Patents by Inventor Kazumasa Morinaga

Kazumasa Morinaga 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).

  • Ultrasonic doppler blood flow detector for hemorrhoid artery ligation
    Patent number: 5570692
    Abstract: An ultrasonic doppler blood flow detector used for hemorrhoid artery ligation having a hollow insertion cylinder which is enclosed at the distal end and open at the near end, and can be inserted through the anus; the cylinder has an ultrasound transducer in its interior wall, for detecting blood flow in the affected artery, and a ligation hole next to the transducer, through which the detected artery is ligated with ligation device, such as a curved needle or a wire for cautery.
    Type: Grant
    Filed: May 19, 1995
    Date of Patent: November 5, 1996
    Assignee: Hayashi Denki Co. Ltd.
    Inventor: Kazumasa Morinaga