Patents by Inventor Hisayoshi Suma

Hisayoshi Suma 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: 4654028
    Abstract: An incision opening expansion holder for use surgical operation, especially for inosculation comprising an outer tube being capable of inserting into the lumen of a vein graft, an inner tube slidably inserting into the outer tube and a grip being fixed to one end of the inner tube, the inner tube has a plurality of short wires, the bases of which are fixed to the other end of the inner tube and each wire is to be energized to expand so as to hold the incision opening of the vein graft open when the holder is inserted into the lumen and also when the wires of the inner tube are projected out of the outer tube by handling the grip, so that inosculation operation can be undertaken under good visual field and surgeons can observe easily the piercing point of sewing of the vein graft.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: March 31, 1987
    Inventor: Hisayoshi Suma