DE19840399B4 - Zentrifugalfluidpumpenanordnung - Google Patents

Zentrifugalfluidpumpenanordnung Download PDF

Info

Publication number
DE19840399B4
DE19840399B4 DE19840399A DE19840399A DE19840399B4 DE 19840399 B4 DE19840399 B4 DE 19840399B4 DE 19840399 A DE19840399 A DE 19840399A DE 19840399 A DE19840399 A DE 19840399A DE 19840399 B4 DE19840399 B4 DE 19840399B4
Authority
DE
Germany
Prior art keywords
impeller
viscosity
function
electric current
fluid
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.)
Expired - Fee Related
Application number
DE19840399A
Other languages
German (de)
English (en)
Other versions
DE19840399A1 (de
Inventor
Teruaki Akamatsu
Toshihiko Nojiri
Takayoshi Iwata Ozaki
Minoru Iwata Suzuki
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.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing Co Ltd
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 NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Publication of DE19840399A1 publication Critical patent/DE19840399A1/de
Application granted granted Critical
Publication of DE19840399B4 publication Critical patent/DE19840399B4/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/0066—Control, e.g. regulation, of pumps, pumping installations or systems by changing the speed, e.g. of the driving engine
    • 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
    • A61M60/104—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body
    • A61M60/109—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems
    • A61M60/113—Extracorporeal pumps, i.e. the blood being pumped outside the patient's body incorporated within extracorporeal blood circuits or systems in other functional devices, e.g. dialysers or heart-lung machines
    • 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
    • A61M60/50—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
    • A61M60/50—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
    • A61M60/546—Regulation using real-time blood pump operational parameter data, e.g. motor current of blood flow, e.g. by adapting rotor speed
    • 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
    • A61M60/554—Regulation using real-time blood pump operational parameter data, e.g. motor current of blood pressure
    • 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
    • A61M60/585—User interfaces
    • 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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Cardiology (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Public Health (AREA)
  • Biomedical Technology (AREA)
  • Medical Informatics (AREA)
  • Human Computer Interaction (AREA)
  • Pulmonology (AREA)
  • General Engineering & Computer Science (AREA)
  • External Artificial Organs (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
DE19840399A 1997-09-05 1998-09-04 Zentrifugalfluidpumpenanordnung Expired - Fee Related DE19840399B4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP257891/97 1997-09-05
JP25789197A JP3919896B2 (ja) 1997-09-05 1997-09-05 遠心式液体ポンプ装置

Publications (2)

Publication Number Publication Date
DE19840399A1 DE19840399A1 (de) 1999-03-11
DE19840399B4 true DE19840399B4 (de) 2011-06-09

Family

ID=17312631

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19840399A Expired - Fee Related DE19840399B4 (de) 1997-09-05 1998-09-04 Zentrifugalfluidpumpenanordnung

Country Status (4)

Country Link
US (1) US6142752A (https=)
JP (1) JP3919896B2 (https=)
CA (1) CA2246826A1 (https=)
DE (1) DE19840399B4 (https=)

