Patents by Inventor Dudley Jayasinghe

Dudley Jayasinghe 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).

  • BALLOON EXPANDED POLYMER STENT
    Publication number: 20220226133
    Abstract: A stent made from a material comprising a polymer is disclosed. The stent has a pre-crimp diameter and a wall thickness such that a ratio of the pre-crimp diameter to the wall thickness is between 30 and 60. The stent has a pattern of interconnected elements. The interconnected elements including a plurality of rings connected by links, wherein each ring includes struts and crowns, and the struts are configured to fold at the crowns when the stent is crimped to the balloon.
    Type: Application
    Filed: April 6, 2022
    Publication date: July 21, 2022
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • Balloon expanded polymer stent
    Patent number: 11324614
    Abstract: A medical device includes a polymer stent (or scaffold) crimped to a catheter balloon. The stent, after being expanded from a crimped state by the balloon, provides a crush recovery of about 90% of its expanded diameter after being pinched or crushed by an amount equal to about 50% of the expanded diameter. The stent has a pattern including a W-shaped or W-V shaped closed cell and links connecting the closed cells.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: May 10, 2022
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • BALLOON EXPANDED POLYMER STENT
    Publication number: 20190060097
    Abstract: A medical device includes a polymer stent (or scaffold) crimped to a catheter balloon. The stent, after being expanded from a crimped state by the balloon, provides a crush recovery of about 90% of its expanded diameter after being pinched or crushed by an amount equal to about 50% of the expanded diameter. The stent has a pattern including a W-shaped or W-V shaped closed cell and links connecting the closed cells.
    Type: Application
    Filed: October 26, 2018
    Publication date: February 28, 2019
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • Method of crimping stent on catheter delivery assembly
    Patent number: 10123894
    Abstract: A method of crimping a stent is disclosed. The stent includes a minimum crimped diameter such that in the minimum crimped diameter, a pair of stent rings, between which marker support structures reside, do not make contact with the marker support structures. The crimped profile of the stent of the present invention can be as small as the crimped profile of a same stent but without the maker support structures.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: November 13, 2018
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • Method of making a stent
    Patent number: 9867728
    Abstract: A method of manufacturing a stent is disclosed. The stent includes a minimum crimped diameter such that in the minimum crimped diameter, a pair of stent rings, between which marker support structures reside, do not make contact with the marker support structures. The crimped profile of the stent of the present invention can be as small as the crimped profile of a same stent but without the marker support structures.
    Type: Grant
    Filed: October 12, 2015
    Date of Patent: January 16, 2018
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • METHOD OF CRIMPING STENT ON CATHETER DELIVERY ASSEMBLY
    Publication number: 20170367860
    Abstract: A method of crimping a stent is disclosed. The stent includes a minimum crimped diameter such that in the minimum crimped diameter, a pair of stent rings, between which marker support structures reside, do not make contact with the marker support structures. The crimped profile of the stent of the present invention can be as small as the crimped profile of a same stent but without the maker support structures.
    Type: Application
    Filed: September 8, 2017
    Publication date: December 28, 2017
    Inventors: Mikael TROLLSAS, Michael H. NGO, Boris ANUKHIN, Alexander NIKANOROV, Syed HOSSAINY, John E. PAPP, Dudley JAYASINGHE, Zella SOLTER
  • Crush recoverable polymer scaffolds
    Patent number: 9770351
    Abstract: A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold has a pattern including an asymmetric closed cell connecting links connecting the closed cells.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: September 26, 2017
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • Method of crimping stent on catheter delivery assembly
    Patent number: 9763818
    Abstract: A method of crimping a stent is disclosed. The stent includes a minimum crimped diameter such that in the minimum crimped diameter, a pair of stent rings, between which marker support structures reside, do not make contact with the marker support structures. The crimped profile of the stent of the present invention can be as small as the crimped profile of a same stent but without the maker support structures.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: September 19, 2017
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • Processes for making crush recoverable polymer scaffolds
    Patent number: 9642730
    Abstract: Methods for making scaffolds for delivery via a balloon catheter are described. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold structure has patterns that include an asymmetric or symmetric closed cell, and links connecting such closed cells.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: May 9, 2017
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Michael H. Ngo, Mikael Trollsas, John E. Papp, Hung T. Nguyen, Dudley Jayasinghe, Ron Farnbach, Gregory C. Orr, Joshua Smith, Yongjin Xie, Yu-Chun Ku
  • Crush Recoverable Polymer Scaffolds
    Publication number: 20160374840
    Abstract: A method of manufacturing a stent is disclosed. The stent includes a minimum crimped diameter such that in the minimum crimped diameter, a pair of stent rings, between which marker support structures reside, do not make contact with the marker support structures. The crimped profile of the stent of the present invention can be as small as the crimped profile of a same stent but without the marker support structures.
