Patents by Inventor Edward H. McHugh

Edward H. McHugh 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: 4203444
    Abstract: A surgical instrument useful in joint surgery for instance closed surgery of the knee. When in the form of a rotary vacuum shaver it comprises an external stationary tube having a side-facing, axially extending shaving port and an internal rotary blade capable of rotating at a slow speed, of the order of 200 rpm or below. Radial bearing portions at both proximal and distal ends radially support the blade in shearing relation to the external tube. A vacuum conduit draws fluid and articles to be shaved into the shaving port, and draws discrete shavings through the instrument, while the blade is driven at shearing speeds.
    Type: Grant
    Filed: November 7, 1977
    Date of Patent: May 20, 1980
    Assignee: Dyonics, Inc.
    Inventors: Leonard J. Bonnell, Edward H. McHugh, Douglas D. Sjostrom, Lanny L. Johnson