Magnetically suspended rotor axial flow blood pump

Details Magnetically suspended rotor axial flow blood pump Magnetically suspended rotor axial flow blood pump

A - Human Necessities

61

M

3/115

A61M 1/12 (2006.01) A61M 1/10 (2006.01) F04D 3/00 (2006.01) F04D 29/04 (2006.01) F16C 39/06 (2006.01) H02K 5/128 (2006.01) H02K 7/09 (2006.01) A61M 25/00 (2006.01)

Patent

CA 1323467

8087.011 P-F ABSTRACT An implantable axial flow blood pump maximizes the blood flow while minimizing the dimensions of the pump. By magnetically suspending a rotor of relatively small diameter coaxially in a cylindrical blood conduit of substantially larger inner diameter, an adequate flow area through the pump is provided, and the need for bearings, lubrication and seal purging fluid is eliminated. This is made possible by the use of neodymium-boron-iron rotor magnets which allow a substantial gap between the static motor armature and the rotor. The rotor is simultaneously torqued and maintained in a position coaxial with the blood conduit by individually varying the current in the armature windings while they are being commutated. The position of the rotor axis is accurately sensed by placing magnetically permeable strips into opposite ends of the pump stator blades in such a manner that they transmit to Hall sensors variations in an annular magnetic field surrounding the rotor adjacent the ends of the pump stator blades.

563754

Affiliated with

Also associated with

Rating

Magnetically suspended rotor axial flow blood pump does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnetically suspended rotor axial flow blood pump, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetically suspended rotor axial flow blood pump will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1330545