Patent · US Active

Flow thru mechanical blood pump bearings

US10294944B2 · kind B2 · utility

2Cited by

30References

23Claims

0Family size

Assignee

EVERHEART SYSTEMS INC. · US

Inventors

Greg S. Aber · Houston, US
Allan S. Rhoades · Galveston, US

Key dates

Filing date	Mar 8, 2013
Grant date	May 21, 2019
Priority date	—
Expiry date	Feb 18, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF04D13/0633
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A flow thru mechanical bearing system can be used in an implantable rotary blood pump that includes a pump housing. An impeller housed in the pump housing can be radially supported by a row of at least three low friction contact points located on an inside bore of the impeller. The impeller may be axially supported by a second mechanical bearing. The second mechanical bearing may provide at least three axial contact points on the top surfaces of the impeller. The impeller is driven by a magnetic coupling which functions mainly to transmit torque to the impeller. Further, in some cases, the magnetic coupling may restrain axial motion of the impeller.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.