Alice PDx Sleep Diagnostic System

The Alice PDx portable diagnostic recording device is intended for Obstructive Sleep Apnea screening, follow-up and diagnostic assessment of cardio-respiratory sleep disorders.

The flexible and portable system incorporates advanced features required to meet today''s Sleep Medicine needs. It satisfies the portable testing requirements for American Academy of Sleep Medicine guideline levels II, III and IV and provides capabilities of basic screening to advanced diagnostic evaluation. The Alice PDx enables patients to be tested outside of the lab such as Ward and Patients'' home without compromising study results and helps clinicians avoid the costs associated with facility investment.

Features and benefits:

ECG and ExG capability

The Alice PDx device supports a single lead, six-lead, or seven-lead ECG. The optional ECG yoke provides a three-lead ECG (five wires). This provides seven total measured and derived ECG channels which provide data to help assess OSA in patients who may have cardiac comorbidities. The optional ExG yoke provides thirteen inputs to provide four EEG/EOG channels and three EMG channels, including ground and references. This enables level-two application for advanced sleep analysis.

Ease of CPAP titration study

Once connected to the PAP therapy device, the Alice PDx will record data from the device during the sleep study. Depending on the type of therapy device, it will record some or all of the following channels: Leak, Tidal Volume, Pressure, Flow and Event Flags. This data is provided to allow clinicians to determine the therapeutic benefit of the prescribed therapy device.

Good Study Indicator (GSI)

The Good Study Indicator is predicated on airflow and oximeter signal quality. It displays the amount of "good quality data" needed for a study to be complete and valid. The indicator measures patient airflow, gathered by the nasal cannula and/or the oral thermistor, airflow from therapy devices, and pulse oximetry, gathered by the SpO2 sensor. Without either of these signals, the sleep study would be declared diagnostically invalid because of insufficient data.

The GSI visually displays the amount of good quality data in 25-percent increments on the Alice PDx display screen. As a result, a patient using the Alice PDx can easily communicate this information to the healthcare provider who can then determine if the patient needs to repeat the study. The provider can then educate the patient remotely on how to better apply the sensors, and have the patient repeat the study. The provider is spared the frustration of receiving insufficient study data and the inconvenience and effort involved in scheduling patients for a repeat study.

Multi-Night Recording Capability

With the SD card memory and two-to-three night battery life, the Alice PDx can collect information from multi-night recordings when needed. The Alice PDx can be set to start and stop recording automatically to minimize the risk of the patient forgetting to do it.

Single Software Application

The Alice PDx can be connected directly to a computer running the proven Sleepware software application. Sleepware can display live or pre-recorded data in a resolution consistent with the computer hardware specifications. Sleepware provides a single software application for lab and portable testing.

Philips receives MDEA award for Alice PDx

The Alice PDx Portable Sleep System is a winner in the 2010 Medical Design Excellence Awards (MDEA) competition, in the category of general hospital devices and therapeutic products.

Specifications:

Total Channels: Up to 21 with Optional ECG and ExG Yokes

Standard Channels: Pressure Based (w/ snore) and Thermal Airflow, zRIP Effort (2), Body Position, SpO2 (also Pleth and Pulse Rate), Respironics Therapy Device Parameters, Pressure and Flow from non-respironics therapy devices.

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