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Patent Bolsters QRS Ability to Distribute Products Internationally

September 21, 2004 - QRS Diagnostic, leader in innovative design and development of software-based medical devices in computer cards, announces that its technology partner, BP Sure LLC, has received European Patent No. 0955873 on its method to detect and measure blood pressure sounds in noisy external environments. The European patent corresponds to U.S. Patent No. 5,772,600. QRS Diagnostic has exclusive worldwide rights to the patented method.

QRS Diagnostic encodes the intelligence of physiological data acquisition and analysis into computer cards. QRS computer card devices, with integrated sensors, connect to off-the-shelf computers, Pocket PCs and PDAs, making them work as mobile, full-function medical devices for spirometry, pulse oximetry, diagnostic electrocardiography and blood pressure monitoring.

Our BPCard, the worlds first and only computer card blood pressure monitor, uses the patented method to yield precise, digital blood pressure readings in seconds, said Spencer Lien, chief executive officer, QRS Diagnostic. The European patent strengthens our ability to market and distribute the product internationally.

About QRS Diagnostic

Founded in 1994, QRS Diagnostic, Plymouth, Minn., uses innovative software technology to design and develop FDA-approved medical devices that simplify and reduce the costs of diagnostic testing and patient monitoring. With our patented computer card technology platform, QRS turns PDAs, laptops and handheld PCs into modular, upgradeable and portable medical devices and streamlines the collection and communication of precise physiological data. We enable primary care physicians to cost-effectively practice high-tech medicine while delivering the accuracy that specialists and hospitals demand. The affordability, durability and mobility of QRS devices also advance patient monitoring for home health care, disease management, and personal health management. For more information on QRS, please visit www.QRSdiagnostic.com.

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Note to Editors: For the second consecutive year, QRS Diagnostic has been named to Deloittes Technology Fast 50 Program for Minnesota, a ranking of the fifty fastest growing technology companies in the area by Deloitte &, Touche LLP. Rankings, based on percentage growth in fiscal year revenues from 1999 to 2003, will be announced on October 1, 2004.