Patents by Inventor Walter Smithwick

Walter Smithwick 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).

  • Vascular shunt with audio flow indication
    Patent number: 7087034
    Abstract: A vascular shunt apparatus (10) includes a tubular member having first and second end portions (16, 20) and an aperture extending through the first and second end portions (16, 20). A transducer (64) can be associated with the tubular member to provide a signal in response to the flow of fluid through the tubular member. One or both of the end portions (16, 20) also can be adapted to form respective sealing connections with different parts of a patient's vascular system.
    Type: Grant
    Filed: September 19, 2002
    Date of Patent: August 8, 2006
    Inventors: William E. McPherson, Walter Smithwick
  • Vascular shunt with audio flow indication
    Publication number: 20040059278
    Abstract: A vascular shunt apparatus (10) includes a tubular member having first and second end portions (16, 20) and an aperture extending through the first and second end portions (16, 20). A transducer (64) can be associated with the tubular member to provide a signal in response to the flow of fluid through the tubular member. One or both of the end portions (16, 20) also can be adapted to form respective sealing connections with different parts of a patient's vascular system.
    Type: Application
    Filed: September 19, 2002
    Publication date: March 25, 2004
    Inventors: William E. McPherson, Walter Smithwick