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The Flowhandy ZAN100 USB is an open, personal-computer-based spirometry system with optional shutter for measuring and analyzing breath flow, volume, and pressure in adult and pediatric subjects for use by pulmonologists, allergists, general practitioners, and occupationalmedicine practitioners in lung-function diagnosis.

The Flowhandy ZAN100 USB is a pneumotachometer spirometry system. The system comprises a Windows personal computer (sold separately) for data collection, analysis, storage, and display; proprietary Betterflow ZAN100 USB software program for the PC; and a Flowlandy, hand-held pneumotach with reusable variable-orifice core, differential pneumatic pressure sensor, and USB interface. An optional computer-controlled shutter may be added to the air passageway to interrupt flow to allow pressure measurements using the on-board pressure sensor.

The ZAN100 measures the pressure drop across the known orifice to indicate the rate of breath flow both in and out of the air passageway. Knowing the flow rate of air from a subject allows the calculation of the most recognized spirometric values for the subject. Closing off the passageway with the optional shutter enables the pressure sensor to take important pressure measurements for the subject's breathing as well.

Here's an analysis of the provided 510(k) summary regarding the Flowhandy ZAN100 USB, focusing on acceptance criteria and supporting studies.

1. Table of Acceptance Criteria and Reported Device Performance

The 510(k) summary only explicitly mentions meeting American Thoracic Society (ATS) requirements. While specific numerical acceptance criteria for each measurement are not detailed, the summary states that performance met or exceeded these requirements.

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