Patents by Inventor Tuyethoa Thi Trinh

Tuyethoa Thi Trinh 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-releasing coatings for medical devices
    Patent number: 6316018
    Abstract: The invention is directed to medical devices having a drug-releasing coating and methods for making such coated devices. The coating permits timed or prolonged pharmacological activity on the surface of medical devices through a reservoir concept. Specifically, the coating comprises at least two layers: an outer layer containing at least one drug-ionic surfactant complex overlying a reservoir layer containing a polymer and the drug which is substantially free of an ionic surfactant. Upon exposure to body tissue of a medical device covered with such coating, the ionically bound drug in the outer layer is released into body fluid or tissue. Following release of such bound drug, the ionic surfactant binding sites in the outer layer are left vacant.
    Type: Grant
    Filed: January 26, 2000
    Date of Patent: November 13, 2001
    Inventors: Ni Ding, Jennifer E. Raeder-Devens, Tuyethoa Thi Trinh
  • Drug-releasing coatings for medical devices
    Patent number: 6042875
    Abstract: The invention is directed to medical devices having a drug-releasing coating and methods for making such coated devices. The coating permits timed or prolonged pharmacological activity on the surface of medical devices through a reservoir concept. Specifically, the coating comprises at least two layers: an outer layer containing at least one drug-ionic surfactant complex overlying a reservoir layer containing a polymer and the drug which is substantially free of an ionic surfactant. Upon exposure to body tissue of a medical device covered with such coating, the ionically bound drug in the outer layer is released into body fluid or tissue. Following release of such bound drug, the ionic surfactant binding sites in the outer layer are left vacant.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: March 28, 2000
    Assignee: Schneider (USA) Inc.
    Inventors: Ni Ding, Jennifer E. Raeder-Devens, Tuyethoa Thi Trinh
  • Drug-releasing coatings for medical devices
    Patent number: 5879697
    Abstract: The invention is directed to medical devices having a drug-releasing coating and methods for making such coated devices. The coating permits timed or prolonged pharmacological activity on the surface of medical devices through a reservoir concept. Specifically, the coating comprises at least two layers: an outer layer containing at least one drug-ionic surfactant complex overlying a reservoir layer containing a polymer and the drug which is substantially free of an ionic surfactant. Upon exposure to body tissue of a medical device covered with such coating, the ionically bound drug in the outer layer is released into body fluid or tissue. Following release of such bound drug, the ionic surfactant binding sites in the outer layer are left vacant.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: March 9, 1999
    Inventors: Ni Ding, Jennifer E. Raeder-Devens, Tuyethoa Thi Trinh