Abstract: A sensor device intended to be implemented at the vicinity or inside a nuclear magnetic resonance apparatus, and more particularly on a patient inside the canal of the magnet of a magnetic resonance imager (MRI). The device includes at least two non-metal electrodes intended to be applied to the skin of a patient, and an electro-optical conversion, amplification and filtering module for the electric signals received from the heart by the electrodes. The module is arranged in a shielded casing forming a Faraday cage, and optically connected to a display and/or monitoring apparatus. A support body made of non-magnetic material carries the electrode and the shielded casing containing the module.

Abstract: Defibrillating device equipped with a plurality of connector/electrodes assemblies of different types. Defibrillating device equipped with a plurality of connector/electrodes assemblies of different types, having each at least a connector cable and adapted to be plugged in, in a removable and interchangeable manner, to the casing of the device at a single connection site equipped with a fixed complimentary connector, all of the control (13, 13') and, preferably, adjustment devices (17) of the functioning of the defibrillating device (1) being mounted on the connector (8)/electrodes (9, 9') assemblies, each type of which is intended for a class of authorized user and/or specific application(s), the casing (2) of the defibrillating device (1) having only indicator and/or display devices (2'), and preferably, no control or adjustment device.