User's Manual

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TECHNOLOGY OVERVIEW
CardioNet integrates patient monitoring, wireless communications technology, and the Internet
to allow cardiac rhythm related problems to be quickly identified, quantified, and treated.
The CardioNet System is comprised of a sensor with three leadwires, a monitor, and base.
The lightweight sensor (invisible under clothing) is worn by the patient. It continuously records
and analyses two channels of ECG and transmits the ECG by a radio frequency (RF) link to
the monitor.
The monitor is approximately the size of a PDA device. It has a powerful microprocessor,
extensive memory, embedded algorithm, LCD display, and wireless modem. The monitor is
powered by a rechargeable lithium battery, which powers the monitor for at least 10 hours.
The C5 monitor’s microprocessor is programmed with an algorithm that identifies arrhythmias
according to parameters selected by the prescribing physician. The standard algorithm
detection parameters and physician notification criteria established by CardioNet’s Medical
Advisory Board can be individualized for each patient, practice and physician.
The sensor continuously acquires the patient’s ECG in real time, and regularly transmits this
information to the monitor. When an abnormal rhythm has been identified or when the patient
enters a symptom, the data is transmitted to the CardioNet Monitoring Center for review,
interpretation and response by a certified monitoring specialist.
When the patient is at home and base is in use, the patient’s telephone line may be used to
transmit the data. Cellular communication is the primary means used to transmit events. If an
event occurs when the patient is in an area where cellular coverage is inadequate, the monitor
stores the data and transmits the event when the patient has moved into an area with cellular
coverage – or uses regular telephone lines to transmit the event once the monitor can
communicate with the base.
The CardioNet C5 Monitor stores a minimum of 30 days of the patient’s ECG data. Physicians
can request that CardioNet “fetch” additional data, beyond that contained in the Telemetry
Reports, by contacting the CardioNet Monitoring Center.