CA2271833C - Bearing and seal-free blood pump - Google Patents

Bearing and seal-free blood pump Download PDF

Info

Publication number: CA2271833C
Authority: CA; Canada
Prior art keywords: rotor; pump; pumping chamber; fluid; axis
Prior art date: 1997-04-14
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

CA002271833A

Other languages

English (en)

French (fr)

Other versions

CA2271833A1 (en

Inventor

Valentin M. Izraelev

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.)

Advanced Bionics LLC

Original Assignee

Advanced Bionics LLC

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.)

1997-04-14

Filing date

1997-04-14

Publication date

2003-12-02

1997-04-14 Application filed by Advanced Bionics LLC filed Critical Advanced Bionics LLC

1997-04-14 Priority claimed from PCT/US1997/006205 external-priority patent/WO1998046879A1/en

1998-10-22 Publication of CA2271833A1 publication Critical patent/CA2271833A1/en

2003-12-02 Application granted granted Critical

2003-12-02 Publication of CA2271833C publication Critical patent/CA2271833C/en

2017-04-14 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

239000008280 blood Substances 0.000 title claims abstract description 22
210000004369 blood Anatomy 0.000 title claims abstract description 22
239000012530 fluid Substances 0.000 claims abstract description 52
238000005086 pumping Methods 0.000 claims abstract description 40
239000007788 liquid Substances 0.000 claims abstract description 8
230000004323 axial length Effects 0.000 claims description 9
230000009977 dual effect Effects 0.000 claims description 8
230000008878 coupling Effects 0.000 claims description 2
238000010168 coupling process Methods 0.000 claims description 2
238000005859 coupling reaction Methods 0.000 claims description 2
230000002093 peripheral effect Effects 0.000 claims 6
230000000694 effects Effects 0.000 description 6
239000000463 material Substances 0.000 description 6
230000033001 locomotion Effects 0.000 description 5
QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 4
229910052753 mercury Inorganic materials 0.000 description 4
238000006073 displacement reaction Methods 0.000 description 3
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
230000002411 adverse Effects 0.000 description 2
238000010276 construction Methods 0.000 description 2
230000008030 elimination Effects 0.000 description 2
230000006870 function Effects 0.000 description 2
230000005484 gravity Effects 0.000 description 2
238000005339 levitation Methods 0.000 description 2
238000012986 modification Methods 0.000 description 2
230000004048 modification Effects 0.000 description 2
231100000614 poison Toxicity 0.000 description 2
230000007096 poisonous effect Effects 0.000 description 2
239000011780 sodium chloride Substances 0.000 description 2
238000004804 winding Methods 0.000 description 2
241001465754 Metazoa Species 0.000 description 1
239000004793 Polystyrene Substances 0.000 description 1
NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
210000000709 aorta Anatomy 0.000 description 1
239000000560 biocompatible material Substances 0.000 description 1
230000036760 body temperature Effects 0.000 description 1
230000005779 cell damage Effects 0.000 description 1
208000037887 cell injury Diseases 0.000 description 1
230000008859 change Effects 0.000 description 1
239000011248 coating agent Substances 0.000 description 1
238000000576 coating method Methods 0.000 description 1
239000004020 conductor Substances 0.000 description 1
238000011109 contamination Methods 0.000 description 1
229920001577 copolymer Polymers 0.000 description 1
230000006378 damage Effects 0.000 description 1
238000010586 diagram Methods 0.000 description 1
230000005672 electromagnetic field Effects 0.000 description 1
238000003379 elimination reaction Methods 0.000 description 1
238000005265 energy consumption Methods 0.000 description 1
230000004217 heart function Effects 0.000 description 1
230000020169 heat generation Effects 0.000 description 1
238000002513 implantation Methods 0.000 description 1
230000001939 inductive effect Effects 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
230000001453 nonthrombogenic effect Effects 0.000 description 1
229920000058 polyacrylate Polymers 0.000 description 1
239000004417 polycarbonate Substances 0.000 description 1
229920000515 polycarbonate Polymers 0.000 description 1
229920002223 polystyrene Polymers 0.000 description 1
210000001147 pulmonary artery Anatomy 0.000 description 1
230000009467 reduction Effects 0.000 description 1
238000009877 rendering Methods 0.000 description 1
230000004044 response Effects 0.000 description 1
239000000758 substrate Substances 0.000 description 1
238000001356 surgical procedure Methods 0.000 description 1
239000013598 vector Substances 0.000 description 1
230000002861 ventricular Effects 0.000 description 1
239000011800 void material Substances 0.000 description 1
239000012224 working solution Substances 0.000 description 1

Landscapes

External Artificial Organs (AREA)

CA002271833A 1997-04-14 1997-04-14 Bearing and seal-free blood pump Expired - Fee Related CA2271833C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
PCT/US1997/006205 WO1998046879A1 (en)	1995-06-01	1997-04-14	Bearing and seal-free blood pump

Publications (2)

Publication Number	Publication Date
CA2271833A1 CA2271833A1 (en)	1998-10-22
CA2271833C true CA2271833C (en)	2003-12-02

Family

ID=29709395

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002271833A Expired - Fee Related CA2271833C (en)	1997-04-14	1997-04-14	Bearing and seal-free blood pump

Country Status (3)

Country	Link
AT (1)	ATE292241T1 (de)
CA (1)	CA2271833C (de)
DE (1)	DE69732924D1 (de)

1997
- 1997-04-14 DE DE69732924T patent/DE69732924D1/de not_active Expired - Fee Related
- 1997-04-14 CA CA002271833A patent/CA2271833C/en not_active Expired - Fee Related
- 1997-04-14 AT AT97921190T patent/ATE292241T1/de not_active IP Right Cessation

Also Published As

Publication number	Publication date
HK1031413A1 (en)	2001-06-15
CA2271833A1 (en)	1998-10-22
ATE292241T1 (de)	2005-04-15
DE69732924D1 (de)	2005-05-04

Legal Events

Date	Code	Title	Description
2000-05-01	EEER	Examination request
2013-05-27	MKLA	Lapsed	Effective date: 20130415

Publication	Publication Date	Title
AU712484B2 (en)	1999-11-11	Bearing and seal-free blood pump
US5938412A (en)	1999-08-17	Blood pump having rotor with internal bore for fluid flow
US5924848A (en)	1999-07-20	Blood pump having radial vanes with enclosed magnetic drive components
US6206659B1 (en)	2001-03-27	Magnetically driven rotor for blood pump
JP2594752B2 (ja)	1997-03-26	磁気浮揚式インペラーを持つ流体ポンプ及びインペラーの位置を安定化させるための方法
EP1464348B1 (de)	2011-04-06	Dichtungslose Rotationspumpe mit passiv-magnetischen Radiallagern und in Blut laufende Axiallager
US6234998B1 (en)	2001-05-22	Sealless rotary blood pump
WO2004104414A2 (en)	2004-12-02	Rotary pump with reduced fluid stress
CA2295932C (en)	2004-04-27	Improved rotor for blood pump
US6547539B2 (en)	2003-04-15	Pump assembly with bearing and seal-free reusable impeller for fragile and aggressive fluids
CA2271833C (en)	2003-12-02	Bearing and seal-free blood pump
HK1031413B (en)	2005-09-09	Bearing and seal-free blood pump
HK1031249B (en)	2005-05-20	Improved rotor for blood pump
JP2004162718A (ja)	2004-06-10	軸受およびシールの無い血液ポンプ