Patents Assigned to John W. Royalty
  • Electromagnetic bi-ventricular assist device
    Patent number: 5498228
    Abstract: A device and method for assisting ventricular output in a human heart by compressing the heart. In the method, an electrocardiogram is generated as a function of the electrical activity of the heart, and an electromagnetic field is generated as a function of the electrocardiogram. A magnetic mat is moved towards the vertebral body to compress the heart therebetween in response to application of the electromagnetic field thereto. The device includes a transducer and control circuit to regulate the compressive force applied to the heart.
    Type: Grant
    Filed: August 8, 1994
    Date of Patent: March 12, 1996
    Assignee: John W. Royalty
    Inventors: John W. Royalty, James M. B. Royalty, Lawrence A. Lynn