Patents by Inventor Peter J. Marsland

Peter J. Marsland 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: 4072041
    Abstract: Surgical needles are attached to sutures with controlled pull-out characteristics by a short crimp--that is a crimp whose length is markedly less than the length of the end of the suture in the needle; with an essentially undistorted portion of the needle adjacent to where the suture emerges from the needle, and an essentially undistorted portion around the front of the suture, so that only a short section of the needle is crimped around the suture. This leaves the suture uncrushed where it emerges from the needle and hence of superior strength where sharp bends occur during use. It also leaves an undistorted portion of the suture ahead of the crimp so that on pull-out, the suture is retained not only by frictional engagement of the crimp but also by the forces required for the distortion of the head of the suture so that it will pull through the reduced section of the crimp.
    Type: Grant
    Filed: December 16, 1976
    Date of Patent: February 7, 1978
    Assignee: American Cyanamid Company
    Inventors: John R. Hoffman, Peter J. Marsland