Patents by Inventor Carl Barwick

Carl Barwick 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).

  • Urethral indwelling catheter with magnetically controlled drainage valve and method
    Patent number: 5041092
    Abstract: The catheter includes a user controlled incontinence portion that is combinable with a combination inflation/drainage member. The inflation/drainage member can be detached from the incontinence portion to provide a user controlled device. A magnetic valve is incorporated in the user controlled incontinence portion for magnetic actuation with an external magnet. The valve is normally closed and magnetically actuatable to an open condition. Removal of the external magnet from proximity to the penis enables the valve to assume its normally closed position. In one embodiment of the invention the valve includes a pressure relief feature. In another embodiment of the invention there is no pressure relief feature.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: August 20, 1991
    Assignee: Medical Engineering Corporation
    Inventor: Carl Barwick