IMPELLER FOR CATHETER PUMP

• US 20170239406A1
• Filed: 05/08/2017
• Published: 08/24/2017
• Est. Priority Date: 05/14/2012
• Status: Active Grant

• Current Assignee: TC1 LLC (Abbott Laboratories Incorporated)
• Original Assignee: TC1 LLC (Abbott Laboratories Incorporated)
• Inventors: Zeng, Zijing, Yuen, Phyllis, Butler, Michael R.
• Granted Patent: US 10,039,872 B2
• Time in Patent Office: Days
• CPC Class Codes: A61M 2205/3334 Measuring or controlling the flow rate
• CPC Class Codes: A61M 60/13 by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system
• CPC Class Codes: A61M 60/148 in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices
• CPC Class Codes: A61M 60/174 discharging the blood to the ventricle or arterial system via a cannula internal to the ventricle or arterial system
• CPC Class Codes: A61M 60/216 including a rotating member acting on the blood, e.g. impeller
• CPC Class Codes: A61M 60/411 generated by an electromotor
• CPC Class Codes: A61M 60/414 transmitted by a rotating cable, e.g. for blood pumps mounted on a catheter
• CPC Class Codes: A61M 60/508 Electronic control means, e.g. for feedback regulation
• CPC Class Codes: A61M 60/546 of blood flow, e.g. by adapting rotor speed
• CPC Class Codes: A61M 60/806 Vanes or blades
• CPC Class Codes: A61M 60/808 specially adapted for deformable impellers, e.g. expandable impellers
• CPC Class Codes: A61M 60/81 Pump housings
• CPC Class Codes: A61M 60/857 Implantable blood tubes
• CPC Class Codes: F04C 2270/0421 Controlled or regulated
• CPC Class Codes: F04D 29/183 Semi axial flow rotors

Abstract

An impeller for a pump is disclosed herein. The impeller can include a hub having a fixed end and a free end. The impeller can also have a plurality of blades supported by the hub. Each blade can have a fixed end coupled to the hub and a free end. The impeller can have a stored configuration and a deployed configuration, the blades in the deployed configuration extending away from the hub, and the blades in the stored configuration being compressed against the hub.

Claims

1. (canceled)

2. An impeller for a catheter pump, the impeller comprising:

a hub having a proximal end portion and a distal end portion;

a plurality of blades supported by the hub, each blade of the plurality of blades comprising a curved surface having a radius of curvature, and a height defined as extending from a fixed end proximate the hub and a free end opposite the fixed end, wherein the radius of curvature and the height are selected such that the plurality of blades do not overlap when in a stored configuration.