Patents by Inventor John E. Rdzok

John E. Rdzok 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).

  • Inflation cuff with transient-resistant over-pressure preventor
    Patent number: 9162042
    Abstract: A catheter system (10) with a valve assembly (12) that expels excess inflation fluid when a cuff or balloon (16) of the catheter system is overinflated. The valve assembly includes a luer-activated spool (34) biased toward a sealed condition, a precision relief/check valve (56) biased toward a scaled condition, a primary valve body outlet (22), a valve body feedback inlet (24), and a secondary valve body outlet (26). An inflation lumen (48) is in fluid communication with the primary valve body outlet and an interior of the cuff or balloon. A feedback lumen (54) is in fluid communication with the interior of the cuff or balloon and the valve body feedback inlet. When feedback fluid builds up pressure in excess of the restoring force of the relief spring, the relief/check valve opens, unsealing an expulsion pathway and relieving excess fluid from the cuff or balloon.
    Type: Grant
    Filed: February 7, 2011
    Date of Patent: October 20, 2015
    Assignee: Hollister Incorporated
    Inventors: Robin Ray Thompson, John E. Rdzok, Richard J. Hantke
  • INFLATION CUFF WITH TRANSIENT-RESISTANT OVER-PRESSURE PREVENTOR
    Publication number: 20130131626
    Abstract: A catheter system (10) with a valve assembly (12) that expels excess inflation fluid when a cuff or balloon (16) of the catheter system is overinflated. The valve assembly includes a luer-activated spool (34) biased toward a sealed condition, a precision relief/check valve (56) biased toward a scaled condition, a primary valve body outlet (22), a valve body feedback inlet (24), and a secondary valve body outlet (26). An inflation lumen (48) is in fluid communication with the primary valve body outlet and an interior of the cuff or balloon. A feedback lumen (54) is in fluid communication with the interior of the cuff or balloon and the valve body feedback inlet. When feedback fluid builds up pressure in excess of the restoring force of the relief spring, the relief/check valve opens, unsealing an expulsion pathway and relieving excess fluid from the cuff or balloon.
    Type: Application
    Filed: February 7, 2011
    Publication date: May 23, 2013
    Applicant: Holister Incorporated
    Inventors: Robin Ray Thompson, John E. Rdzok, Richard J. Hantke