Patents Assigned to Hiroyasu Kamiyama
  • Patent number: 5151102
    Abstract: A blood vessel coagulation/stanching device for flowing high-frequency current between a pair of forceps with a blood vessel being held between the ends of the forceps to cauterize, coagulate and stanch the blood vessel, the device being characterized in that the blood vessel holding section of the forceps comprises a blood vessel contact member made of an electrically insulating sintered substance with a low thermal conductivity, and the blood vessel contact member being provided on its surface with exposed electrodes at an areal ratio between 5% and 60% to the entire surface of the blood vessel contact member. With this device, the blood vessel contact section of the forceps is not excessively heated, preventing a blood vessel from burning. This eliminates any stanching failure due to removal of a coagulated blood vessel portion and ensures superior coagulation and stanching.
    Type: Grant
    Filed: May 31, 1990
    Date of Patent: September 29, 1992
    Assignees: Kyocera Corporation, Hiroyasu Kamiyama
    Inventors: Hiroyasu Kamiyama, Hirokazu Amino