ISSYS, Inc. Granted Dialysis and Urology Application Patent for Its Microfluidic Sensing Technology

YPSILANTI, MI - Integrated Sensing Systems, Inc. (ISSYS) announced that the U.S. Patent Office has granted it a utility patent (US 7,879,241) "Method of Treating a Bodily Fluid" .

Doug Sparks, Executive VP of ISSYS, stated that, "This patent describes a new set of application for its resonant microtube sensing technology such as mass flow, specific gravity and density measurements This patent enables the accurate measurement of flow rate and fluid parameters of blood, dialysate and urine. Hematocrit (red blood cell) and urea concentration can be monitored using the specific gravity measurement. The control of dialysate concentration can also be monitored and controlled by using a density measurement which is critical in hemodialysis. It can also be used to prevent accidents involving sterilization fluids in the dialysis process. Leaks and air bubbles can also be detected in the IV lines used in this treatment, improving patient safety. This patent is complemented by the other patents owned by ISSYS in the area of flow sensors and MEMS (MicroElectroMechanical Systems) devices.

Dr. Nader Najafi, ISSYS President and CEO, stated that, "commercialization of ISSYS industrial products over the last ten years has allowed us to evolve our manufacturing infrastructure to be more conducive to medical applications. We are looking forward to the commercialization of the medical products covered by this patent, as well as other medical applications such as smart pumps and IV bags with enhanced drug delivery error monitoring capabilities and our wireless, batteryless implanted pressure sensors for cardiac applications."

Company Background:

ISSYS is a leader in advanced MEMS technologies for industrial, medical devices, microfluidic and scientific analytical sensing applications. Founded in 1995 ISSYS is one of the oldest independent MEMS companies in the US. ISSYS operates a "full manufacturing under one roof," multi-million-dollar, state-of-the-art MEMS fabrication facility located near Ann Arbor, Michigan. With ISO 9001:2008 and ISO 13980 certification, and a quality system designed to meet ISO 13485:2003 (medical device manufacturing), ISSYS is a vertically integrated company dedicated to developing and manufacturing system-level products based on MEMS technology (MEMS Inside), please visit:

Dr.Douglas Sparks Ph.D

Executive Vice President

Integrated Sensing Systems, Inc.

391 Airport Industrial Dr.

Ypsilanti, MI 48198

(734) 547-9896 ext 119

Fax (734)547-9964


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