Patents by Inventor Darren John Hart

Darren John Hart 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).

  • Apparatus for functional electrical stimulation of the body
    Patent number: 9204822
    Abstract: A controller is provided for a functional electrical stimulator for attachment to a leg comprising, a connector for a foot switch for sensing foot rise or foot strike, a circuit for responding to said foot switch for generating stimulation pulses and a connector for first and second electrodes for attachment to the leg for supplying stimulation pulses from said circuit The circuit includes a voltage divider of which the foot switch when connected comprises one element, a second element being provided by a digital potentiometer forming part of the controller. A micro controller is configured to make adaptive adjustment of the resistance of said digital potentiometer to take account of the resistance characteristics of the foot switch to provide an output or reference voltage permitting an open/closed state of the switch to be monitored.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: December 8, 2015
    Assignee: Salisbury NHS Foundation Trust
    Inventors: Rodney Paul Lane, Darren John Hart, Stacey Michael Finn, Paul Nicholas Taylor, Steven Eric Crook, Ian Douglas Swain
  • APPARATUS FOR FUNCTIONAL ELECTRICAL STIMULATION OF THE BODY
    Publication number: 20120197343
    Abstract: A controller is provided for a functional electrical stimulator for attachment to a leg comprising, a connector for a foot switch for sensing foot rise or foot strike, a circuit for responding to said foot switch for generating stimulation pulses and a connector for first and second electrodes for attachment to the leg for supplying stimulation pulses from said circuit The circuit includes a voltage divider of which the foot switch when connected comprises one element, a second element being provided by a digital potentiometer forming part of the controller. A micro controller is configured to make adaptive adjustment of the resistance of said digital potentiometer to take account of the resistance characteristics of the foot switch to provide an output or reference voltage permitting an open/closed state of the switch to be monitored.
    Type: Application
    Filed: October 6, 2010
    Publication date: August 2, 2012
    Applicant: Salisbury NHS Foundation Trust
    Inventors: Rodney Paul Lane, Darren John Hart, Stacey Michael Finn, Paul Nicholas Taylor, Steven Eric Crook, Ian Douglas Swain