Patents by Inventor Shanta Modak

Shanta Modak 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: 5487896
    Abstract: The present invention relates to an antimicrobial glove which exhibits rapid release of the antiinfective agent chlorhexidine. It is based, at least in part, on the discovery that when a slurry having a high ratio of chlorhexidine to starch lubricant, where the percentage of starch lubricant is between 7 and 10 percent, is used to coat the inner surface of a latex glove, the resulting antimicrobial activity is available surprisingly quickly, within about 30 seconds to one minute of exposure to liquid. This rapid release of antiinfective agent may be explained by the presence, in gloves according to the invention, of two matrix layers, one comprising the starch lubricant, the other comprising latex in the body of the glove in immediate apposition to the lubricant, both of which are supersaturated with chlorhexidine.
    Type: Grant
    Filed: May 12, 1994
    Date of Patent: January 30, 1996
    Assignee: Trustees of Columbia University In The City of New York
    Inventors: Shanta Modak, Lester Sampath
  • Patent number: 4581028
    Abstract: Infection-resistant materials, and methods of preparing same, suitable for use within the interior of a human or animal body in such forms as vascular grafts prostheses, or other implanted devices. The material is rendered infection-resistant by incorporating therein antimicrobial agents, such as metal salts of sulfonamides and other antimicrobials or antibacterials, such as piperacillin. In particular illustrative embodiments, silver sulfadiazine is complexed by novel techniques with natural or synthetic polymeric materials such as silk, polyester (e.g., Dacron), polyurethane, polytetrafluoroethylene, or silicone-based material, to provide long-term prevention of infections which may otherwise result during, or after, surgery or implantation of a device.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: April 8, 1986
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Charles L. Fox, Jr., Shanta Modak, Keith Reemtsma
  • Patent number: 4563485
    Abstract: Infection-resistant materials, and methods of preparing same, suitable for use within the interior of a human or animal body in such forms as vascular grafts prostheses, or other implanted devices. The material is rendered infection-resistant by incorporating therein antimicrobial agents, such as nalidixic acid derivatives or metal salts of nalidixic acid derivatives. In particular illustrative embodiments, silver norfloxacin and silver pefloxacin, are complexed with natural or synthetic polymeric materials such as silk, polyester (e.g., Dacron), polyurethane, polytetrafluoroethylene, or silicone-based material, to provide long-term prevention of infections which may otherwise result during or after surgery or implantation of a device.
    Type: Grant
    Filed: April 30, 1984
    Date of Patent: January 7, 1986
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Charles L. Fox, Jr., Shanta Modak, Keith Reemtsma