Patents by Inventor Boyce D. Richardson

Boyce D. Richardson 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).

  • Turn limiter for a catheter with twistable tip
    Patent number: 5352197
    Abstract: The present invention is a turn limiter for a catheter with a twistable tip. The catheter having a flexible wall for use in complex twisting anatomy contains a torque wire or a torquable guide wire lumen. The torque wire or torquable guide wire lumen extends through the length of the catheter and is attached to the catheter at or near the distal end thereof. The proximal end of the torque wire protrudes from the proximal end of the catheter and is attached to a turn limiter. Rotation of the turn limiter imparts a torque to the torque wire or torquable guide wire lumen. The turn limiter allows limited rotation of the proximal end of the torque wire or torquable guide wire lumen without axial dislocation. The turn limiter may have a feature for indicating the amount of torque applied to the torque element.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: October 4, 1994
    Assignee: The Spectranetics Corporation
    Inventors: Dan J. Hammersmark, John Lennox-Gentle, Kenneth P. Grace, Boyce D. Richardson, John G. Stine, Kevin D. Taylor, Matthew S. Solar