1047462A2 (en) 2000-11-02

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