Oxycon Mobile
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FDA approved (K023120)
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Wireless portable ergospirometry system
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Is an accurate and reliable system that allows the determination of a subjects' metabolic response while exercising or working. The system records the data, breath-by-breath, based on the "Open System Approach". It is a light battery operated portable ergospirometry system that is mounted to the subjects' body via a comfortable vest. The Oxycon Mobile allows testing in all groups of persons; from children to adults and from patients to athletes. The breath-by-breath data is collected through a facemask or mouthpiece and is sent to a host computer system via wireless transmission (telemetry), making the device suitable for use in a non-laboratory environment.
Fields of Application: sport and exercise, rehabilitation, work environment.
Windows based software, including Spirometry, Flow-Volume program, on-line registration program for the transmitted data, evaluation software and reporting system.
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Hardware
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Two compact modules mounted either to the subjects' chest or to the back of the subject.
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1. Sensorbox (SBx): housing the fast response electrochemical oxygen measuring cell (response 80 ms after digital filtering) and a very fast hot wire carbon dioxide analyzer (response less then 80 ms).
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2. Data exchange unit (DEx): unit that collects data from the Sensorbox (ventilation, O2, CO2 and heart rate) and sends it telemetrically (range 1000 m in open space area) to a base station connected to a computer.
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| - The volume measurement is done with a very light precise bi-directional digital volume transducer (DVT) which can be placed directly in the mouth; it is insensitive to water vapor and breathing gases; dead space 30 mL.
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| - An integrated Polar(r) heart rate receiver and belt is used to measure heart rate.
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| - Earphone: making it possible to give the subject information about the systems performance.
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| - Event Button: making it possible to mark events for later evaluation during a field test.
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| - The Data exchange unit is equipped with an integrated flashcard (32 MB) as back-up memory to store the breath-by-breath data in addition to the wireless transmitted data. It also contains the rechargeable battery.
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| - Power and Calibration Unit (PCa): the Oxycon Mobile's base station is connected to a desktop or notebook computer via USB-interface and contains a telemetry receiver/transmitting unit, as well as, a fully integrated automatic calibration system for gas analyzers, volume and flow control.
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| - Battery Charger: capable of charging two batteries simultaneous.
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| - Carrying Case: containing all units and essential parts to easily move the Oxycon Mobile from one place to another.
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Software:
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| - Calculation, display and printout of an extensive, selectable parameter list.
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| - Off-line input of texts, blood gas and lactate values.
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| - "Intra-breath" analysis for the display of breath-by-breath data including real time display of VO2, VCO2, RER and associated parameters.
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| - Automatic calculation or manual calculation of the anaerobic threshold (AT).
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| - On-line display of maximal pretest flow-volume loop, together with actual exercise flow-volume traces.
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| - Database for storing and retrieving patient data.
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| - Predicted value editor for user specific formulas. Several regression formula pre-settings are available for each parameter.
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| - Real-time display of individual parameters including display of limit values in order to assure optimal patient's safety.
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| - Automatic workload protocols for bicycle and treadmill can be created.
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| - Output protocols for breath-by-breath parameters combined with graphs. Output reports for the calibration data, real time data, averaged values, total parameters and useful graphs are also available. User specific reports can be created with the Report Designer program.
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| - Macros: Freely definable subprograms for automatic load-control, automatic blood pressure measurement, instructions for the test supervisor, e.g. to take blood samples, etc.
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IntelliSupport:
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| - Simultaneous display of decision flow-charts, graphs, as well as numerical display of measured and predicted data.
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| - Interpretation help, according to Wassermann's: "Principles of Exercise Testing and Interpretation".
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| - User-specific, non-automatic suggestions.
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| - User-specific limits for normal ranges.
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| - User-specific predicted values.
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