Patents by Inventor Nai H. Li

Nai H. Li 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: 4747407
    Abstract: A kit for the anastomosing of a blood vessel which includes a pair of anastomic wheels. Each wheel has an axially extending hollow body for the passing of a blood vessel therethrough and a peripheral extending flange. The periphery of the flange has a plurality of forwardly extending pins for piercing and holding the wall of a blood vessel passing through the hollow body and stretched outwardly across the flange and impaled on the pins, the wheels with the blood vessel end impaled on the pins thereof being brought together with the flanges abutting and the projecting pins on the flanges being bent over the opposing flange with the stretched blood vessel wall therebetween to join the blood vessel walls. Also included are a hook and pressing needle for stretching and impaling the blood vessel ball on the pins; and clasping pliers for clasping the wheels and bending the pins.
    Type: Grant
    Filed: June 2, 1986
    Date of Patent: May 31, 1988
    Assignee: The Field Surgery Research Department of the Third Military Medical University
    Inventors: Ying B. Liu, Heng W. Yang, Shu L. Ma, Shi Z. Liu, Nai H. Li