Patents by Inventor Yunbing Wang

Yunbing Wang 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).

  • Drug delivery device for peripheral artery disease
    Patent number: 9277983
    Abstract: A medical device implantable within a peripheral vessel of the body composed of a bioresorbable polymer is disclosed. The device has a high resistance to fracture, is very flexible, and has a high crush recovery when subjected to crushing, axial, or torsional forces.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 8, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, James Oberhauser, Manish Gada
  • Composite polymeric and metallic stent with radiopacity
    Patent number: 9265866
    Abstract: Various embodiments of stents with a polymeric body with radiopaque metallic particles incorporated in the stent body.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: February 23, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Pamela A. Kramer-Brown, David C. Gale, Vincent J. Gueriguian, Yunbing Wang
  • Implantable medical devices fabricated from polyurethanes with grafted radiopaque groups
    Patent number: 9259515
    Abstract: Medical devices, such as stents, fabricated from a polymer including degradable polymer segments joined by di-urethane linkages with radiopaque functional groups chemically bonded to the polymer are disclosed.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: February 16, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventor: Yunbing Wang
  • UNIFORM CRIMPING AND DEPLOYMENT METHODS FOR POLYMER SCAFFOLD
    Publication number: 20160038320
    Abstract: A medical device-includes a scaffold crimped to a catheter having an expansion balloon. The scaffold is crimped to the balloon by a process that includes one or more balloon pressurization steps. The balloon pressurization steps are selected to enhance scaffold retention to the balloon and maintain a relatively uniform arrangement of balloon folds about the inner surface of the crimped scaffold so that the scaffold expands in a uniform manner when the balloon is inflated.
    Type: Application
    Filed: October 20, 2015
    Publication date: February 11, 2016
    Inventors: Yunbing Wang, Rommel Lumauig, James Oberhauser
  • 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
  • METHODS FOR CRIMPING A POLYMERIC SCAFFOLD TO A DELIVERY BALLOON AND ACHIEVING STABLE MECHANICAL PROPERTIES IN THE SCAFFOLD AFTER CRIMPING
    Publication number: 20160030216
    Abstract: A medical device-includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold is crimped to the balloon by a process that includes inflating the delivery balloon during a diameter reduction to improve scaffold retention. A crimping temperature is maintained at about the onset of glass transition of the polymer material to facilitate more rapid stabilization of mechanical properties in the scaffold following crimping.
    Type: Application
    Filed: September 28, 2015
    Publication date: February 4, 2016
    Inventor: Yunbing Wang
  • Poly(L-lactide) stent with tunable degradation rate
    Patent number: 9248218
    Abstract: Methods of making a biodegradable polymeric stent made from poly(L-lactide) and a low concentration of L-lactide monomer is disclosed. The concentration of L-lactide is adjusted to provide a degradation behavior that is suitable for different treatment applications including coronary, peripheral, and nasal. Methods include making a poly(L-lactide) material for a stent with uniformly distributed L-lactide monomer through control of polymerization conditions during PLLA synthesis, control of post-processing conditions, or both.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: February 2, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, Xiao Ma
  • Analyte sensors and methods for making and using them
    Patent number: 9237865
    Abstract: Embodiments of the invention provide analyte sensors having elements designed to modulate their chemical reactions as well as methods for making and using such sensors. In certain embodiments of the invention, the sensor includes a hydrophilic comb-copolymer having a central chain and a plurality of side chains coupled to the central chain, wherein at least one side chain comprises a silicone moiety.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: January 19, 2016
    Assignee: Medtronic MiniMed, Inc.
    Inventors: Yunbing Wang, Rajiv Shah, Jenn-Hann Larry Wang, William P. Van Antwerp, Brooks B. Cochran
  • CONTROLLING MOISTURE IN AND PLASTICIZATION OF BIORESORBABLE POLYMER FOR MELT PROCESSING
    Publication number: 20150375437
    Abstract: Methods and systems for controlling the moisture content of biodegradable and bioresorbable polymer resin during extrusion above a lower limit that allows for plasticization of the polymer resin melt and below an upper limit to reduce or prevent molecular weight loss are disclosed. Methods are further disclosed involving plasticization of a polymer resin for feeding into an extruder with carbon dioxide and freon.
    Type: Application
    Filed: September 11, 2015
    Publication date: December 31, 2015
    Inventors: Bethany Steichen, Stephen Pacetti, Manish Gada, Thierry Glauser, Lothar Kleiner, Yunbing Wang, James Oberhauser, Ni Ding
  • Uniform crimping and deployment methods for polymer scaffold
    Patent number: 9199408
    Abstract: A medical device-includes a scaffold crimped to a catheter having an expansion balloon. The scaffold is crimped to the balloon by a process that includes one or more balloon pressurization steps. The balloon pressurization steps are selected to enhance scaffold retention to the balloon and maintain a relatively uniform arrangement of balloon folds about the inner surface of the crimped scaffold so that the scaffold expands in a uniform manner when the balloon is inflated.
