Patents by Inventor Fansan Zhu

Fansan Zhu 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: 20040242989
    Abstract: A system for performing electrical impedance tomography. The system includes a first set of electrodes positioned in a first plane and a second set of electrodes positioned in a second plane. The system also includes a third set of electrodes positioned in a third plane between the first and second planes. The third set of electrodes is rotatable around an axis intersecting the third plane. Furthermore, the third set of electrodes may be moveable in an axial direction between the first and second planes to various other planes, e.g., a fourth plane, a fifth plane, etc. The processor is further configured to process the voltage measurements taken by the voltage measurement device so as to generate a current density distribution in the various other planes. In addition, the processor is further configured to generate a three-dimensional image corresponding to the current density distribution between the first and second planes.
    Type: Application
    Filed: March 25, 2004
    Publication date: December 2, 2004
    Inventors: Fansan Zhu, Nathan W. Levin
  • Patent number: 6615077
    Abstract: The present invention includes a method of determining the dry body weight of a patient undergoing dialysis by means of segmental bioimpedance analysis. In preferred embodiments, dry body weight is determined by comparison to the bioimpedance values of normal subjects or by monitoring changes in bioimpedance during dialysis. One embodiment of the present invention is a device for determining dry body weight during dialysis.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: September 2, 2003
    Assignee: Renal Research Institute, LLC
    Inventors: Fansan Zhu, Nathan W. Levin
  • Publication number: 20030120170
    Abstract: The present invention includes a method of determining the dry body weight of a patient undergoing dialysis by means of segmental bioimpedance analysis. In preferred embodiments, dry body weight is determined by comparison to the bioimpedance values of normal subjects or by monitoring changes in bioimpedance during dialysis. One embodiment of the present invention is a device for determining dry body weight during dialysis.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 26, 2003
    Inventors: Fansan Zhu, Nathan W. Levin