Patents by Inventor Robert G. Lerdahl

Robert G. Lerdahl 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: 10350393
    Abstract: A device for winding a filament around a structure disposed concentrically around a distal end of a balloon catheter includes a rotatable holder for retaining a distal end of the balloon catheter, a translatable winding carriage for helically winding the tensioned filament around the balloon catheter distal end, a heater for applying a predetermined amount of heat to a section of the balloon catheter having the filament wound therearound, and a controller for controlling at least the rate of rotation of the holder, the tensioning force applied to the filament, the amount of heat applied by the heater, and the rate of travel of the translatable winding carriage along the longitudinal dimension of the balloon catheter. By use of the device, the balloon is heat set and a predetermined checkering pattern of surface indentations are provided in the structure exterior surface in a single pass.
    Type: Grant
    Filed: April 24, 2017
    Date of Patent: July 16, 2019
    Assignee: C.R. BARD, INC.
    Inventors: David M. Graves, William E. Parmentier, Robert G. Lerdahl, Phillip E. Carr, Jo Ann Kelly
  • Patent number: 10098772
    Abstract: A stent graft is disclosed and can include a stent and a graft engaged with the stent. The graft can include an inner surface and an outer surface. Further, at least one of the inner surface and the outer surface can include a plurality of protrusions as viewed in cross section extending through a longitudinal axis.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: October 16, 2018
    Assignee: C. R. Bard, Inc.
    Inventors: Robert G. Lerdahl, Chandrashekhar Prabhakar Pathak, R. Michael Casanova
  • Publication number: 20170224966
    Abstract: A device for winding a filament around a structure disposed concentrically around a distal end of a balloon catheter includes a rotatable holder for retaining a distal end of the balloon catheter, a translatable winding carriage for helically winding the tensioned filament around the balloon catheter distal end, a heater for applying a predetermined amount of heat to a section of the balloon catheter having the filament wound therearound, and a controller for controlling at least the rate of rotation of the holder, the tensioning force applied to the filament, the amount of heat applied by the heater, and the rate of travel of the translatable winding carriage along the longitudinal dimension of the balloon catheter. By use of the device, the balloon is heat set and a predetermined checkering pattern of surface indentations are provided in the structure exterior surface in a single pass.
    Type: Application
    Filed: April 24, 2017
    Publication date: August 10, 2017
    Inventors: David M. Graves, William E. Parmentier, Robert G. Lerdahl, Phillip E. Carr, Jo Ann Kelly
  • Patent number: 9643235
    Abstract: A device for winding a filament around a structure disposed concentrically around a distal end of a balloon catheter includes a rotatable holder for retaining a distal end of the balloon catheter, a translatable winding carriage for helically winding the tensioned filament around the balloon catheter distal end, a heater for applying a predetermined amount of heat to a section of the balloon catheter having the filament wound therearound, and a controller for controlling at least the rate of rotation of the holder, the tensioning force applied to the filament, the amount of heat applied by the heater, and the rate of travel of the translatable winding carriage along the longitudinal dimension of the balloon catheter. By use of the device, the balloon is heat set and a predetermined checkering pattern of surface indentations are provided in the structure exterior surface in a single pass.
    Type: Grant
    Filed: February 24, 2014
    Date of Patent: May 9, 2017
    Assignee: C.R. BARD, INC.
    Inventors: David M. Graves, William E. Parmentier, Robert G. Lerdahl, Phillip E. Carr, Jo Ann Kelly
  • Publication number: 20140166152
    Abstract: A device for winding a filament around a structure disposed concentrically around a distal end of a balloon catheter includes a rotatable holder for retaining a distal end of the balloon catheter, a translatable winding carriage for helically winding the tensioned filament around the balloon catheter distal end, a heater for applying a predetermined amount of heat to a section of the balloon catheter having the filament wound therearound, and a controller for controlling at least the rate of rotation of the holder, the tensioning force applied to the filament, the amount of heat applied by the heater, and the rate of travel of the translatable winding carriage along the longitudinal dimension of the balloon catheter. By use of the device, the balloon is heat set and a predetermined checkering pattern of surface indentations are provided in the structure exterior surface in a single pass.
    Type: Application
    Filed: February 24, 2014
    Publication date: June 19, 2014
    Applicant: C.R. BARD, INC.
