Patents by Inventor David Wrolstad

David Wrolstad 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).

  • Tube expansion processes for semicrystalline polymers to maximize fracture toughness
    Patent number: 9278477
    Abstract: Methods for fabricating a polymeric stent with improved fracture toughness including radial expansion of a polymer tube and fabricating a stent from the expanded tube are disclosed. The polymer tube is disposed within a mold and may be heated with radiation. The heated tube radially expands within the mold.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: March 8, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Lothar W. Kleiner, James P. Oberhauser, Thierry Glauser, David Wrolstad, Yunbing Wang
  • TUBE EXPANSION PROCESSES FOR SEMICRYSTALLINE POLYMERS TO MAXIMIZE FRACTURE TOUGHNESS
    Publication number: 20140374963
    Abstract: Methods for fabricating a polymeric stent with improved fracture toughness including radial expansion of a polymer tube and fabricating a stent from the expanded tube are disclosed. The polymer tube is disposed within a mold and may be heated with radiation. The heated tube radially expands within the mold.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Inventors: Lothar W. Kleiner, James P. Oberhauser, Thierry Glauser, David Wrolstad, Yunbing Wang
  • Biodegradable stent with enhanced fracture toughness
    Publication number: 20140128959
    Abstract: Stents and methods of manufacturing a stents with enhanced fracture toughness are disclosed.
    Type: Application
    Filed: October 9, 2013
    Publication date: May 8, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: David C. Gale, Bin Huang, Timothy A. Limon, Vincent J. Gueriguian, Anthony J. Abbate, Klaus Kleine, Stephen Schaible, Jonathan P. Durcan, Thierry Glauser, Bethany Steichen, James Oberhauser, Manish Gada, Lothar Kleiner, Mary Beth Kossuth, Yunbing Wang, Daniel Castro, David Wrolstad
  • Biodegradable stent with enhanced fracture toughness
    Publication number: 20140114394
    Abstract: Stents and methods of manufacturing a stents with enhanced fracture toughness are disclosed.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 24, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: David C. Gale, Bin Huang, Timothy A. Limon, Vincent J. Gueriguian, Anthony J. Abbate, Klaus Kleine, Stephen Schaible, Jonathan P. Durcan, Thierry Glauser, Bethany Steichen, James Oberhauser, Manish Gada, Lothar Kleiner, Mary Beth Kossuth, Yunbing Wang, Daniel Castro, David Wrolstad
  • Biodegradable stent with enhanced fracture toughness
    Publication number: 20140107762
    Abstract: Stents and methods of manufacturing a stents with enhanced fracture toughness are disclosed.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 17, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: David C. Gale, Bin Huang, Timothy A. Limon, Vincent J. Gueriguian, Anthony J. Abbate, Klaus Kleine, Stephen Schaible, Jonathan P. Durcan, Thierry Glauser, Bethany Steichen, James Oberhauser, Manish Gada, Lothar Kleiner, Mary Beth Kossuth, Yunbing Wang, Daniel Castro, David Wrolstad
  • Biodegradable stent with enhanced fracture toughness
    Publication number: 20140107761
    Abstract: Stents and methods of manufacturing a stents with enhanced fracture toughness are disclosed.
    Type: Application
    Filed: October 9, 2013
    Publication date: April 17, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: David C. Gale, Bin Huang, Timothy A. Limon, Vincent J. Gueriguian, Anthony J. Abbate, Klaus Kleine, Stephen Schaible, Jonathan P. Durcan, Thierry Glauser, Bethany Steichen, James Oberhauser, Manish Gada, Lothar Kleiner, Mary Beth Kossuth, Yunbing Wang, Daniel Castro, David Wrolstad
  • Textured polymer coated guide wire and method of manufacture
    Patent number: 8613712
    Abstract: A guide wire for advancing a medical device such as a catheter through a patient's body lumen which has an elongated core with proximal and distal core section, a flexible tubular member such as a coil on the distal end. The wire core includes surface textures that are translated into the overlying coating. Alternatively, the coating has its own surface texture. The surface textures include randomly or non-randomly spaced bumps, divots, ridges, helical grooves, longitudinal grooves, undulations, etc.
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: December 24, 2013
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: David H. Burkett, Kevin Britton, Ryan Grandfield, Peter J. D'Aquanni, David Wrolstad, Edwin P. Mahieu, Wayne E. Cornish, Mark T. Richardson
  • Balloon catheter having a branched distal section with secured branches
    Publication number: 20080009829
    Abstract: An improved stent design and stent delivery catheter assembly for repairing a main vessel and a side branch vessel forming a bifurcation. The stent includes rings aligned along a common longitudinal axis and connected by links, where the stent has one or more portals for aligning with and partially expanding into the opening to the side branch vessel. The stent is implanted at a bifurcation so that the main stent section is in the main vessel, and the portal section covers at least a portion of the opening to the side branch vessel. A second stent can be implanted in the side branch vessel and abut the expanded central section to provide full coverage of the bifurcated area in the main vessel and the side branch vessel. Radiopaque markers on the stent and on the tip of the delivery catheter assist in aligning the portal section with the opening to the side branch vessel.
    Type: Application
    Filed: July 30, 2007
    Publication date: January 10, 2008
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Diem Ta, Caroline WU, Brenna Hearn, Daniel Cox, Leonard Barbod, Jessie Delgado, Stephen Pacetti, Thomas Hatten, David Wrolstad, Kenneth Armstrong, Darrin Kent
  • TEXTURED POLYMER COATED GUIDE WIRE AND METHOD OF MANUFACTURE
    Publication number: 20070255217
    Abstract: A guide wire for advancing a medical device such as a catheter through a patient's body lumen which has an elongated core with proximal and distal core section, a flexible tubular member such as a coil on the distal end. The wire core includes surface textures that are translated into the overlying coating. Alternatively, the coating has its own surface texture. The surface textures include randomly or non-randomly spaced bumps, divots, ridges, helical grooves, longitudinal grooves, undulations, etc.
    Type: Application
    Filed: June 13, 2007
    Publication date: November 1, 2007
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: David Burkett, Kevin Britton, Ryan Grandfield, Peter D'Aquanni, David Wrolstad, Edwin Mahieu, Wayne Cornish, Mark Richardson