HUP9901479A2 - Mágneses folyadékkal erősített elektromágneses hajtóeszköz vérszivattyúhoz a szívműködés segítéséhez, vagy a szív részleges vagy teljes helyettesítéséhez - Google Patents

Mágneses folyadékkal erősített elektromágneses hajtóeszköz vérszivattyúhoz a szívműködés segítéséhez, vagy a szív részleges vagy teljes helyettesítéséhez

Info

Publication number
HUP9901479A2
HUP9901479A2 HU9901479A HUP9901479A HUP9901479A2 HU P9901479 A2 HUP9901479 A2 HU P9901479A2 HU 9901479 A HU9901479 A HU 9901479A HU P9901479 A HUP9901479 A HU P9901479A HU P9901479 A2 HUP9901479 A2 HU P9901479A2
Authority
HU
Hungary
Prior art keywords
heart
blood pump
electromagnetic drive
magnetic fluid
partial
Prior art date
Application number
HU9901479A
Other languages
English (en)
Inventor
Norbert Buske
Thomas Hähndel
Johannes Müller
Arnim Nethe
Armin Rehfeld
Hanns-Dietrich Stahlmann
Original Assignee
Norbert Buske
Thomas Hähndel
Johannes Müller
Arnim Nethe
Armin Rehfeld
Hanns-Dietrich Stahlmann
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 DE19609281A external-priority patent/DE19609281C1/de
Application filed by Norbert Buske, Thomas Hähndel, Johannes Müller, Arnim Nethe, Armin Rehfeld, Hanns-Dietrich Stahlmann filed Critical Norbert Buske
Publication of HUP9901479A2 publication Critical patent/HUP9901479A2/hu
Publication of HUP9901479A3 publication Critical patent/HUP9901479A3/hu

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/44—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids
    • H01F1/442—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of magnetic liquids, e.g. ferrofluids the magnetic component being a metal or alloy, e.g. Fe
    • 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
    • A61M60/40—Details relating to driving
    • A61M60/424—Details relating to driving for positive displacement blood pumps
    • A61M60/427—Details relating to driving for positive displacement blood pumps the force acting on the blood contacting member being hydraulic or pneumatic
    • 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
    • A61M60/855—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

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Hematology (AREA)
  • Mechanical Engineering (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Power Engineering (AREA)
  • External Artificial Organs (AREA)
  • Prostheses (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

A találmány tárgya mágneses főlyadékkal erősített (támőgatőtt)elektrőmágneses hajtóeszköz szívműködés segítésére, vagy a szívrészleges vagy teljes helyettesítésére szőlgáló vérszivattyúhőz, amelyhajtóeszköznek egy vagy több elektőrmágnese és erőátalakító szerkezetevan. A találmány lényege, hőgy legalább egy elektrőmágneses körközbenső tere teljesen vagy részben mágneses flűidűmmal (főlyadékkal)van kitöltve. Az elektrőmágnes(ek) pólűsai tartósan mágnesestűlajdőnságú(ak). Célszerűen őlyan mágneses főlyadék kerülalkalmazásra, amelynek a telítési mágnesezése 5-25 kezdetipermeabilitás mellett 150-450 mT. A találmány előnye, hőgy ahajtóeszközzel ellátőtt vérszivattyú a súlyát és energiasűrűségéttekintve messzemenően megfelel a természetes szívnek, és különösenalkalmas beültetésre. A teljes rendszer kisebb, mint a hasőnlómegőldásők, űgyanakkőr jőbb a hatásfőka. ŕ
HU9901479A 1996-02-27 1997-02-27 Magnetic fluid-assisted electromagnetic drive for a blood pump used to support the heart or for partial or complete replacement of the heart HUP9901479A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19609281A DE19609281C1 (de) 1996-02-27 1996-02-27 Magnetofluidunterstützter elektromagnetischer Antrieb für eine Blutpumpe zur Unterstützung oder zum teilweisen bis totalen Ersatz des Herzens

Publications (2)

Publication Number Publication Date
HUP9901479A2 true HUP9901479A2 (hu) 1999-08-30
HUP9901479A3 HUP9901479A3 (en) 2001-06-28

Family

ID=7787799

Family Applications (1)

Application Number Title Priority Date Filing Date
HU9901479A HUP9901479A3 (en) 1996-02-27 1997-02-27 Magnetic fluid-assisted electromagnetic drive for a blood pump used to support the heart or for partial or complete replacement of the heart

Country Status (10)