Families Citing this family (90)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8172546B2 (en) 1998-11-23 2012-05-08 Entegris, Inc. System and method for correcting for pressure variations using a motor
DE60032678T2 (de) * 1999-07-23 2007-11-08 Terumo K.K. Zentrifugalpumpenaggregat
JP4677081B2 (ja) * 2000-07-07 2011-04-27 テルモ株式会社 遠心式液体ポンプ装置
JP4554740B2 (ja) * 1999-07-23 2010-09-29 テルモ株式会社 遠心式血液ポンプ装置
JP4651157B2 (ja) * 2000-06-20 2011-03-16 Ｎｔｎ株式会社 磁気浮上型ポンプおよびその制御方法
JP4694023B2 (ja) * 2001-04-09 2011-06-01 テルモ株式会社 遠心式液体ポンプ装置
EP1286240B1 (de) * 2001-08-22 2004-08-11 Pumpenfabrik Ernst Vogel Gesellschaft m.b.H. Verfahren zur Ermittlung einer Pumpen-Regelkennlinie
JP4004296B2 (ja) * 2002-01-28 2007-11-07 テルモ株式会社 遠心式液体ポンプ装置
US6949066B2 (en) * 2002-08-21 2005-09-27 World Heart Corporation Rotary blood pump diagnostics and cardiac output controller
JP4041376B2 (ja) * 2002-09-30 2008-01-30 テルモ株式会社 血液ポンプ装置
JP4289909B2 (ja) * 2003-03-07 2009-07-01 三輪精機株式会社 油圧ポンプの制御システムおよび荷受台昇降装置
EP1486217B1 (en) 2003-06-12 2010-05-12 Terumo Kabushiki Kaisha Artificial heart pump system and its control apparatus
JP4521547B2 (ja) * 2004-04-15 2010-08-11 株式会社サンメディカル技術研究所 血液ポンプの流量推定装置
US8292598B2 (en) 2004-11-23 2012-10-23 Entegris, Inc. System and method for a variable home position dispense system
KR101308784B1 (ko) 2005-11-21 2013-09-17 엔테그리스, 아이엔씨. 소형 폼 팩터를 갖는 펌프용 시스템 및 방법
US8753097B2 (en) 2005-11-21 2014-06-17 Entegris, Inc. Method and system for high viscosity pump
US8083498B2 (en) 2005-12-02 2011-12-27 Entegris, Inc. System and method for position control of a mechanical piston in a pump
US7878765B2 (en) 2005-12-02 2011-02-01 Entegris, Inc. System and method for monitoring operation of a pump
KR101243509B1 (ko) 2005-12-02 2013-03-20 엔테그리스, 아이엔씨. 펌프에서의 압력 보상을 위한 시스템 및 방법
JP5345853B2 (ja) * 2005-12-05 2013-11-20 インテグリス・インコーポレーテッド ポンプのための誤差容積システムおよび方法
TWI402423B (zh) 2006-02-28 2013-07-21 Entegris Inc 用於一幫浦操作之系統及方法
US20080133006A1 (en) * 2006-10-27 2008-06-05 Ventrassist Pty Ltd Blood Pump With An Ultrasonic Transducer
JP2008190401A (ja) * 2007-02-05 2008-08-21 Nidec Shibaura Corp ポンプ
JP2008247021A (ja) * 2007-03-06 2008-10-16 Seiko Epson Corp 流体噴射装置用チューブポンプ、流体噴射装置及びポンプの流体吸引調整方法
EP2292282B1 (en) 2008-06-23 2017-11-15 Thoratec Corporation Blood pump apparatus
CN102239334B (zh) 2008-12-08 2015-03-04 胸腔科技有限公司 离心式泵装置
US20100222878A1 (en) * 2009-02-27 2010-09-02 Thoratec Corporation Blood pump system with arterial pressure monitoring
US8562507B2 (en) 2009-02-27 2013-10-22 Thoratec Corporation Prevention of aortic valve fusion
US20100222633A1 (en) * 2009-02-27 2010-09-02 Victor Poirier Blood pump system with controlled weaning
US20100222635A1 (en) * 2009-02-27 2010-09-02 Thoratec Corporation Maximizing blood pump flow while avoiding left ventricle collapse
US8449444B2 (en) * 2009-02-27 2013-05-28 Thoratec Corporation Blood flow meter
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
DE102009026592B4 (de) 2009-05-29 2014-08-28 Sorin Group Deutschland Gmbh Vorrichtung zur Festlegung des venösen Zuflusses zu einem Blutreservoir eines extrakorporalen Blutkreislaufs
DE102009027195A1 (de) * 2009-06-25 2010-12-30 Sorin Group Deutschland Gmbh Vorrichtung zur Förderung von Blut in einem extrakorporalen Kreislauf
EP3490122B1 (en) 2009-07-29 2021-01-27 Thoratec Corporation Rotation drive device and centrifugal pump device
JP5427620B2 (ja) * 2010-01-15 2014-02-26 株式会社サンメディカル技術研究所 血液ポンプの流量推定方法
DE102010001150A1 (de) * 2010-01-22 2011-07-28 Robert Bosch GmbH, 70469 Verfahren zum Steuern der Fördermenge einer Förderpumpe
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
DE102010011798B4 (de) * 2010-03-17 2017-07-13 Fresenius Medical Care Deutschland Gmbh Verfahren und Vorrichtung zur Druck- oder Volumenstrombestimmung von medizinischen Fluiden
DE102010012050B4 (de) * 2010-03-19 2016-09-29 Fresenius Medical Care Deutschland Gmbh Hämodialysemaschine
WO2011118325A1 (ja) 2010-03-26 2011-09-29 テルモ株式会社 遠心式血液ポンプ装置
TW201212959A (en) 2010-06-22 2012-04-01 Thoratec Corp Fluid delivery system and method for monitoring fluid delivery system
US9089635B2 (en) 2010-06-22 2015-07-28 Thoratec Corporation Apparatus and method for modifying pressure-flow characteristics of a pump
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