    Type: Application
    Filed: October 12, 2015
    Publication date: December 29, 2016
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • PROCESSES FOR MAKING CRUSH RECOVERABLE POLYMER SCAFFOLDS
    Publication number: 20160278952
    Abstract: Methods for making scaffolds for delivery via a balloon catheter are described. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold structure has patterns that include an asymmetric or symmetric closed cell, and links connecting such closed cells.
    Type: Application
    Filed: April 1, 2016
    Publication date: September 29, 2016
    Inventors: Michael H. Ngo, Mikael Trollsas, John E. Papp, Hung T. Nguyen, Dudley Jayasinghe, Ron Farnbach, Gregory C. Orr, Joshua Smith, Yongjin Xie, Yu-Chun Ku
  • Processes for making crush recoverable polymer scaffolds
    Patent number: 9345602
    Abstract: Methods for making scaffolds for delivery via a balloon catheter are described. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold structure has patterns that include an asymmetric or symmetric closed cell, and links connecting such closed cells.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: May 24, 2016
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Michael H. Ngo, Mikael Trollsas, John E. Papp, Hung T. Nguyen, Dudley Jayasinghe, Ron Farnbach, Gregory C. Orr, Joshua Takeshi Smith, Yongjin Xie, Yu-Chun Ku
  • Crush Recoverable Polymer Scaffolds
    Publication number: 20160030217
    Abstract: A method of manufacturing a stent is disclosed. The stent includes a minimum crimped diameter such that in the minimum crimped diameter, a pair of stent rings, between which marker support structures reside, do not make contact with the marker support structures. The crimped profile of the stent of the present invention can be as small as the crimped profile of a same stent but without the marker support structures.
    Type: Application
    Filed: October 12, 2015
    Publication date: February 4, 2016
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • Crush recoverable polymer scaffolds
    Patent number: 9198785
    Abstract: A method of manufacturing a stent is disclosed. The stent includes a minimum crimped diameter such that in the minimum crimped diameter, a pair of stent rings, between which marker support structures reside, do not make contact with the marker support structures. The crimped profile of the stent of the present invention can be as small as the crimped profile of a same stent but without the marker support structures.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: December 1, 2015
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • Crush Recoverable Polymer Scaffolds
    Publication number: 20140090231
    Abstract: A method of manufacturing a stent is disclosed. The stent includes a minimum crimped diameter such that in the minimum crimped diameter, a pair of stent rings, between which marker support structures reside, do not make contact with the marker support structures. The crimped profile of the stent of the present invention can be as small as the crimped profile of a same stent but without the marker support structures.
    Type: Application
    Filed: December 4, 2013
    Publication date: April 3, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • Crush Recoverable Polymer Scaffolds
    Publication number: 20140075735
    Abstract: A method of crimping a stent is disclosed. The stent includes a minimum crimped diameter such that in the minimum crimped diameter, a pair of stent rings, between which marker support structures reside, do not make contact with the marker support structures. The crimped profile of the stent of the present invention can be as small as the crimped profile of a same stent but without the maker support structures.
    Type: Application
    Filed: November 20, 2013
    Publication date: March 20, 2014
    Applicant: Abbott Cardiovascular Systems Inc,
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zelia Salter
  • Crush Recoverable Polymer Scaffolds
    Publication number: 20140058499
    Abstract: A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold has a pattern including an asymmetric closed cell connecting links connecting the closed cells.
    Type: Application
    Filed: September 30, 2013
    Publication date: February 27, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • Crush recoverable polymer scaffolds
    Patent number: 8568471
    Abstract: A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold has a pattern including an asymmetric closed cell connecting links connecting the closed cells.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: October 29, 2013
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasinghe, Zella Solter
  • PROCESSES FOR MAKING CRUSH RECOVERABLE POLYMER SCAFFOLDS
    Publication number: 20120073733
    Abstract: Methods for making scaffolds for delivery via a balloon catheter are described. The scaffold, after being deployed by the balloon, provides a crush recovery of about 90% after the diameter of the scaffold has been pinched or crushed by 50%. The scaffold structure has patterns that include an asymmetric or symmetric closed cell, and links connecting such closed cells.
    Type: Application
    Filed: April 19, 2011
    Publication date: March 29, 2012
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Michael H. Ngo, Mikael Trollsas, John E. Papp, Hung T. Nguyen, Dudley Jayasinghe, Ron Farnbach, Gregory C. Orr, Joshua Smith, Yongjin Xie, Yu-Chun Ku
  • NANOBEAD RELEASING MEDICAL DEVICES
    Publication number: 20120003291
    Abstract: Medical devices comprising nanobeads encapsulating one or more bioactive agents and methods of use thereof are provided.
    Type: Application
    Filed: September 13, 2011
    Publication date: January 5, 2012
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Charles H. Craig, John E. Papp, Dudley Jayasinghe, Lionel G. Hines, Dennis Orosa