Patents Assigned to Andrew Valenti
  • Bone boring instrument
    Patent number: 4782833
    Abstract: An instrument for the boring of bones to remove a cylindrical section of bone for medical purposes has a one-way drive means which allows the surgeon to oscillate his hand motion while the instrument cuts bone in one direction only. The instrument has a trephine engaging mechanism which allows for the interchangeability of trephines so that a plurality of different types and sizes of trephines can be used to obtain bone cores from a range of bone types.
    Type: Grant
    Filed: February 19, 1987
    Date of Patent: November 8, 1988
    Assignees: Thomas A. Einhorn, Andrew Valenti
    Inventors: Thomas A. Einhorn, Andrew Valenti, Matthew Alves