E-Z-EM Inc., a leading manufacturer of contrast agents for gastrointestinal radiology, today announced that Tyco Healthcare Group LP filed a lawsuit against the company in the federal district court in Texas alleging patent infringement related to E-Z-EM's Empower CT and Empower CTA injector systems. This lawsuit alleges infringement of a single U.S. patent concerning medical fluid injectors.

Commenting on the lawsuit, Anthony A. Lombardo, president and CEO said, "The company respects the intellectual property rights of others and intends to vigorously defend against this action."