Patents by Inventor John N. Pittman

John N. Pittman 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).

  • Catheter and method for infusing fluid into a patient
    Patent number: 4701160
    Abstract: A medical catheter and a method for infusing blood into a patient. The medical catheter has first and second inlet openings, an outlet opening, a passageway connecting the openings, and a flexible valve member between the inlet openings. The valve member controls the size of the passageway between the inlet openings. The method includes inserting a conventional occlusion catheter into the medical catheter through the valve member and extending the tip of the occlusion catheter beyond the outlet opening of the medical catheter so that the blood vessel within the patient can be restrained.
    Type: Grant
    Filed: June 11, 1986
    Date of Patent: October 20, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Erin J. Lindsay, John N. Pittman