Patents by Inventor Winston Kam Yew Chan

Winston Kam Yew Chan 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: 6162237
    Abstract: A temporary stent for use in retrohepatic IVC or hepatic vein injury which is capable of expanding to the appropriate size of a blood vessel without reducing preload. According to the preferred first embodiment, the stent includes an outer sheath made of a very thin, expandable and impermeable material. An internal skeleton is comprised of a plurality of axial support members. At one end the axial support members terminate collectively on an inner guide wire. At the other end the axial support members terminate collectively on an outer guide wire. In a second embodiment, a rotatable gear arrangement is provided with two shafts for selectively playing out and reeling in an expandable sheath. According to this embodiment, the stent sheath is movable between a rolled position and an unrolled position and is unrolled once delivered to the desired site.
    Type: Grant
    Filed: April 19, 1999
    Date of Patent: December 19, 2000
    Inventor: Winston Kam Yew Chan