EP 0822840 A1 19980211 - MAGNETIC FLUID-ASSISTED ELECTROMAGNETIC DRIVE FOR A BLOOD PUMP USED TO SUPPORT THE HEART OR FOR PARTIAL OR COMPLETE REPLACEMENT OF THE HEART
Title (en)
MAGNETIC FLUID-ASSISTED ELECTROMAGNETIC DRIVE FOR A BLOOD PUMP USED TO SUPPORT THE HEART OR FOR PARTIAL OR COMPLETE REPLACEMENT OF THE HEART
Title (de)
MAGNETFLUIDUNTERSTÜTZTER ELEKTROMAGNETISCHER ANTRIEB FÜR EINE BLUTPUMPE ZUR UNTERSTÜTZUNG ODER ZUM TEILWEISEN BIS TOTALEN ERSATZ DES HERZENS
Title (fr)
COMMANDE ELECTROMAGNETIQUE ASSISTEE PAR FLUIDE MAGNETIQUE POUR UNE POMPE CARDIAQUE SERVANT A ASSISTER LE COEUR OU A SUPPLEER PARTIELLEMENT OU TOTALEMENT LA FONCTION CARDIAQUE
Publication
Application
Priority
- DE 9700441 W 19970227
- DE 19609281 A 19960227
Abstract (en)
[origin: US6074365A] PCT No. PCT/DE97/00441 Sec. 371 Date Jan. 26, 1998 Sec. 102(e) Date Jan. 26, 1998 PCT Filed Feb. 27, 1997 PCT Pub. No. WO97/31662 PCT Pub. Date Sep. 4, 1997The invention relates to a magnetofluid-supported electromagnetic drive for a blood pump for supporting or partially to totally replacing the heart whereby the blood pump in its weight as well as its energy density nearly corresponds to the natural heart and is especially suitable for an implantation whereby a reduction of the total system in comparison with known systems is to be made possible and the efficiency is improved at the same time. This task is solved by the blood pump having a magnetofluid-supported electromagnetic drive consisting of one or several electromagnets and force-transforming facilities and with the space of at least one electromagnetic circuit being completely or partially filled with magnetofluid, whereby the poles show permanent-magnetic properties. Thereby, a magnetofluid with a saturation magnetization of 150 to 450 mT has been used with an initial permeability of 5 to 25.
IPC 1-7
IPC 8 full level
F04B 43/08 (2006.01); A61M 60/178 (2021.01); A61M 60/196 (2021.01); A61M 60/268 (2021.01); A61M 60/427 (2021.01); A61M 60/857 (2021.01); H01F 1/44 (2006.01)
CPC (source: EP US)
A61M 60/178 (2021.01 - EP US); A61M 60/196 (2021.01 - EP US); A61M 60/427 (2021.01 - EP US); H01F 1/442 (2013.01 - EP US); A61M 60/148 (2021.01 - EP US); A61M 60/892 (2021.01 - EP US)
Citation (search report)
See references of WO 9731662A1
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
US 6074365 A 20000613; AU 2631797 A 19970916; AU 719915 B2 20000518; BR 9702122 A 19990126; CA 2219490 A1 19970904; DE 19654864 A1 19970828; EA 000221 B1 19981224; EA 199700273 A1 19980226; EP 0822840 A1 19980211; HU P9901479 A2 19990830; HU P9901479 A3 20010628; JP H11504554 A 19990427; WO 9731662 A1 19970904
DOCDB simple family (application)
US 94578098 A 19980126; AU 2631797 A 19970227; BR 9702122 A 19970227; CA 2219490 A 19970227; DE 19654864 A 19960227; DE 9700441 W 19970227; EA 199700273 A 19970227; EP 97918007 A 19970227; HU P9901479 A 19970227; JP 53051897 A 19970227