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: December 1, 2015
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Yunbing Wang, Rommel Lumauig, James Oberhauser
  • Polymer-bioceramic composite implantable medical device with different types of bioceramic particles
    Patent number: 9199004
    Abstract: Implantable medical devices fabricated from polymer/bioceramic composites with different types of bioceramic particles are disclosed.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: December 1, 2015
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, David C. Gale, Syed F. A. Hossainy
  • SHEATHS REDUCING RECOIL AND LOSS OF RETENTION FOR POLYMER SCAFFOLDS CRIMPED TO BALLOONS
    Publication number: 20150328028
    Abstract: A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. A single piece sheath is placed over the scaffold immediately following crimping of the scaffold to the balloon. The single piece sheath is replaced by a two-piece sheath, which is removed prior to performing a medical procedure using the medical device.
    Type: Application
    Filed: May 19, 2015
    Publication date: November 19, 2015
    Inventors: Yunbing Wang, Jhoan Bayogo
  • Polyester implantable medical device with controlled in vivo biodegradability
    Patent number: 9186440
    Abstract: This invention relates to blends of high, optionally medium, and low molecular weight polyesters where at least the low molecular weight polyester is substituted with an acidic moiety, the biodegradation of the blends being controllable by selection of the mean molecular weigh of each fraction, the quantity of each fraction in the blend and the amount and pKa of the acidic moiety(ies).
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: November 17, 2015
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventor: Yunbing Wang
  • 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
  • Bioabsorbable Stent and Treatment That Elicits Time-Varying Host-Material Response
    Publication number: 20150313735
    Abstract: Methods of treating a diseased blood vessel exhibiting stenosis with a bioabsorbable stent are disclosed. The implanted stent supports the section of the vessel at an increased diameter for a period of time to allow the vessel to heal. The stent loses radial strength sufficient to support the section of the vessel in less than 6 months after implantation, loses mechanical integrity, and then erodes away from the section. The biodegradable stent results in changes in properties of plaque with time as the stent degrades. The time-dependent properties include the luminal area of the plaque and plaque geometric morphology parameters.
    Type: Application
    Filed: December 23, 2014
    Publication date: November 5, 2015
    Inventors: Richard Rapoza, Yunbing Wang, James P. Oberhauser, Syed Hossainy
  • BIOABSORBABLE STENT WITH RADIOPAQUE LAYER AND METHOD OF FABRICATION
    Publication number: 20150305827
    Abstract: Embodiments of a stent and methods of fabricating the same with a bioabsorbable radiopaque layer are disclosed.
    Type: Application
    Filed: July 2, 2015
    Publication date: October 29, 2015
    Inventors: Yunbing Wang, David C. Gale
  • Controlling moisture in and plasticization of bioresorbable polymer for melt processing
    Patent number: 9168677
    Abstract: Methods and systems for controlling the moisture content of biodegradable and bioresorbable polymer resin during extrusion above a lower limit that allows for plasticization of the polymer resin melt and below an upper limit to reduce or prevent molecular weight loss are disclosed. Methods are further disclosed involving plasticization of a polymer resin for feeding into an extruder with carbon dioxide and freon.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: October 27, 2015
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Bethany Steichen, Stephen Pacetti, Manish Gada, Thierry Glauser, Lothar Kleiner, Yunbing Wang, James Oberhauser, Ni Ding
  • Methods for crimping a polymeric scaffold to a delivery balloon and achieving stable mechanical properties in the scaffold after crimping
    Patent number: 9155870
    Abstract: A medical device-includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold is crimped to the balloon by a process that includes inflating the delivery balloon during a diameter reduction to improve scaffold retention. A crimping temperature is maintained at about the onset of glass transition of the polymer material to facilitate more rapid stabilization of mechanical properties in the scaffold following crimping.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: October 13, 2015
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventor: Yunbing Wang
  • Polymer-bioceramic composite medical devices with bioceramic particles having grafted polymers
    Patent number: 9144487
    Abstract: Methods and devices relating to polymer-bioceramic composite implantable medical devices are disclosed.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: September 29, 2015
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, David C. Gale
  • STENTS WITH ADHESION PROMOTING LAYER
    Publication number: 20150250625
    Abstract: Stents are disclosed with an adhesion promoting layer that improves adhesion of polymer coatings over polymer surfaces of a stent substrate.
    Type: Application
    Filed: May 19, 2015
    Publication date: September 10, 2015
    Inventors: Yunbing Wang, Daniel Castro, Stephen D. Pacetti