System for driving a pulsatile fluid pump

US11300119B1 · kind B1 · utility

Assignee

• VentriFlo, Inc. · US

Inventors

• Douglas E. Vincent · Manchester, US
• Brian Bailey · Chelmsford, US
• Conrad Bzura · Melrose, US
• David Olney · Chester, US
• Eric Smith · Newburyport, US
• Jeffrey P. Naber · Mont Vernon, US
• Judy Labonté · Hudson, US
• Kathleen Vincent · Pelham, US
• Matthew Murphy · Los Altos, US
• Patrick Shields · Scottsdale, US

Key dates

• Filing date: Feb 23, 2021
• Grant date: Apr 12, 2022
• Expiry date: Feb 23, 2041

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F04B2207/00
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A pulsatile fluid pump system for driving a fluid pump assembly includes a reciprocating linear motor having a magnet and a coil, the magnet moving in relation to the coil, the coil having an electrical input. The pulsatile fluid pump system further includes a controller system having an electrical output coupled to the electrical input of the coil, and the controller system is configured to execute a waveform program defining an electrical waveform at the electrical output. The waveform program is configured to control operation of the linear motor by modification of a feature, selected from the group consisting of amplitude, frequency, shape, and combinations thereof, of the electrical waveform at the electrical output. The waveform program is further configured to accept a set of user-specifiable parameters defining the performance of the linear motor and to modify the electrical waveform in response to such parameters.