Country Link
US (1) US6074365A (hu)
EP (1) EP0822840A1 (hu)
JP (1) JPH11504554A (hu)
AU (1) AU719915B2 (hu)
BR (1) BR9702122A (hu)
CA (1) CA2219490A1 (hu)
DE (1) DE19654864A1 (hu)
EA (1) EA000221B1 (hu)
HU (1) HUP9901479A3 (hu)
WO (1) WO1997031662A1 (hu)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6918870B1 (en) 1999-06-17 2005-07-19 Heart Assist Technologies Pty Ltd Assist device for the failing heart

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FR2772971A1 (fr) * 1997-12-23 1999-06-25 Commissariat Energie Atomique Actionneur a ferrofluide de proximite
DE19806167A1 (de) * 1998-02-14 1999-08-19 Studiengesellschaft Kohle Mbh Edelmetall-geschützte, antikorrosive magnetische Nanokolloide
DE19821968A1 (de) * 1998-05-18 1999-11-25 Studiengesellschaft Kohle Mbh Verfahren zur Modifizierung der Dispergiereigenschaften von metallorganisch-prästabilisierten bzw. -vorbehandelten Nanometallkolloiden
US6251061B1 (en) 1998-09-09 2001-06-26 Scimed Life Systems, Inc. Cardiac assist device using field controlled fluid
AUPR333301A0 (en) * 2001-02-23 2001-03-22 Northern Sydney Area Health Service Determining the volume of a normal heart and its pathological and treated variants by using dimension sensors
DE10123151B4 (de) * 2001-05-03 2007-07-19 Berlin Heart Ag Vorrichtung zur subkutanen Übertragung von Energie oder Daten
DE10227779A1 (de) * 2002-06-21 2004-01-08 Studiengesellschaft Kohle Mbh Monodisperse, magnetische Nanokolloide einstellbarer Größe und Verfahren zu deren Herstellung
CN100344874C (zh) * 2003-01-28 2007-10-24 清华大学 一种流体的传输方法及实现该方法的微型蠕动泵
TWI228101B (en) * 2003-09-26 2005-02-21 Ind Tech Res Inst Micro pump using magnetic fluid or magneto-rheological fluid
US7172551B2 (en) * 2004-04-12 2007-02-06 Scimed Life Systems, Inc. Cyclical pressure coronary assist pump
US7303581B2 (en) * 2004-09-10 2007-12-04 Peralta Eduardo J Artificial heart using magnetohydrodynamic propulsionh
US7539016B2 (en) * 2005-12-30 2009-05-26 Intel Corporation Electromagnetically-actuated micropump for liquid metal alloy enclosed in cavity with flexible sidewalls
US8128699B2 (en) * 2009-03-13 2012-03-06 Warsaw Orthopedic, Inc. Spinal implant and methods of implantation and treatment
ES2535255T3 (es) * 2009-11-06 2015-05-07 Fundación Tecnalia Research & Innovation Dispositivo y procedimiento para la fijación de piezas
US9157460B2 (en) * 2012-06-05 2015-10-13 Toyota Motor Engineering & Manufacturing North America, Inc. Controlling a fluid flow with a magnetic field
US11518957B2 (en) 2016-02-29 2022-12-06 Lord Corporation Additive for magnetorheological fluids
DE102017128271A1 (de) * 2017-08-01 2019-02-07 Schwarzer Precision GmbH & Co. KG Membranpumpe und Verfahren zur berührungslosen Betätigung der Membranen von mehreren Arbeitsräumen einer Membranpumpe

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US3768931A (en) * 1971-05-03 1973-10-30 Birch R Magnetically actuated pump with flexible membrane
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US4485024A (en) * 1982-04-07 1984-11-27 Nippon Seiko Kabushiki Kaisha Process for producing a ferrofluid, and a composition thereof
IT1203722B (it) * 1983-12-30 1989-02-23 Sala Berardino Della Cuore artificiale rotale con azionamento elettromagnetico
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6918870B1 (en) 1999-06-17 2005-07-19 Heart Assist Technologies Pty Ltd Assist device for the failing heart

Also Published As

Publication number Publication date
WO1997031662A1 (de) 1997-09-04
BR9702122A (pt) 1999-01-26
DE19654864A1 (de) 1997-08-28
EA199700273A1 (ru) 1998-02-26
JPH11504554A (ja) 1999-04-27
US6074365A (en) 2000-06-13
EP0822840A1 (de) 1998-02-11
HUP9901479A3 (en) 2001-06-28
AU719915B2 (en) 2000-05-18
EA000221B1 (ru) 1998-12-24
CA2219490A1 (en) 1997-09-04
AU2631797A (en) 1997-09-16

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