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).

  • Reducing Crimping Damage to Polymer Scaffold
    Publication number: 20120042501
    Abstract: A medical device includes a polymer scaffold crimped to a catheter having an expansion balloon. The scaffold is crimped to the catheter by a multi-step process for increasing scaffold-catheter yield following a crimping sequence. Damage reduction during a crimping sequence includes modifying blades of a crimper, adopting a multi-step crimping sequence, and inflating a supporting balloon to support the scaffold during crimping.
    Type: Application
    Filed: August 23, 2010
    Publication date: February 23, 2012
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, Luis Vazquez, Hung T. Nguyen, Scott H. Mueller, Kathleen Yan
  • TREATMENT OF NASAL CAVITIES WITH STENT HAVING A SOFT OUTER LAYER
    Publication number: 20120046756
    Abstract: A method of treatment of sinusitis and other related diseases including disposing a radially expandable stent into a nasal passageway and radially expanding the stent in a blocked region of the nasal passageway to expand the blocked region is disclosed. The stent includes a tissue-cushioning portion composed of a hydrogel-forming or elastomeric polymer material to provide cushioning between the stent and nasal tissue and reduce irritation of the nasal tissue.
    Type: Application
    Filed: October 26, 2011
    Publication date: February 23, 2012
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, Syed F.A. Hossainy
  • Method of Fabricating Polymer blend-bioceramic composite implantable medical devices
    Patent number: 8119705
    Abstract: Methods and devices relating to polymer blend/bioceramic composite implantable medical devices are disclosed.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: February 21, 2012
    Assignee: Advanced Cardiovascular Systems, Inc.
    Inventors: Yunbing Wang, David C. Gale
  • Implantable medical device comprising copolymer of L-lactide with improved fracture toughness
    Patent number: 8119704
    Abstract: The present invention relates to implantable medical devices comprising a L-lactide-constitutional unit-containing copolymer having a wt % percent crystallinity of 40% or less.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: February 21, 2012
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, James Oberhauser, Manish Gada, Thierry Glauser, Vincent Gueriguian, Bethany Steichen, Lothar Kleiner, Xiao Ma
  • FABRICATING A STENT FORMED FROM POLYMER-BIOCERAMIC COMPOSITE WITH RADIOPAQUE BIOCERAMIC PARTICLES
    Publication number: 20120038087
    Abstract: Fabricating a stent with a radiopaque layer including radiopaque bioceramic particles using coextrusion is disclosed.
    Type: Application
    Filed: October 24, 2011
    Publication date: February 16, 2012
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventor: Yunbing Wang
  • METHODS FOR IMPROVED STENT RETENTION
    Publication number: 20120024474
    Abstract: Methods for improved stent retention on an expandable member during delivery are disclosed. Methods include fabricating delivery systems including a retention layer over the stent, the expandable member, or both for improving retention of the stent on the expandable member during delivery.
    Type: Application
    Filed: October 6, 2011
    Publication date: February 2, 2012
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Bin Huang, Daniel Castro, David C. Gale, Yunbing Wang
  • METHODS FOR IMPROVED STENT RETENTION
    Publication number: 20120024460
    Abstract: Methods for improved stent retention on an expandable member during delivery are disclosed. Methods include fabricating delivery systems including a degradable or water soluble sheath over the stent, the expandable member, or both for improving retention of the stent on the expandable member during delivery.
    Type: Application
    Filed: October 6, 2011
    Publication date: February 2, 2012
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Bin Huang, Daniel Castro, David C. Gale, Yunbing Wang
  • BIOABSORBABLE STENT WTIH LAYERS HAVING DIFFERENT DEGRADATION RATES
    Publication number: 20120029615
    Abstract: A bioabsorbable stent and method of forming the same including a stent scaffolding formed from polymer layers with different degradation rates is disclosed. The polymer layers include an abluminal layer, a luminal layer, and optionally one or more middle layers. A degradation rate of the layers increases from the luminal layer to the abluminal layer.
    Type: Application
    Filed: October 7, 2011
    Publication date: February 2, 2012
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventor: Yunbing Wang
  • Method For Stent Retention On A Balloon Catheter
    Publication number: 20120017416
    Abstract: A balloon is inflated from a collapsed configuration, then deflated. A polymeric stem is then disposed over the deflated balloon and the stent crimped to the balloon.
    Type: Application
    Filed: October 4, 2011
    Publication date: January 26, 2012
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, Gregory Kilinski, Luis Vazquez
  • METHODS TO IMPROVE ADHESION OF POLYMER COATINGS OVER STENTS
    Publication number: 20120004721
    Abstract: Methods are disclosed to improved adhesion of polymer coatings over polymer surfaces of stents which include plasma treatment, applying an adhesion promoting layer, surface treatments with solvents, and mechanical roughening techniques.
    Type: Application
    Filed: July 1, 2011
    Publication date: January 5, 2012
    Inventors: Yunbing WANG, Daniel A. CASTRO, Stephen D. PACETTI
  • METHODS TO IMPROVE ADHESION OF POLYMER COATINGS OVER STENTS
    Publication number: 20120003379
    Abstract: Methods are disclosed to improved adhesion of polymer coatings over polymer surfaces of stents which include plasma treatment, applying an adhesion promoting layer, surface treatments with solvents, and mechanical roughening techniques.
