Patents by Inventor Shoufu ZHANG

Shoufu ZHANG 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).

  • Circumcision stapler
    Patent number: 9855073
    Abstract: A circumcision stapler comprises three parts: an upper stapler, a lower stapler and a rivet fastening and regulating member, wherein an outer knife, an inner knife anti-skidding groove, an anti-skidding bulge, a frenum protecting part and a plurality of rivet holes with same sizes are arranged on the upper stapler; an inner knife, an outer knife anti-skidding groove, an anti-skidding bulge, a frenum protecting part and a plurality of rivet holes with same sizes, and a rivet fastening column are arranged on the lower stapler.
    Type: Grant
    Filed: May 7, 2015
    Date of Patent: January 2, 2018
    Inventor: Shoufu Zhang
  • CIRCUMCISION STAPLER
    Publication number: 20150313625
    Abstract: A circumcision stapler comprises three parts: an upper stapler, a lower stapler and a rivet fastening and regulating member, wherein an outer knife, an inner knife anti-skidding groove, an anti-skidding bulge, a frenum protecting part and a plurality of rivet holes with same sizes are arranged on the upper stapler; an inner knife, an outer knife anti-skidding groove, an anti-skidding bulge, a frenum protecting part and a plurality of rivet holes with same sizes, and a rivet fastening column are arranged on the lower stapler.
    Type: Application
    Filed: May 7, 2015
    Publication date: November 5, 2015
    Inventors: Shoufu ZHANG, Lunxiang ZHANG