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
AU2011305243A1 (en) 2010-09-24 2013-04-04 Thoratec Corporation Control of circulatory assist systems
EP3117845B1 (en) 2010-09-24 2018-10-31 Tc1 Llc Generating artificial pulse
EP2693609B1 (en) 2011-03-28 2017-05-03 Thoratec Corporation Rotation and drive device and centrifugal pump device using same
EP2545948B1 (en) 2011-07-12 2014-04-16 Sorin Group Italia S.r.l. Dual chamber blood reservoir
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
US9511178B2 (en) * 2012-07-09 2016-12-06 Medtronic, Inc. Reducing centrifugal pump bearing wear through dynamic magnetic coupling
US9710610B2 (en) 2012-07-25 2017-07-18 Covidien Lp Enteral feeding pump with flow adjustment
JP5910489B2 (ja) * 2012-12-26 2016-04-27 株式会社デンソー 流体性状判別装置、熱サイクル制御装置、および熱サイクル装置
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
US10052420B2 (en) 2013-04-30 2018-08-21 Tc1 Llc Heart beat identification and pump speed synchronization
US9713663B2 (en) 2013-04-30 2017-07-25 Tc1 Llc Cardiac pump with speed adapted for ventricle unloading
JP6141733B2 (ja) * 2013-09-20 2017-06-07 テルモ株式会社 血液循環装置
EP3049127B1 (en) 2013-09-24 2021-07-14 Kpr U.S., Llc Feeding set and enteral feeding pump
CN110101927B (zh) 2014-04-15 2021-10-08 Tc1有限责任公司 用于控制血泵的方法和系统
US10077777B2 (en) * 2014-05-09 2018-09-18 The Cleveland Clinic Foundation Artificial heart system implementing suction recognition and avoidance methods
US10458833B2 (en) 2014-05-16 2019-10-29 Sorin Group Italia S.R.L. Blood reservoir with fluid volume measurement based on pressure sensor
US9623161B2 (en) 2014-08-26 2017-04-18 Tc1 Llc Blood pump and method of suction detection
WO2016035714A1 (ja) * 2014-09-02 2016-03-10 テルモ株式会社 体外循環装置及びその制御方法
EP3231461B1 (en) 2014-12-12 2019-08-14 Terumo Kabushiki Kaisha Extracorporeal circulation device
EP4643926A3 (en) 2015-02-11 2025-12-24 Tc1 Llc 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
US10117983B2 (en) 2015-11-16 2018-11-06 Tc1 Llc Pressure/flow characteristic modification of a centrifugal pump in a ventricular assist device
EP4732889A2 (en) 2017-06-07 2026-04-29 Supira Medical, Inc. Intravascular fluid movement devices, systems, and methods of use
US11511103B2 (en) 2017-11-13 2022-11-29 Shifamed Holdings, Llc Intravascular fluid movement devices, systems, and methods of use
JP7410034B2 (ja) 2018-02-01 2024-01-09 シファメド・ホールディングス・エルエルシー 血管内血液ポンプならびに使用および製造の方法
WO2019181658A1 (ja) * 2018-03-20 2019-09-26 テルモ株式会社 計測システムおよび計算ユニット
WO2020028537A1 (en) 2018-07-31 2020-02-06 Shifamed Holdings, Llc Intravascaular blood pumps and methods of use
WO2020073047A1 (en) 2018-10-05 2020-04-09 Shifamed Holdings, Llc Intravascular blood pumps and methods of use
JP2020074912A (ja) * 2018-11-07 2020-05-21 泉工医科工業株式会社 遠心ポンプ制御装置、遠心ポンプ及び遠心ポンプ制御方法
WO2021011473A1 (en) 2019-07-12 2021-01-21 Shifamed Holdings, Llc Intravascular blood pumps and methods of manufacture and use
US11654275B2 (en) 2019-07-22 2023-05-23 Shifamed Holdings, Llc Intravascular blood pumps with struts and methods of use and manufacture
EP4010046A4 (en) 2019-08-07 2023-08-30 Calomeni, Michael Catheter blood pumps and collapsible pump housings
EP4034221B1 (en) 2019-09-25 2024-11-13 Shifamed Holdings, LLC Catheter blood pumps and collapsible pump housings
EP4034192B1 (en) 2019-09-25 2025-12-24 Supira Medical, Inc. Intravascular blood pump systems and methods of use and control thereof
WO2021062260A1 (en) 2019-09-25 2021-04-01 Shifamed Holdings, Llc Catheter blood pumps and collapsible blood conduits
EP4072650A4 (en) 2019-12-11 2024-01-10 Shifamed Holdings, LLC Descending aorta and vena cava blood pumps
US12599758B2 (en) 2019-12-19 2026-04-14 Shifamed Holdings, Llc Intravascular blood pumps, motors, and fluid control
CN114796850A (zh) * 2022-02-25 2022-07-29 上海炫脉医疗科技有限公司 一种用于控制心脏辅助系统的速度的方法
AU2023232019A1 (en) * 2022-03-10 2024-10-10 Abiomed, Inc. Adaptive flow calculation for a mechanical circulatory support device
CN116106173B (zh) * 2023-04-07 2023-06-27 天津索克汽车试验有限公司 一种新能源汽车用机油粘度测量方法
CN117536891B (zh) * 2023-12-25 2024-04-09 犇流泵业科技(嘉兴)股份有限公司 一种磁悬浮式磁力驱动离心泵的参数优化方法及系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634180A1 (de) * 1995-08-23 1997-02-27 Ntn Toyo Bearing Co Ltd Verfahren zur Steuerung einer Blutpumpe

