Non-occluding intravascular blood pump providing reduced hemolysis

US11235138B2 · kind B2 · utility

Assignee

• Procyrion, Inc. · US

Inventors

• Sascha Gross-Hardt · Aachen, DE
• Tim Kaufmann · Aachen, DE
• William L. Clifton · Houston, US
• Benjamin A. Hertzog · Houston, US
• Jason J. Heuring · Houston, US

Key dates

• Filing date: Sep 26, 2016
• Grant date: Feb 1, 2022
• Expiry date: Feb 26, 2039

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2250/52
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A non-occluding intravascular pump comprises a shroud providing an inlet for incoming blood flow and an outlet for outgoing blood flow, wherein the shroud is a cylindrical housing; an impeller positioned within shroud, wherein a central axis of the shroud and impeller are shared; a motor coupled to the impeller, wherein the motor rotates the impeller to causes blood to be drawn through the inlet and output to the outlet, and the motor is centrally disposed and shares the central axis with the shroud and the impeller; and a plurality of pillars coupling the motor to the shroud, wherein the pillars secure the shroud in close proximity to the impeller. Various design features of the pump may be optimized to reduce hemolysis, such as, but not limited to, inlet length, impeller design, pillar angle, and outlet design.