Patents by Inventor Kulbir Singh Hunjan

Kulbir Singh Hunjan 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).

  • Bidirectional steerable catheter with deflectable distal tip
    Patent number: 5906590
    Abstract: A bidirectional catheter with a deflectable tip at a distal end includes a handle at a proximal end and a tubular member extending between the tip and the handle. The handle includes a first piston member slidably mounted in a handle base with proximal ends of steering wires secured in the handle. The steering wires extend through the tubular member with respective distal ends thereof secured to circumferentially spaced portions of the distal end tip. Axial displacement of the piston member in a second direction conversely urges deflection of the distal end tip in a second direction by tensioning the other wire relative to the first wire. The piston member can include another piston member slidable in the first piston member with the proximal ends of the steering wires secured in the first mentioned piston member and the handle member, respectively, and with the other piston member supporting a proximal end of the tubular member.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: May 25, 1999
    Assignee: EP Technologies, Inc.
    Inventors: Kulbir Singh Hunjan, Josef V. Koblish, Thomas P. Coen
  • Bidirectional steerable catheter with deflectable distal tip
    Patent number: 5656030
    Abstract: A bidirectional catheter with a deflectable tip at a distal end includes a handle at a proximal end and a tubular member extending between the tip and the handle. The handle includes a first piston member slidably mounted in a handle base with proximal ends of steering wires secured in the handle. The steering wires extend through the tubular member with respective distal ends thereof secured to circumferentially spaced portions of the distal end tip. Axial displacement of the piston member in a second direction conversely urges deflection of the distal end tip in a second direction by tensioning the other wire relative to the first wire. The piston member can include another piston member slidable in the first piston member with the proximal ends of the steering wires secured in the first mentioned piston member and the handle member, respectively, and with the other piston member supporting a proximal end of the tubular member.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: August 12, 1997
    Assignee: Boston Scientific Corporation
    Inventors: Kulbir Singh Hunjan, Josef V. Koblish, Thomas P. Coen