Patents by Inventor Premindra Chandraratna

Premindra Chandraratna has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20060241522
    Abstract: Therapeutic ultrasound devices and methods are provided. The device (10) generally includes a substrate, for example, a flexible substrate (14), and multiple, individual transducer elements (16a, 16b, 16c) disposed on a face (18) of the substrate (14). The device may be provided as a part of an ultrasound system for that includes a generator unit and a controller including drive electronics. The device and method is especially useful for the treatment of ischemia and hypoxia using ultrasound levels that are generally no greater than those used for diagnostic purposes.
    Type: Application
    Filed: June 18, 2004
    Publication date: October 26, 2006
    Inventor: Premindra Chandraratna
  • Patent number: 6048319
    Abstract: Method and apparatus for detecting coronary stenosis. The apparatus comprises an acoustic sensor and a microcomputer that identifies the standard S1 and S2 heart sounds, heart rate, and determines the diastolic interval of the subject and thereafter estimates the acoustic energy levels within a 2 octave band around approximately 20 Hz during diastole. Based upon such estimation, a diagnosis can be rendered as to the presence and degree of stenosis from the coronary artery.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: April 11, 2000
    Assignee: Integrated Medical Systems, Inc.
    Inventors: Lonnie H. Hudgins, Premindra A. Chandraratna