Patents by Inventor Patrick J. Kiefer

Patrick J. Kiefer 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).

  • Method and apparatus for guidewire placement of catheters
    Patent number: 4758218
    Abstract: A percutaneous syringe assembly for use in the introduction of a guidewire into a blood vessel for the purpose of guiding a catheter into place. The syringe has a plunger with a central guide tube for the wire and a needle lumen for introduction of the wire into a blood vessel. A protective flexible container for a guidewire is attachable to the syringe plunger in a closed circuit with selective ends to be aligned with the central guide tube of the plunger to permit a J-end or a straight end of a wire to be introduced into a selected blood vessel.
    Type: Grant
    Filed: November 19, 1986
    Date of Patent: July 19, 1988
    Assignee: DLP Inc.
    Inventors: Patrick J. Kiefer, James H. De Vries, Kenneth R. Jonkman