Title:
BLOOD PUMP SYSTEMS AND METHODS
Document Type and Number:
WIPO Patent Application WO/2014/028787
Kind Code:
A3
Abstract:
The present invention relates to a rotary blood pump with a double pivot contact bearing system with an operating range between about 50 mL/min and about 1500 mL/min. The rotary blood pump is part of a blood pump system that includes blood conduit(s), a control system with optional sensors, and a power source. Embodiments of the present invention may include elements such as wear resistant bearing materials, a rotor back plate for magnetic attraction of the rotor to reduce bearing pivot bearing forces and wear, a rotor size and shape and a bearing gap that combine to create a hydrodynamic bearing effect and reduce bearing pivot bearing forces and wear, improved intravascular conduits with increased resistance to thrombosis, conduit insertion site cuffs to resist infection, and conduit side ports amenable to the easy insertion of guidewire and catheter-based medical devices.
Inventors:
FRANANO F NICHOLAS (US)
LOREE II HOWARD M (US)
TANSLEY GEOFF (AU)
WOODARD STEVE (US)
HUTTO BARRETT (US)
LOREE II HOWARD M (US)
TANSLEY GEOFF (AU)
WOODARD STEVE (US)
HUTTO BARRETT (US)
Application Number:
PCT/US2013/055221
Publication Date:
March 27, 2014
Filing Date:
August 15, 2013
Export Citation:
Assignee:
NOVITA THERAPEUTICS (US)
FRANANO F NICHOLAS (US)
LOREE II HOWARD M (US)
TANSLEY GEOFF (AU)
WOODARD STEVE (US)
HUTTO BARRETT (US)
FRANANO F NICHOLAS (US)
LOREE II HOWARD M (US)
TANSLEY GEOFF (AU)
WOODARD STEVE (US)
HUTTO BARRETT (US)
International Classes:
A61M5/14; A61M5/142; A61M60/104; A61M60/122; A61M60/232; A61M60/419; A61M60/508; A61M60/825; A61M60/857
Domestic Patent References:
| WO2009059371A2 | 2009-05-14 |
Foreign References:
| US20110201990A1 | 2011-08-18 | |||
| US7476077B2 | 2009-01-13 | |||
| US5713730A | 1998-02-03 | |||
| US6439845B1 | 2002-08-27 | |||
| US6234772B1 | 2001-05-22 | |||
| US6183220B1 | 2001-02-06 | |||
| US20040186461A1 | 2004-09-23 | |||
| US5509908A | 1996-04-23 | |||
| EP1825872A2 | 2007-08-29 | |||
| US7762977B2 | 2010-07-27 | |||
| US7059052B2 | 2006-06-13 |
Other References:
BENNETT, M ET AL.: "Pump-induced Haemolysis: A Comparison Of Short-term Ventricular Assist Devices.", PERFUSION., vol. 19, no. 2, March 2004 (2004-03-01), pages 108, XP008179777
JAMES, NL ET AL.: "Evaluation of Hemolysis In The VentrAssist Implantable Rotary Blood Pump.", ARTIFICIAL ORGANS., vol. 27, January 2003 (2003-01-01), pages 110, XP055263142
KAWAHITO, K ET AL.: "Hemolysis in Different Centrifugal Pumps.", ARTIFICIAL ORGANS., vol. 21, no. 4, April 1997 (1997-04-01), pages 323 - 326, XP055263143
JAMES, NL ET AL.: "Evaluation of Hemolysis In The VentrAssist Implantable Rotary Blood Pump.", ARTIFICIAL ORGANS., vol. 27, January 2003 (2003-01-01), pages 110, XP055263142
KAWAHITO, K ET AL.: "Hemolysis in Different Centrifugal Pumps.", ARTIFICIAL ORGANS., vol. 21, no. 4, April 1997 (1997-04-01), pages 323 - 326, XP055263143
Attorney, Agent or Firm:
DEAN III, Elton, F. (100 South Fourth StreetSuite 100, St. Louis Missouri, US)
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