Abstract: A medical device, such as an electrocardiogram (ECG) monitoring apparatus, provides galvanic isolation between low voltage electronics and a plurality of externally exposed ECG (patient contact) lead wires and electrodes. The ECG lead wires and/or electrodes can potentially make unwanted contact with sources of high voltage, such as from defibrillation pulses generated by defibrillation devices. The defibrillation pulses can cause damage to the low voltage electronics within the ECG monitoring apparatus. Electrical resistance is provided outside of the ECG lead wires and electrodes and separate from the low voltage electronics to protect against misdirection of a defibrillation pulse towards the low voltage electronics, and to protect against misdirection of a defibrillation pulse away from the patient for which the benefit of the defibrillation pulse is intended.

Abstract: An apparatus for crimping down a radially expandable stent to a pre-determined profile, the apparatus has at least one set of rollers, each set including a first roller having at least a first groove and a second roller also having at least a first groove, the first groove on the first roller having the same dimensions and corresponding in relative location along the roller with the first groove on the second roller. The first groove on the first roller is aligned with the corresponding first groove on the second roller so that the respective first grooves together define an aperture whereby on rotation of the rollers, a stent advanced toward the rollers is drawn into the aperture thereby crimping down the stent to the pre-determined diameter.