Patents by Inventor Shih-Kang Liang

Shih-Kang Liang 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).

  • Patent number: 5891065
    Abstract: The present invention is a vehicle having a mobile extremity pumping apparatus mounted thereon. The mobile extremity pumping apparatus comprises a control module, a driver module and one or more compression units. A two-layer bladder assembly is positioned between the inner layer and the outer shell comprising precompression and compression bladder layers. The precompression bladder layer extends longitudinally along the person's extremity with the individual bladders each wrapping around and arranged sequentially along the extremity. The precompression bladder layer is surrounded by a compression bladder layer mounted between the precompression bladder layer and the outer shell. A pump in the driver module compresses the media, which may be water, air, or similar media, and directs the compressed media to a manifold for distribution to each valve in the driver module.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: April 6, 1999
    Assignee: Spinal Cord Society
    Inventors: Vikram Cariapa, Dean C. Jeutter, Shih-Kang Liang
  • Patent number: 5437610
    Abstract: A portable, hydraulic extremity pump apparatus for treatment of edema is disclosed. The apparatus consists of a flexible compression unit that wraps around an individual's extremity. The compression unity has a plurality of prefill bladders each containing a separate compression bladder. The bladders are connected to a hydraulic pump through valves. Pressure sensors are connected to prefill bladders. The valves, the pump and the pressure sensors are all connected to a programmable control processor to operate the valves and pump and to monitor the bladder pressures. The valves to the prefill bladders are closed at an appropriate pressurization and the pump is shut down to mold the compression unit around the extremity. The occurrence of edema may then be detected by the monitoring of the pressure in the prefill bladders.
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: August 1, 1995
    Assignee: Spinal Cord Society
    Inventors: Vikram Cariapa, Dean C. Jeutter, Shih-Kang Liang