×

Fluid pump with a rotor

  • US 9,964,115 B2
  • Filed: 04/27/2017
  • Issued: 05/08/2018
  • Est. Priority Date: 12/05/2008
  • Status: Active Grant
First Claim
Patent Images

1. A percutaneous pump, comprising:

  • a rotor with a hub and a helical rotor blade for conveying fluid, the rotor having a compressed state, a first expanded state, and a second expanded state, wherein the helical rotor blade spans at least 180 degrees and the helical rotor blade is connected to the hub along a line forming a helix on a surface of the hub, the helical rotor blade being configured to pivot about the line on the surface of the hub;

    wherein the rotor is configured to increase in diameter between the compressed state and the first expanded state;

    wherein the rotor is configured to increase in diameter between the first expanded state and the second expanded state while the helical rotor blade conveys fluid in a first rotational direction, said increase in diameter from the first expanded state due at least in part to fluid counterpressure acting against a leading side of the helical rotor blade in a second direction counter to the first rotational direction.

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