Patents by Inventor A. Lane Keith

A. Lane Keith 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).

  • Variable stiffness microtubing and methods of manufacture
    Patent number: 6841214
    Abstract: A novel composite microtubing with variable stiffness over the length of the tubing and continuous process for manufacturing the same is provided. By removing portions of one or more selected layers of the composite microtubing, varying the pick count of a braided layer, and changing the diameter over the length of the microtubing, the stiffness of the microtubing may be varied by a factor of 100 from proximal end to distal end. The continuous process allows a predetermined stiffness pattern to be repeated over a measured length for economical manufacture and results, if desired, in tubing of extremely small diameter and extremely thin tube walls.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 11, 2005
    Assignee: MedSource Trenton, Inc.
    Inventors: Lane A. Keith, Gary G. Massengale, John T. Riddle, Ronald B. Roth
  • Variable stiffness microtubing and method of manufacture
    Patent number: 6616996
    Abstract: A novel composite microtubing with variable stiffness over the length of the tubing and continuous process for manufacturing the same is provided. By removing portions of one or more selected layers of the composite microtubing, varying the pick count of a braided layer, and changing the diameter over the length of the microtubing, the stiffness of the microtubing may be varied by a factor of 100 from proximal end to distal end. The continuous process allows a predetermined stiffness pattern to be repeated over a measured length for economical manufacture and results, if desired, in tubing of extremely small diameter and extremely thin tube walls.
    Type: Grant
    Filed: October 28, 1994
    Date of Patent: September 9, 2003
    Assignee: Medsource Trenton, Inc.
    Inventors: Lane A. Keith, Gary G. Massengale, John T. Riddle, Ronald B. Roth
  • Manufacture of variable stiffness microtubing
    Patent number: 6314856
    Abstract: A process for manufacturing novel composite microtubing with variable stiffness over the length of the tubing. By varying the pick count of a braided layer the stiffness of the microtubing may be varied by a factor of 100 from proximal end to distal end. The continuous process allows a predetermined stiffness pattern to be repeated over a measured length for economical manufacture and results, if desired, in tubing of extremely small diameter and extremely thin tube walls.
    Type: Grant
    Filed: November 18, 1998
    Date of Patent: November 13, 2001
    Assignee: HV Technologies, Inc.
    Inventors: A. Lane Keith, Gary G. Massengale, John T. Riddle, Ronald B. Roth
  • Process of making a catheter
    Patent number: 6045734
    Abstract: A catheter for intravascular use including an inner sleeve defining a hollow lumen and a middle sleeve which is disposed on the inner sleeve and includes a braided metal wire layer. Disposed on the middle sleeve is an outer sleeve which is preferably fabricated from a polyurethane material. The catheter has an outer diameter of 0.010 to 0.035 inches and a wall thickness which does not exceed 0.0035 inches.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: April 4, 2000
    Assignee: Becton Dickinson and Company
    Inventors: Ronald B. Luther, Richard A. Overton, Charles W. Dickerson, Lane Keith, Ron Roth, Bruce Nichols
  • Manufacture of variable stiffness microtubing
    Patent number: 5888436
    Abstract: A method for manufacturing novel composite microtubing with variable stiffness over the length of the tubing and a continuous manufacturing process.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: March 30, 1999
    Assignee: HV Technologies, Inc.
    Inventors: A. Lane Keith, Gary G. Massengale, John T. Riddle, Ronald B. Roth