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The SmartMonitor® 2 Infant Apnea Monitor is intended for use in the continuous monitoring of respiration and heart rate of infant patients in a home or hospital environment. The monitor detects and alarms for periods of central apnea and high or low heart rates.

The SmartMonitor 2 is a monitoring device designed to monitor respiration and heart rate. Upon detection of abnormal events, SmartMonitor 2 alerts the caregiver via both visual and audible alarms and records the information for subsequent clinical review. SmartMonitor 2 acquires the electrical activity of the heart via a two or three-lead electrode configuration. The same set of electrodes is used to measure transthoracic impedance and to subsequently develop a respiration signal. Detection of heart beats and respiration breaths is accomplished via softwarebased algorithms, which analyze the ECG and respiration signals. When beats or breaths are detected, SmartMonitor 2 provides feedback by blinking the Heart and Respiration LED's and calculates apnea intervals, average heart rates, and average breath rates for the purpose for identifying ECG and respiration rates that violate preset threshold values. In addition to the alarms, when abnormal ECG and respiration rates are detected, both tabular data and associated waveforms are logged in nonvolatile memory for subsequent review by a Health Care Professional.

The HANNAH Wireless Vital Signs Monitor is indicated for the continuous monitoring of an infant's heart rate, respiration rate, and occurrences of central apnea in home, hospital and other environments.

The HANNAH system is an infant apnea monitor, which is substantially equivalent to legally marketed devices. The HANNAH system includes features incorporated in legally marketed devices. Like most legally marketed infant apnea monitors, the HANNAH incorporates sensors and alarms for monitoring both breath and heart rate. Like most legally marketed infant apnea monitors, the HANNAH system monitors heart rate using a 3-lead ECG measurement. The HANNAH system has the same technological characteristics as legally marketed devices. Because lead wires connected to the infant present a documented risk for strangulation and electrocution, and because lead wires are the source of a substantial majority of the false alarms associated with wired monitors, the decision was made to use radio frequencies to transmit the monitoring information from infant-placed sensors to the central unit. Further, since the more common method of monitoring, impedance pneumography, is highly susceptible to false readings due to interference with cardiac signals and motion artifacts, respiration is monitored using a pressure sensor instead.