    Type: Application
    Filed: July 1, 2011
    Publication date: January 5, 2012
    Inventors: YUNBING WANG, DANIEL A. CASTRO, STEPHEN D. PACETTI
  • Methods for improved stent retention
    Patent number: 8062465
    Abstract: Methods for improved stent retention on an expandable member during delivery are disclosed. Methods include fabricating delivery systems including a retention layer over the stent, the expandable member, or both for improving retention of the stent on the expandable member during delivery.
    Type: Grant
    Filed: August 2, 2007
    Date of Patent: November 22, 2011
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Bin Huang, Daniel Castro, David C. Gale, Yunbing Wang
  • TUBE EXPANSION PROCESSES AND SYSTEMS FOR SEMICRYSTALLINE POLYMERS TO MAXIMIZE FRACTURE TOUGHNESS
    Publication number: 20110278771
    Abstract: Methods of and systems for fabricating a polymeric stent with improved fracture toughness including radial expansion of a polymer tube along its entire length at the same time and fabricating a stent from the expanded tube are disclosed herein.
    Type: Application
    Filed: July 27, 2011
    Publication date: November 17, 2011
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Lothar W. Kleiner, James P. Oberhauser, Thierry Glauser, David K. Wrolstad, Yunbing Wang
  • Bioabsorbable stent with layers having different degradation rates
    Patent number: 8057876
    Abstract: A bioabsorbable stent including a stent scaffolding formed from polymer layers with different degradation rates is disclosed. The polymer layers include an abluminal layer, a luminal layer, and optionally one or more middle layers. A degradation rate of the layers increases from the luminal layer to the abluminal layer.
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: November 15, 2011
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventor: Yunbing Wang
  • Methods for Crimping a Polymeric Stent Scaffold Onto a Delivery Balloon
    Publication number: 20110271513
    Abstract: A medical device includes a polymer stent scaffold crimped to a catheter having an expansion balloon. A process for forming the medical device includes placing the scaffold on a support supported by an alignment carriage, and deionizing the scaffold to remove any static charge buildup on the scaffold before placing the scaffold within a crimper to reduce the scaffold's diameter. The polymer scaffold is heated to a temperature below the polymer's glass transition temperature to improve scaffold retention without adversely affecting the mechanical characteristics of the scaffold when deployed to support a body lumen.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 10, 2011
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventor: Yunbing Wang
  • Methods for Crimping a Polymeric Stent Onto a Delivery Balloon
    Publication number: 20110270383
    Abstract: A medical device-includes a polymer stent crimped to a catheter having an expansion balloon. The stent is crimped to the balloon by a process that includes heating the stent to a temperature below the polymer's glass transition temperature to improve stent retention without adversely affecting the mechanical characteristics of the stent when later deployed to support a body lumen.
    Type: Application
    Filed: April 30, 2010
    Publication date: November 3, 2011
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Kevin F. Jow, Arlene Sucy Yang, Yunbing Wang, Kathleen W. Yan
  • Implantable Medical Devices Comprising Poly[L-Lactide-Co-(3,6-Dialkyl-1,4-Dioxane-2,5-Dione)]
    Publication number: 20110270387
    Abstract: This invention is directed to implantable medical device comprising a polymeric composition comprising poly[L-lactide-co-(3,6-dialkyl-1,4-dioxane-2,5-dione)], alone or as a blend with one or more polymers selected from the group consisting of poly(L-lactide) and poly(3,6-dialkyl-1,4-dioxane-2,5-dione).
    Type: Application
    Filed: April 29, 2010
    Publication date: November 3, 2011
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, Xiao Ma, Lothar Kleiner, Thierry Glauser
  • Method and apparatus for stent retention on a balloon catheter
    Patent number: 8046897
    Abstract: A balloon is inflated from a collapsed configuration, then deflated. A polymeric stent is then disposed over the deflated balloon and the stent crimped to the balloon.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: November 1, 2011
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Yunbing Wang, Gregory Kilinski, Luis Vazquez
  • Stents formed from polymer-bioceramic composite with radiopaque bioceramic particles
    Patent number: 8043367
    Abstract: Implantable medical devices fabricated at least in part of a polymer-bioceramic composite having bioceramic particles with radiopaque functional groups grafted to a surface of the bioceramic particles are disclosed. Implantable medical devices fabricated at least in part of a radiopaque material having bioceramic particles with polymer chains grafted onto a surface of the bioceramic particles, the radiopaque functional groups being chemically bonded to the grafted polymer chains, are disclosed.
    Type: Grant
    Filed: March 24, 2011
    Date of Patent: October 25, 2011
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventor: Yunbing Wang
  • STENT FORMED FROM BIOERODIBLE METAL-BIOCERAMIC COMPOSITE
    Publication number: 20110238155
    Abstract: Medical devices and methods of fabricating such medical devices, such as stents, formed at least in part from a metal matrix composite including bioceramic particles dispersed within an erodible metal are disclosed.
    Type: Application
    Filed: June 8, 2011
    Publication date: September 29, 2011
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventor: Yunbing Wang