Patents by Inventor Michael H. Ngo

Michael H. Ngo 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).

  • Block copolymer comprising at least one polyester block and a poly (ethylene glycol) block
    Patent number: 8916188
    Abstract: The present invention provides a block copolymer for a coating on an implantable device for controlling release of drug and methods of making and using the same.
    Type: Grant
    Filed: April 18, 2008
    Date of Patent: December 23, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael O. Trollsas, Michael H. Ngo, Syed Hossainy, David J. Sherman
  • COUPLED SCAFFOLD SEGMENTS
    Publication number: 20140364935
    Abstract: A scaffold is formed by several segments joined or connected to each other by only at least one coupling. The coupling decouples the segments in the axial direction over a finite distance of axial displacement. The scaffold when implanted in a peripheral vessel reduces loading on rings of a segment due to the decoupling of the segments in the axial direction over the finite distance.
    Type: Application
    Filed: June 5, 2013
    Publication date: December 11, 2014
    Inventors: Erik David Eli, Syed Hossainy, Mikael Trollsas, Michael H. Ngo, Stephen Pacetti, Michael Green, John Papp
  • POLYMER SCAFFOLDS HAVING A LOW CROSSING PROFILE
    Publication number: 20140330363
    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 also has a reduced crimped profile and a modification of the scaffold's ring structure at the crowns that contributes to the reduced crimped profile.
    Type: Application
    Filed: July 3, 2014
    Publication date: November 6, 2014
    Inventors: Boris Anukhin, Michael H. Ngo, Mikael Trollsas, Syed Hossainy, John Papp
  • Crush recoverable polymer scaffolds having a low crossing profile
    Patent number: 8808353
    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 also has a reduced crimped profile and a modification of the scaffold's ring structure at the crowns that contributes to the reduced crimped profile.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: August 19, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Boris Anukhin, Michael H. Ngo, Mikael Trollsas, Syed Hossainy, John E. Papp
  • 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: 20140067044
    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: March 6, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John E. Papp, Dudley Jayasingle, Zella Solter
  • 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
    Publication number: 20140039604
    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: October 9, 2013
    Publication date: February 6, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Syed Hossainy
  • Implantable device having a slow dissolving polymer
    Patent number: 8642062
    Abstract: The present invention provides an implantable device having a coating including a slow dissolving polymer or material and the methods of making and using the same.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: February 4, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael O. Trollsas, Michael H. Ngo, David J. Sherman, Syed F. A. Hossainy
  • CRUSH RECOVERABLE POLYMER SCAFFOLDS
    Publication number: 20140031921
    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 24, 2013
    Publication date: January 30, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Syed Hossainy, John E. Papp
  • MODIFYING POLYMER PROPERTIES WITH PENETRANTS IN THE FABRICATION OF BIORESORBABLE SCAFFOLDS
    Publication number: 20140030422
    Abstract: Methods of fabricating a bioresorbable polymer scaffold are disclosed including a step of inducing crystallization in a bioresorbable polymer construct through exposure to a liquid penetrant.
    Type: Application
    Filed: July 24, 2012
    Publication date: January 30, 2014
    Inventors: Mikael TROLLSAS, John STANKUS, Michael H. NGO, Wen Chung TSAI, Thierry Glauser
  • SHAPE MEMORY BIORESORBABLE POLYMER PERIPHERAL SCAFFOLDS
    Publication number: 20140025161
    Abstract: Bioabsorbable scaffolds having high crush recoverability, high fracture resistance, and reduced or no recoil due to self expanding properties at physiological conditions are disclosed. The scaffolds are made from a random copolymer of PLLA and a rubbery polymer such as polycaprolactone.
    Type: Application
    Filed: July 23, 2012
    Publication date: January 23, 2014
    Applicant: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: John S. Stankus, Hugh Zhao, Mikael Trollsas, Syed Faiyaz Ahmed Hossainy, Michael H. Ngo, Yunbing Wang, Benny Serna
  • Polymers For Implantable Devices Exhibiting Shape-Memory Effects
    Publication number: 20140010858
    Abstract: The present invention is directed to polymeric compositions comprising a biodegradable copolymer that possesses shape-memory properties and implantable devices (e.g., drug-delivery stents) formed of materials (e.g., a coating) containing such compositions. The polymeric compositions can also contain at least one non-fouling moiety, at least additional biocompatible polymer, at least one biobeneficial material, at least one bioactive agent, or a combination thereof. The polymeric compositions are formulated to possess good mechanical, physical and biological properties. Moreover, implantable devices formed of materials comprising such compositions can be delivered to the treatment site in a conveniently compressed size and then can expand to dimensions appropriate for their medical functions.
    Type: Application
    Filed: May 28, 2013
    Publication date: January 9, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: John J. Stankus, O. Mikael Trollsas, Michael H. Ngo
  • 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
  • RUBBER TOUGHENED BIORESORBABLE POLYMER PERIPHERAL SCAFFOLDS
    Publication number: 20130085563
    Abstract: Bioabsorbable scaffolds are disclosed with a rigid polymer component and a rubbery polymer component. The rubbery polymer component is miscible, partially miscible, or immiscible with the rigid polymer component.
    Type: Application
    Filed: October 3, 2011
    Publication date: April 4, 2013
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: John Stankus, Yunbing Wang, Mikael Trollsas, Syed Faiyaz Ahmed Hossainy, Michael H. Ngo, Dariush Davalian
  • 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
  • Crush Recoverable Polymer Scaffolds
    Publication number: 20110190871
    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: January 27, 2011
    Publication date: August 4, 2011
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, Michael H. Ngo, Boris Anukhin, Alexander Nikanorov, Syed Hossainy, John Papp, Dudley Jayasinghe, Zella Solter
  • Crush Recoverable Polymer Scaffolds Having a Low Crossing Profile
    Publication number: 20110190872
    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 also has a reduced crimped profile and a modification of the scaffold's ring structure at the crowns that contributes to the reduced crimped profile.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 4, 2011
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Boris Anukhin, Michael H. Ngo, Mikael Trollsas, Syed Hossainy, John Papp
  • Thioester-ester-amide copolymers
    Patent number: 7927621
    Abstract: A poly(thioester ester amide) copolymer and method of making and using the same are disclosed.
    Type: Grant
    Filed: June 25, 2007
    Date of Patent: April 19, 2011
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael O. Trollsas, Nam D. Pham, Michael H. Ngo, Bozena Zofia Maslanka