Patents by Inventor Ananth R. Krishnan

Ananth R. Krishnan 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).

  • Safety catheter with non-removable retractable needle
    Patent number: 6730062
    Abstract: A safety introducer for insertion into a vessel of a patient for infusion of fluids into or withdraw of fluids from the vessel. The introducer includes a catheter assembly having a catheter tube attached to a catheter body. The catheter body has an elongated cavity extending therethrough which is in fluid communication with the catheter tube. The introducer further includes a needle assembly having an elongated needle attached to a flexible tube. The flexible tube is in fluid communication with the elongated cavity. The needle assembly is slidably disposed within the elongated cavity such that a proximally directed force exerted on the flexible tube withdraws the needle assembly substantially completely within the elongated cavity.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: May 4, 2004
    Assignee: Medex, Inc.
    Inventors: Douglas B. Hoffman, Ananth R. Krishnan
  • Safety catheter with non-removable retractable needle
    Publication number: 20030073956
    Abstract: A safety introducer for insertion into a vessel of a patient for infusion of fluids into or withdraw of fluids from the vessel. The introducer includes a catheter assembly having a catheter tube attached to a catheter body. The catheter body has an elongated cavity extending therethrough which is in fluid communication with the catheter tube. The introducer further includes a needle assembly having an elongated needle attached to a flexible tube. The flexible tube is in fluid communication with the elongated cavity. The needle assembly is slidably disposed within the elongated cavity such that a proximally directed force exerted on the flexible tube withdraws the needle assembly substantially completely within the elongated cavity.
    Type: Application
    Filed: October 11, 2001
    Publication date: April 17, 2003
    Inventors: Douglas B. Hoffman, Ananth R. Krishnan