Wireless Telemetry System Monitors Patients

A patient-worn telemetry monitoring system has been successfully implemented at major hospitals worldwide, resulting in both clinical and cost benefits.

The Infinity M300 provides the performance of a full-size patient monitor, but unlike traditional telemetry devices that just transmit the data to a remote viewing station, it includes built-in vital signs processing capabilities. A color display shows electrocardiogram (ECG) readings for all monitored leads, heart rate, pulse oximetry (SpO2), and electrode status, enabling the clinical staff to access monitored data at the patient site. The display also shows demographic data to help confirm the patient's identification.


The device can also sound alarms in the patient's vicinity and enables staff to control them without having to go to the central station or use additional equipment that can compromise patient mobility. Additional features include a built-in battery that can be recharged via a bedside charger while the patient wears the device, or at a patented multidevice charger at the central monitoring station; and a "find device" function to help locate lost devices.

The M300 has received Wi-Fi certification and has passed interoperability testing, including Institute of Electrical and Electronics Engineers (IEEE) standards 802.11b and 802.11g. The device shares the same Wi-Fi access points as other wireless Infinity patient monitors, and supports WPA2 standard encryption, thus providing advanced data security and faster communication compared to previous wireless standards. The Infinity M300 monitor is a product of Draeger Medical Systems (Lübeck, Germany).

"Wi-Fi certification provides peace of mind by offering interoperability, standard-based security, and easy installation,” said Lars Roth, product manager for the Infinity M300 at Draeger. "This not only supports patient safety, but also can reduce costs because the device can run on the hospital's existing wireless network rather than requiring a separate, proprietary network. It also has an environmentally conscious rechargeable battery.”

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Draeger Medical Systems