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).

  • FLOW REGULATION VALVE FOR CONTROLLING INFLATION RATE OF A BALLOON DEPLOYING A SCAFFOLD
    Publication number: 20160158046
    Abstract: An apparatus and method for controlling inflation pressure, pressurization rate, and volumetric flow rate of a balloon during deployment of a stent or scaffold is disclosed.
    Type: Application
    Filed: February 4, 2016
    Publication date: June 9, 2016
    Inventors: Stephen D. Pacetti, Yunbing Wang
  • DRUG DELIVERY DEVICE FOR PERIPHERAL ARTERY DISEASE
    Publication number: 20160157988
    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: Application
    Filed: February 11, 2016
    Publication date: June 9, 2016
    Inventors: Yunbing Wang, James Oberhauser, Manish Gada
  • SYSTEM TO PREVENT STENT DAMAGE CAUSED BY LASER CUTTING
    Publication number: 20160136875
    Abstract: Apparatus, method and system for cutting a polymeric stent including the use of a polymeric mandrel as a laser shielding device. The polymeric mandrel is allowed to roll freely within a polymeric tube that is cut into a polymeric stent.
    Type: Application
    Filed: January 21, 2016
    Publication date: May 19, 2016
    Inventors: David C. Gale, Yunbing Wang, Svava Maria Atladottir, Klaus Kleine
  • Magnesium alloy implants with controlled degradation
    Patent number: 9333099
    Abstract: Stents or scaffolds made from magnesium or magnesium alloys including additives or barrier coatings that modify the corrosion rate of the stent are disclosed. Methods of forming barrier coatings that modify the corrosion rate of the stent are disclosed.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: May 10, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Stephen D. Pacetti, Yunbing Wang, Ni Ding
  • METHOD OF TREATING WITH POLY(L-LACTIDE) STENT WITH TUNABLE DEGRADATION RATE
    Publication number: 20160101222
    Abstract: Methods of treating with 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.
    Type: Application
    Filed: December 16, 2015
    Publication date: April 14, 2016
    Inventors: Yunbing Wang, Xiao Ma
  • Flow regulation valve for controlling inflation rate of a balloon deploying a scaffold
    Patent number: 9289319
    Abstract: An apparatus and method for controlling inflation pressure, pressurization rate, and volumetric flow rate of a balloon during deployment of a stent or scaffold is disclosed.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: March 22, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Stephen D. Pacetti, Yunbing Wang
  • Bioabsorbable scaffold with particles providing delayed acceleration of degradation
    Patent number: 9283097
    Abstract: Methods of controlling the degradation profile of a biodegradable stent scaffolding are disclosed. A bioabsorbable scaffold having a plurality of particles incorporated into the scaffolding that accelerate the absorption of the scaffolding after an induction time during degradation is disclosed.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: March 15, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, James Oberhauser
  • Polymer scaffold with multi-pleated balloon
    Patent number: 9283100
    Abstract: A medical device includes a polymer scaffold crimped to a balloon. The balloon is formed with between 6 and 15 pleats to provide a uniform expansion of the scaffold when the balloon is inflated. Also provided are methods for crimping a scaffold to a multi-pleated balloon and methods for making a multi-pleated balloon.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: March 15, 2016
    Assignee: ABBOTT CARDIOVASCULAR SYSTEMS INC.
    Inventors: Yunbing Wang, Manish Gada
  • 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
  • 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
  • Method to prevent stent damage caused by laser cutting
    Patent number: 9278485
    Abstract: Apparatus, method and system for cutting a polymeric stent including the use of a polymeric mandrel as a laser shielding device. The polymeric mandrel is allowed to roll freely within a polymeric tube that is cut into a polymeric stent.
    Type: Grant
    Filed: January 8, 2013
    Date of Patent: March 8, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: David C. Gale, Yunbing Wang, Svava Maria Atladottir, Klaus Kleine
  • Method to minimize molecular weight drop of poly(L-lactide) stent during processing
    Patent number: 9278470
    Abstract: A method to reduce or minimize the reduction in molecular weight of a stent during processing is disclosed. The stent has a scaffolding including a polymer formulation comprising PLLA and polymandelide. The polymandelide reduces the molecular weight drop during processing, particularly during sterilization. The stent scaffolding can further include one or more additional stabilizing agents that additionally reduce the molecular weight drop during processing.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: March 8, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Byron Lambert, Yunbing Wang, James Oberhauser
  • 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