Patents by Inventor John Woltjen

John Woltjen 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).

  • Endoscope tip pressure feedback control system for insufflated fluids and gases
    Publication number: 20050171401
    Abstract: Endoscopes are designed to deliver gas and fluid to body cavities or hollow organs during examinations and surgery to accomplish desired tasks. The delivery of gas and fluid potentially increases the body cavity or hollow organ ambient pressure to an injurious level. This invention senses the body cavity or intra luminal organ pressure and stops the flow of gas and/or fluid before injury can occur. Gas and fluid flow is re-established when the ambient pressure falls to a safe level.
    Type: Application
    Filed: February 3, 2004
    Publication date: August 4, 2005
    Inventor: John Woltjen