Patents by Inventor Paul Benjamin Ridout

Paul Benjamin Ridout 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).

  • Patent number: 6796309
    Abstract: A tracheostomy tube has a sealing cuff inflated by an inflation tube extending in a channel along one side of the tracheostomy tube. A suction tube extends in a channel along the opposite side of the tracheostomy tube. The suction tube extends to the upper end of the sealing cuff and opens into a recess on the outside of the tracheostomy tube through a side opening oriented at right angles to the radius of the tracheostomy tube. The recess extends around about 90° of the tube towards its outer curve so that secretions collecting in this region can be removed.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: September 28, 2004
    Assignee: Smith Group PLC
    Inventors: John Edward Nash, Paul Benjamin Ridout
  • Publication number: 20020078962
    Abstract: A tracheostomy tube has a sealing cuff inflated by an inflation tube extending in a channel along one side of the tracheostomy tube. A suction tube extends in a channel along the opposite side of the tracheostomy tube. The suction tube extends to the upper end of the sealing cuff and opens into a recess on the outside of the tracheostomy tube through a side opening oriented at right angles to the radius of the tracheostomy tube. The recess extends around about 90° of the tube towards its outer curve so that secretions collecting in this region can be removed.
    Type: Application
    Filed: December 7, 2001
    Publication date: June 27, 2002
    Inventors: John Edward Nash, Paul Benjamin Ridout
  • Patent number: 6086546
    Abstract: An endometrial sampler has an outer catheter and an inner plunger slidable within the catheter. The catheter has a coaxial opening at its tip and two side openings located diametrically opposite one another close to the tip, the side openings being elongate along the axis of the catheter. The tip of the plunger projects into the tip opening to form a smooth surface to the sampler. An O-ring seal on the plunger is located rearwardly of the side openings so that suction is applied to both the side openings and the tip opening when the plunger is pulled rearwardly.
    Type: Grant
    Filed: March 11, 1999
    Date of Patent: July 11, 2000
    Assignees: Edward Patrick Morris, Smiths Industries Public Limited Company
    Inventors: Edward Patrick Morris, Paul Benjamin Ridout