Patents by Inventor Ronald M. Callanan

Ronald M. Callanan 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).

  • Endoscope with interlocking articulating deflection system
    Patent number: 5857964
    Abstract: An endoscope having a shaft with a deflectable section. The deflectable section has a plurality of rings movably connected in series to each other. The rings are connected to each other by first and second interlocking sections. The first interlocking sections have eyelet shaped sections. The second interlocking sections have tabs with sections larger than the windows in the eyelet shaped sections.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: January 12, 1999
    Assignee: Circon Corporation
    Inventors: Gregory S. Konstorum, Edward A. Grabover, Ronald M. Callanan, Carlo A. DiRusso
  • Flexible cryoprobe
    Patent number: 5108390
    Abstract: Cryosurgery may be performed by a microinvasive technique employing a novel cryosurgical probe. It is very thin, very long, and highly flexible. These characteristics are achieved by a construction consisting of a tube within a tube with no intermediate supporting elements therebetween. The probe is capable of being passed through a blood vessel and into the heart without external guidance other than the blood vessel itself.
    Type: Grant
    Filed: November 14, 1988
    Date of Patent: April 28, 1992
    Assignee: Frigitronics, Inc.
    Inventors: Clifford E. Potocky, Ronald M. Callanan, Raymond L. Goudreau