Title:
HEART PUMP WITH IMPELLER ROTATIONAL SPEED CONTROL
Document Type and Number:
WIPO Patent Application WO/2017/120451
Kind Code:
A3
Abstract:
A heart pump including a housing forming a cavity including at least one inlet and at least one outlet, an impeller provided within the cavity, the impeller including vanes for urging fluid from the inlet to the outlet upon rotation of the impeller, a drive that rotates the impeller within the cavity, a magnetic bearing including at least one bearing coil that controls an axial position of the impeller within the cavity and a controller. The controller includes an electronic processing device that monitors changes in a bearing indicator in response to a perturbation in blood flow, the bearing indicator being at least partially indicative of operation of the magnetic bearing and controls the drive to thereby selectively change a rotational speed of the impeller at least partially in accordance with changes in the bearing indicator.
Inventors:
GREATREX NICHOLAS (AU)
TIMMS DANIEL (US)
KLEINHEYER MATTHIAS (AU)
TIMMS DANIEL (US)
KLEINHEYER MATTHIAS (AU)
Application Number:
PCT/US2017/012506
Publication Date:
August 10, 2017
Filing Date:
January 06, 2017
Export Citation:
Assignee:
BIVACOR INC (US)
International Classes:
A61M60/178; A61M60/216; A61M60/422; A61M60/822
Foreign References:
| US20020094281A1 | 2002-07-18 | |||
| US20140100413A1 | 2014-04-10 | |||
| US20120245680A1 | 2012-09-27 |
Attorney, Agent or Firm:
GOMEZ, Martin et al. (US)
Download PDF: