Patents by Inventor Yongmu ZHANG

Yongmu 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: 10058636
    Abstract: A drug coated balloon catheter has a balloon and a drug coating covering the surface of the balloon; the drug coating comprises an active drug and a carrier; the active drug is paclitaxel, rapamycin, a paclitaxel derivative or rapamycin derivative; the carrier comprises an organic acid salt and polyalcohol; a mass ratio of the active drug to the carrier in the drug coating is 0.2 to 100, and a mass ratio of the organic acid salt to the polyalcohol is (0.2 to 5):1. The organic acid salt and the polyalcohol in the drug coating jointly take effect to prevent the premature release of drugs before the balloon catheter is positioned at a target site, and to promote the drugs being quickly released from the surface of the balloon and absorbed by the target tissue, thus reducing drug loss during transmission, and also having a better drug transfer effect.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: August 28, 2018
    Assignee: Lifetech Scientific (Shenzhen) Co. Ltd.
    Inventors: Qizong Xie, Yongmu Zhang, Jinhua Lu, Jingzhong Song
  • Publication number: 20160331870
    Abstract: The present invention relates to a drug coated balloon catheter, comprising a balloon and a drug coating covering the surface of the balloon; the drug coating comprises an active drug and a carrier; the active drug is paclitaxel, rapamycin, a paclitaxel derivative or rapamycin derivative; the carrier comprises an organic acid salt and polyalcohol; a mass ratio of the active drug to the carrier in the drug coating is 0.2 to 100, and a mass ratio of the organic acid salt to the polyalcohol is (0.2 to 5):1, The organic acid salt and the polyalcohol in the drug coating jointly take effect to prevent the premature release of drugs before the balloon catheter is positioned at a target site, and to promote the drugs being quickly released from the surface of the balloon and absorbed by the target tissue, thus reducing drug loss during transmission, and also having a better drug transfer effect.
    Type: Application
    Filed: December 8, 2014
    Publication date: November 17, 2016
    Applicant: Lifetech Scientific (Shenzhen) Co., Ltd.
    Inventors: Qizong XIE, Yongmu ZHANG, Jinhua LU, Jingzhong SONG