    Inventors: David M. Graves, William E. Parmentier, Robert G. Lerdahl, Phillip E. Carr, Jo Ann Kelly
  • Patent number: 8673200
    Abstract: A device for winding a filament around a structure disposed concentrically around a distal end of a balloon catheter includes a rotatable holder for retaining a distal end of the balloon catheter, a translatable winding carriage for helically winding the tensioned filament around the balloon catheter distal end, a heater for applying a predetermined amount of heat to a section of the balloon catheter having the filament wound therearound, and a controller for controlling at least the rate of rotation of the holder, the tensioning force applied to the filament, the amount of heat applied by the heater, and the rate of travel of the translatable winding carriage along the longitudinal dimension of the balloon catheter. By use of the device, the balloon is heat set and a predetermined checkering pattern of surface indentations are provided in the structure exterior surface in a single pass.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: March 18, 2014
    Assignee: C.R. Bard, Inc.
    Inventors: David M. Graves, William E. Parmentier, Robert G. Lerdahl, Phillip E. Carr, Jo Ann Kelly
  • Publication number: 20120291957
    Abstract: A device for winding a filament around a structure disposed concentrically around a distal end of a balloon catheter includes a rotatable holder for retaining a distal end of the balloon catheter, a translatable winding carriage for helically winding the tensioned filament around the balloon catheter distal end, a heater for applying a predetermined amount of heat to a section of the balloon catheter having the filament wound therearound, and a controller for controlling at least the rate of rotation of the holder, the tensioning force applied to the filament, the amount of heat applied by the heater, and the rate of travel of the translatable winding carriage along the longitudinal dimension of the balloon catheter. By use of the device, the balloon is heat set and a predetermined checkering pattern of surface indentations are provided in the structure exterior surface in a single pass.
    Type: Application
    Filed: July 31, 2012
    Publication date: November 22, 2012
    Inventors: David M. Graves, William E. Parmentier, Robert G. Lerdahl, Phillip E. Carr, Jo Ann Kelly
  • Patent number: 8236223
    Abstract: A device for winding a filament around a structure disposed concentrically around a distal end of a balloon catheter includes a rotatable holder for retaining a distal end of the balloon catheter, a translatable winding carriage for helically winding the tensioned filament around the balloon catheter distal end, a heater for applying a predetermined amount of heat to a section of the balloon catheter having the filament wound therearound, and a controller for controlling at least the rate of rotation of the holder, the tensioning force applied to the filaments the amount of heat applied by the heater, and the rate of travel of the translatable winding carriage along the longitudinal dimension of the balloon catheter. By use of the device, the balloon is heat set and a predetermined checkering pattern of surface indentations are provided in the structure exterior surface in a single pass.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: August 7, 2012
    Assignee: C.R. Bard, Inc.
    Inventors: David M. Graves, William E. Parmentier, Robert G. Lerdahl, Phillip E. Carr, Jo Ann Kelly
  • Publication number: 20110000604
    Abstract: A device for winding a filament around a structure disposed concentrically around a distal end of a balloon catheter includes a rotatable holder for retaining a distal end of the balloon catheter, a translatable winding carriage for helically winding the tensioned filament around the balloon catheter distal end, a heater for applying a predetermined amount of heat to a section of the balloon catheter having the filament wound therearound, and a controller for controlling at least the rate of rotation of the holder, the tensioning force applied to the filaments the amount of heat applied by the heater, and the rate of travel of the translatable winding carriage along the longitudinal dimension of the balloon catheter. By use of the device, the balloon is heat set and a predetermined checkering pattern of surface indentations are provided in the structure exterior surface in a single pass.
    Type: Application
    Filed: July 2, 2009
    Publication date: January 6, 2011
    Inventors: David M. Graves, William E. Parmentier, Robert G. Lerdahl, Phillip E. Carr, Jo Ann Kelly
  • Publication number: 20100256669
    Abstract: A vena cava filter is described, having at least one member arranged helically along a longitudinal axis of the filter. The filter may include a plurality of legs around which is arranged one or more filaments traveling in a helical path, or an elongated wire member arranged to define a first and second helecal path. The filter may include hooks and/or a retreival member.
    Type: Application
    Filed: November 28, 2006
    Publication date: October 7, 2010
    Applicant: C.R. Bard, Inc.
    Inventors: Keith S. Harris, Robert G. Lerdahl, Khoi Q. Ta
  • Publication number: 20090099642
    Abstract: A stent graft is disclosed and can include a stent and a graft engaged with the stent. The graft can include an inner surface and an outer surface. Further, at least one of the inner surface and the outer surface can include a plurality of protrusions as viewed in cross section extending through a longitudinal axis.
    Type: Application
    Filed: October 10, 2007
    Publication date: April 16, 2009
    Applicant: C.R. Bard, Inc.
    Inventors: Robert G. Lerdahl, Chandrashekhar P. Pathak, R. Michael Casanova