Patents by Inventor JOHAN MATHIEU ALFONS HELSEN

JOHAN MATHIEU ALFONS HELSEN 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).

  • MRI involving a distributed sensor to monitor the temperature and/or strain of coil cables and traps
    Patent number: 10267875
    Abstract: A magnetic resonance (MR) system 10 includes at least one cable (30, 32, 34) that has at least one optic fiber component (31C, 31E, 33B, 35B) and an optical monitoring unit (37) in communication with the at least one optic fiber component (31C, 31E, 33B, 35B). The optical monitoring unit (37) is configured to determine temperatures at each of a plurality of positions along the at least one optic fiber component (31C, 31E, 33B, 35B). The optical monitoring unit (37) is further configured to halt an operation of the MR system (10) in response to at least one determined temperature. In accordance with the invention, the temperature of one or more cable traps forming part of the cable can be monitored and a faulty cable trap can be detected.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: April 23, 2019
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Laurens Cornelis Van Leeuwen, Johan Mathieu Alfons Helsen, Paulus Cornelius Hendrikus Adrianus Haans
  • MRI INVOLVING A DISTRIBUTED SENSOR TO MONITOR THE TERMPERATURE AND/OR STRAIN OF COIL CABLES AND TRAPS
    Publication number: 20160291103
    Abstract: A magnetic resonance (MR) system 10 includes at least one cable (30, 32, 34) that has at least one optic fiber component (31C, 31E, 33B, 35B) and an optical monitoring unit (37) in communication with the at least one optic fiber component (31C, 31E, 33B, 35B). The optical monitoring unit (37) is configured to determine temperatures at each of a plurality of positions along the at least one optic fiber component (31C, 31E, 33B, 35B). The optical monitoring unit (37) is further configured to halt an operation of the MR system (10) in response to at least one determined temperature. In accordance with the invention, the temperature of one or more cable traps forming part of the cable can be monitored and a faulty cable trap can be detected.
    Type: Application
    Filed: October 31, 2013
    Publication date: October 6, 2016
    Inventors: LAURENS CORNELIS VAN LEEUWEN, JOHAN MATHIEU ALFONS HELSEN, PAULUS CORNELIUS HENDRIKUS ADRIANUS HAANS