A card connector includes an insulating housing ; a number of contacts received in the insulating housing and a shell. Total operating time during which the terminal has been operated by the battery, number of recharges that have been performed on the battery, or actual operating time during which the terminal has been operated on a single charge of the battery after completion of charging, is monitored. A proximal inlet portion of the filter body has two inlet openings sized to allow blood and embolic material enter the filter body, and a distal outlet portion of the filter body has a plurality of small outlet openings to allow through-passage of blood, but to retain embolic material within the filter body.