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52156678A (en) * 1976-06-22 1977-12-27 Masahide Ichikawa Mechanism for detecting viscosity of liquid
JPS623720Y2 (https=) * 1980-10-31 1987-01-28
JPS57164445U (https=) * 1981-04-10 1982-10-16
AU605206B2 (en) * 1986-10-17 1991-01-10 Baxter International Inc. Method and apparatus for estimating hematocrit in a blood constituent processing system
JP3546092B2 (ja) * 1995-04-03 2004-07-21 Ｎｔｎ株式会社 磁気浮上型ポンプ
US5725357A (en) * 1995-04-03 1998-03-10 Ntn Corporation Magnetically suspended type pump
US5575630A (en) * 1995-08-08 1996-11-19 Kyocera Corporation Blood pump having magnetic attraction
JP3553255B2 (ja) * 1996-01-31 2004-08-11 Ｎｔｎ株式会社 粘度計測機能付磁気浮上型ポンプ

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19634180A1 (de) * 1995-08-23 1997-02-27 Ntn Toyo Bearing Co Ltd Verfahren zur Steuerung einer Blutpumpe

Also Published As

Publication number Publication date
JPH1176394A (ja) 1999-03-23
CA2246826A1 (en) 1999-03-05
US6142752A (en) 2000-11-07
JP3919896B2 (ja) 2007-05-30
DE19840399A1 (de) 1999-03-11

Similar Documents

Publication Publication Date Title
DE19840399B4 (de) Zentrifugalfluidpumpenanordnung
EP3263148B1 (de) Verfahren zur ermittlung von betriebsparametern einer blutpumpe
EP1402907B1 (en) Blood pump system
EP3801223B1 (de) Bestimmvorrichtung und verfahren zum bestimmen einer viskosität eines fluids
WO2019243582A1 (de) Verfahren und vorrichtung zum erkennen eines verschleisszustands und zum betreiben eines herzunterstützungssystems und herzunterstützungssystem
DE19613388C2 (de) Magnetisch gelagerte Blutpumpe
EP3449132B1 (de) Verfahren zur detektion eines abnormalen betriebszustands eines pumpenaggregats
EP2333514A1 (de) Einrichtung und Verfahren zur Messung von strömungsmechanisch wirksamen Materialparametern eines Fluids
WO2016173896A1 (de) Pumpeneinrichtung sowie verfahren zum betrieb einer pumpe für flüssigkeiten
DE112005000636B4 (de) Pumpe
EP2445545B1 (de) Vorrichtung zur förderung von blut in einem extrakorporalen kreislauf
EP2433010B1 (de) Verfahren und vorrichtung zur betriebspunktbestimmung einer arbeitsmaschine
EP2585129B1 (en) Fluid delivery system and method for monitoring fluid delivery system
DE69410623T2 (de) Dosier-pumpsystem und verfahren mit lastenkompensation
EP2037236A2 (de) Verfahren zur Kalibrierung einer Durchflussmessung in einem Strömungssystem, sowie ein Strömungssystem zur Durchführung des Verfahrens
EP3108809A1 (de) Vorrichtung und verfahren zur druckmessung am herzen eines patienten
EP2962710A1 (de) Verfahren und Herzunterstützungssystem zur Bestimmung eines Auslassdrucks
EP0967475B1 (de) Verfahren zur Bestimmung der Viskosität einer Flüssigkeit
DE102007008197A1 (de) Massendurchflussmesser
WO2016166114A1 (de) Pumpe sowie verfahren zum betrieb einer pumpe für flüssigkeiten
DE19851523C1 (de) Gebläse
WO2008000688A1 (de) Verfahren zur überwachung einer anordnung zur bestimmung der konzentration eines analyten in einer körperflüssigkeit
EP4362999B1 (de) Extrakorporale kreislaufunterstützung
EP1039295B1 (de) System zur Gerinnungsmessung von Körperflüssigkeiten
DE102021209753A1 (de) Verfahren zur quantitativen Bestimmung aktueller betriebszustandsabhängiger Größen, insbesondere des aktuellen Fördervolumenstroms, eines Ventilators und Ventilator zur Anwendung des Verfahrens

Legal Events

Date Code Title Description
8128 New person/name/address of the agent

Representative=s name: GROSSE, BOCKHORNI, SCHUMACHER, 81476 MUENCHEN

8110 Request for examination paragraph 44
8128 New person/name/address of the agent

Representative=s name: GROSSE, SCHUMACHER, KNAUER, VON HIRSCHHAUSEN, 8033

R020 Patent grant now final

Effective date: 20110910

R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee
R119 Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee

Effective date: 20150401