Patents by Inventor Liangxuan Zhang

Liangxuan Zhang 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).

  • Patent number: 9375442
    Abstract: This invention is directed to methods of treating solid tumor cancers, particularly refractory cancers by administration of two pluralities of microparticles, one comprising drug-carrying microparticles sized to lodge at the tumor preferably in the capillary bed of the tumor and the other comprising non-drug-carrying microparticles sized to lodge in the arterial system servicing the tumor so as to embolize the tumor.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 28, 2016
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Liangxuan Zhang, Florencia Lim
  • Publication number: 20140199377
    Abstract: Disclosed are compositions with sustained-release carriers associated with at least two different types of growth factors and methods of fabrication and treatments thereof. In some embodiments, simultaneous release of the growth factors may be preferred while in other embodiments, sequential release of the growth factors may be preferred. Application of at least two growth factors to an injury site, e.g., compromised cardiac tissue caused by, for example, myocardial infarction or ischemic heart failure, may better mimic and induce the complex growth factor signaling pathways necessary to improve cardiac function. When applied to a patient after a myocardial infarction or ischemic heart failure, multiple growth factors within a sustained-release carrier platform or platforms may cause a synergistic effect on injected cells intending to alleviate left ventricle remodeling. Methods of treatment include percutaneous, sub-xiphoid, and open chest methods using catheters and/or syringes.
    Type: Application
    Filed: March 18, 2014
    Publication date: July 17, 2014
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: John J. Stankus, Florian N. Ludwig, Evgenia Mandrusov, Liangxuan Zhang, Hong Ma, Jinping Wan, Shubhayu Basu
  • Patent number: 8703180
    Abstract: Disclosed are compositions with sustained-release carriers associated with at least two different types of growth factors and methods of fabrication and treatments thereof. In some embodiments, simultaneous release of the growth factors may be preferred while in other embodiments, sequential release of the growth factors may be preferred. Application of at least two growth factors to an injury site, e.g., compromised cardiac tissue caused by, for example, myocardial infarction or ischemic heart failure, may better mimic and induce the complex growth factor signaling pathways necessary to improve cardiac function. When applied to a patient after a myocardial infarction or ischemic heart failure, multiple growth factors within a sustained-release carrier platform or platforms may cause a synergistic effect on injected cells intending to alleviate left ventricle remodeling. Methods of treatment include percutaneous, sub-xiphoid, and open chest methods using catheters and/or syringes.
    Type: Grant
    Filed: October 23, 2007
    Date of Patent: April 22, 2014
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: John J. Stankus, Florian N. Ludwig, Evgenia Mandrusov, Liangxuan Zhang, Hong Ma, Jinping Wan, Shubhayu Basu
  • Publication number: 20130011467
    Abstract: This invention is directed to methods of treating solid tumor cancers, particularly refractory cancers by administration of two pluralities of microparticles, one comprising drug-carrying microparticles sized to lodge at the tumor preferably in the capillary bed of the tumor and the other comprising non-drug-carrying microparticles sized to lodge in the arterial system servicing the tumor so as to embolize the tumor.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Liangxuan Zhang, Florencia Lim
  • Patent number: 8287840
    Abstract: This invention is directed to methods of treating solid tumor cancers, particularly refractory cancers by administration of two pluralities of microparticles, one comprising drug-carrying microparticles sized to lodge at the tumor preferably in the capillary bed of the tumor and the other comprising non-drug-carrying microparticles sized to lodge in the arterial system servicing the tumor so as to embolize the tumor.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: October 16, 2012
    Assignee: Abbott Cardiovascular Systems Inc.
    Inventors: Liangxuan Zhang, Florencia Lim
  • Publication number: 20110020427
    Abstract: This invention is directed to methods of treating solid tumor cancers, particularly refractory cancers by administration of two pluralities of microparticles, one comprising drug-carrying microparticles sized to lodge at the tumor preferably in the capillary bed of the tumor and the other comprising non-drug-carrying microparticles sized to lodge in the arterial system servicing the tumor so as to embolize the tumor.
    Type: Application
    Filed: July 24, 2009
    Publication date: January 27, 2011
    Applicant: Abbott Cardiovascular Systems Inc.
    Inventors: Liangxuan Zhang, Florencia Lim
  • Publication number: 20100324645
    Abstract: A drug delivery balloon is provided comprising a balloon having a surface, and a coating disposed on at least a portion of the balloon surface, the coating including an cytostatic therapeutic agent, an excipient, and a plasticizer. In accordance with the present subject matter, at least 30% of the coating transfers from the balloon surface within two minutes after inflation of the balloon. Alternatively, at least 30% of the coating transfers from the balloon surface within one minute after inflation. The coating results in an effective pharmacokinetic profile of an cytostatic therapeutic agent in a vasculature or target tissue.
    Type: Application
    Filed: June 17, 2009
    Publication date: December 23, 2010
    Inventors: JOHN STANKUS, Mikael Trollsas, Syed Hossainy, Liangxuan Zhang, Ed Berger, Stephen Pacetti, John L. Toner