×

Impeller for a rotary ventricular assist device

  • US 8,419,609 B2
  • Filed: 10/05/2005
  • Issued: 04/16/2013
  • Est. Priority Date: 10/05/2005
  • Status: Active Grant
First Claim
Patent Images

1. A magnetically driven rotary ventricular assist device implantable in a patient and configured to pump blood of the patient, said device comprising:

  • a rotatable body formed entirely of heat treated biocompatible magnetizable platinum and cobalt alloy, said rotatable body having a shape by which each of a plurality of blood flow channels formed therein is configured to direct blood traversing a channel away from said body when said body is rotating within the assist device, selected portions of said body of magnetizable alloy being subjected to magnetization establishing magnetic bearings for support of said body when said body is rotating within the ventricular assist device and for inducing north magnetic poles and south magnetic poles for effecting one or more of a magnetic drive mechanism and an axial or radial orientation of said body within the assist device while rotating.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×