[A measuring apparatus for pacemaker interference by electromagnetic fields].
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Electromagnetic Fields↗
Biomedical subjects
C van Nimwegen
Publications and source records attributed to C van Nimwegen.
A method for detecting epileptic seizures.
A simple instrument for detecting seizures is described. Vibrations of the bed due to movements of the patient were converted to electrical oscillations by movement of a loudspeaker coil in reversed mode as transducer. To distinguish between normal movements and those caused by a seizure, three criteria were used--the amplitude of the oscillations, the time interval between them, and the duration of a burst of oscillations, each parameter compared with a reference value for each patient.
Beds↗
A simple device for indirect measurement of blood pressure in mice.
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Animals↗