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).

  • Shape memory bioresorbable polymer peripheral scaffolds
    Patent number: 9668894
    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: Grant
    Filed: January 22, 2015
    Date of Patent: June 6, 2017
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: John S. Stankus, Hugh Zhao, Mikael Trollsas, Syed Faiyaz Ahmed Hossainy, Michael H. Ngo, Yunbing Wang, Benny Serna
  • 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
  • Implantable device with a triblock polymer coating
    Patent number: 9629944
    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: May 20, 2016
    Date of Patent: April 25, 2017
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: O. Mikael Trollsas, Michael H. Ngo, David J. Sherman, Syed F. A. Hossainy
  • 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
  • IMPLANTABLE DEVICE WITH A TRIBLOCK POLYMER COATING
    Publication number: 20160263291
    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: Application
    Filed: May 20, 2016
    Publication date: September 15, 2016
    Inventors: O. Mikael TROLLSAS, Michael H. NGO, David J. SHERMAN, Syed F.A, HOSSAINY
  • 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
  • Implantable device having a slow dissolving polymer
    Patent number: 9345668
    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: November 17, 2014
    Date of Patent: May 24, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: O. Mikael Trollsas, Michael H. Ngo, David J. Sherman, Syed F. A. Hossainy
  • 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
  • RUBBER TOUGHENED BIORESORBABLE POLYMER PERIPHERAL SCAFFOLDS
    Publication number: 20160030212
    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 12, 2015
    Publication date: February 4, 2016
    Inventors: John Stankus, Yunbing Wang, Mikael Trollsas, Syed Faiyaz Ahmed Hossainy, Michael H. Ngo, Dariush Davalian
  • Modifying polymer properties with penetrants in the fabrication of bioresorbable scaffolds
    Patent number: 9205456
    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: Grant
    Filed: July 24, 2012
    Date of Patent: December 8, 2015
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Mikael Trollsas, John Stankus, Michael H. Ngo, Wen Chung Tsai, Thierry Glauser
  • 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
  • Rubber toughened bioresorbable polymer peripheral scaffolds
    Patent number: 9180228
    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: Grant
    Filed: October 3, 2011
    Date of Patent: November 10, 2015
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: John Stankus, Yunbing Wang, Mikael Trollsas, Syed Faiyaz Ahmed Hossainy, Michael H. Ngo, Dariush Davalian
  • Polymers for implantable devices exhibiting shape-memory effects
    Patent number: 9066992
    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: Grant
    Filed: May 28, 2013
    Date of Patent: June 30, 2015
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: John J. Stankus, O. Mikael Trollsas, Michael H. Ngo
  • Block Copolymer Comprising at least one Polyester Block and at least one Poly(ethylene glycol) Block
    Publication number: 20150174300
    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: Application
    Filed: December 22, 2014
    Publication date: June 25, 2015
    Inventors: O. Mikael Trollsas, Michael H. Ngo, Syed F. A. Hossainy, David J. Sherman
  • BIOABSORBABLE COATING WITH TUNABLE HYDROPHOBICITY
    Publication number: 20150151030
    Abstract: The present invention relates to implantable medical devices coated with polymer having tunable hydrophobicity and their use in the treatment of vascular diseases.
    Type: Application
    Filed: January 26, 2015
    Publication date: June 4, 2015
    Inventors: Lothar W. Kleiner, John Stankus, Nam D. Pham, Michael H. Ngo, Bozena Zofia Maslanka, Syed Faiyaz Ahmed Hossainy, Mikael Trollsas, Yiwen Tang
  • IMPLANTABLE DEVICE HAVING A SLOW DISSOLVING POLYMER
    Publication number: 20150147402
    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: Application
    Filed: November 17, 2014
    Publication date: May 28, 2015
    Inventors: O. Mikael Trollsas, Michael H. Ngo, David J. Sherman, Syed F.A. Hossainy
  • SHAPE MEMORY BIORESORBABLE POLYMER PERIPHERAL SCAFFOLDS
    Publication number: 20150142099
    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: January 22, 2015
    Publication date: May 21, 2015
    Inventors: John S. Stankus, Hugh Zhao, Mikael Trollsas, Syed Faiyaz Ahmed Hossainy, Michael H. Ngo, Yunbing Wang, Benny Serna
  • Shape memory bioresorbable polymer peripheral scaffolds
    Patent number: 8968387
    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: Grant
    Filed: July 23, 2012
    Date of Patent: March 3, 2015
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: John S. Stankus, Hugh Zhao, Mikael Trollsas, Syed Faiyaz Ahmed Hossainy, Michael H. Ngo, Yunbing Wang, Benny Serna
  • Bioabsorbable coating with tunable hydrophobicity
    Patent number: 8961589
    Abstract: The present invention relates to implantable medical devices coated with polymer having tunable hydrophobicity and their use in the treatment of vascular diseases.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: February 24, 2015
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Lothar W. Kleiner, John Stankus, Nam D. Pham, Michael H. Ngo, Bozena Zofia Maslanka, Syed Faiyaz Ahmed Hossainy, Mikael Trollsas, Yiwen Tang