Patents by Inventor Sheldon S. Chang

Sheldon S. Chang 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).

  • Device for cardiac restoration
    Patent number: 7029433
    Abstract: The invention herein is an enhanced VAD device (EVAD), for a physician to use to restore a dysfunctioning native heart with severe muscular damages to good health, so that the EVAD can be explanted eventually. The EVAD device comprises one or two VAD(s) a pacemaker for sending electrical pulses to the native heart, a first monitor for monitoring the patient's response to each of said electrical pulses from the pacemaker, ccntrolled means a set of attachments for measuring biological and or clinical signals at various organs both inside and outside the patient's body, and a controller for facilitating the physician's work.
    Type: Grant
    Filed: March 16, 2002
    Date of Patent: April 18, 2006
    Inventor: Sheldon S. Chang
  • Device for cardiac restoration
    Publication number: 20030187481
    Abstract: The invention herein is an enhanced VAD device (EVAD), for a physician to use to restore a dysfunctioning native heart with severe muscular damages to good health, so that the EVAD can be explanted eventually. The EVAD device comprises one or two VAD(s), a controlled means for sending electrical pulses to the native heart, a graphical means for monitoring the patient's response to each of said electrical pulses from the controlled means, a set of attachments for measuring biological and/or clinical signals at various organs both inside and outside the patient's body, and electronic means for facilitating the physician's work.
    Type: Application
    Filed: March 16, 2002
    Publication date: October 2, 2003
    Inventor: Sheldon S. Chang