Continuation Strengthens QRS’ Patents on Diagnostic Devices in Computer Cards

MINNEAPOLIS - May 25, 2004 - QRS Diagnostic, leader in innovative design and development of software-based medical devices, announces that the United States Patent and Trademark Office approved a new patent on its design of medical devices contained in computer cards, including PCMCIA PC Cards and Compact Flash (CF) Cards. Patent No. 6,712,762, approved on March 30, 2004, is a continuation of Patent No. 6,159,147, which QRS received on December 12, 2000. The new patent fortifies QRS’ intellectual property rights on its computer-card medical device technology.

“With our patented technology, QRS encodes the intelligence of physiological data acquisition and analysis into computer cards,” says Spencer Lien, chief executive officer, QRS Diagnostic. “Our computer card devices, with integrated sensors, slide right into off-the-shelf notebook computers, Pocket PCs and PDAs. This makes them work as full-function medical devices, and that’s the key to the mobility and affordability of our devices for spirometry, pulse oximetry, diagnostic electrocardiography and blood pressure monitoring.”

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.