Patents by Inventor John Santangelo

John Santangelo 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).

  • Low wear bearing for a surgical retractor
    Patent number: 5067477
    Abstract: A low wear bearing system for a surgical retractor including usually four bearings recessed in the retractor housing, each bearing having a generally rectangular projection extending into a corresponding slot in the rack of the rack and pinion type retractor. There are two bearings on each side of the rack spaced longitudinally along the rack. The bearings provide an enlarged buffer area of contact between the rack and the housing to distribute the relatively high internal retraction forces that can be experienced during tissue retraction.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: November 26, 1991
    Assignee: Codman & Shurtleff, Inc.
    Inventor: John Santangelo