Abstract: An extractable cardiac probe comprising a catheter (4) and a sleeve (3) that is at least partially deformable and mountable to the catheter. The procedure for application of the extractable probe uses an extractor device (11) equipped to pass between the sleeve and catheter to deform the sleeve (3) elastically to permit removal and replacement of the catheter.

Abstract: A cardiac stimulator is provided which is controlled by the arterial temperature of a patient. The cardiac stimulator includes a stimulation element connected to an electrical cell, and a connector connected to the stimulation element. A probe has a temperature sensor and at least one stimulation contact which are connected electrically to the connector by conductors. An adjustable electrical resistor, adjustable from outside the housing, is connected to the housing and is inserted in series between at least one of the conductors of the probe and the stimulation element. The cardiac stimulator also includes means for adjusting the adjustable electrical resistor which is accessible from outside the housing. This means for adjusting advantageously enables the setting of substantially the entire electrical resistance of the stimulation element after fitting, regardless of the arterial temperature and inherent resistance of the probe.