Mallinckrodt Initiates Voluntary Imaging Product Recall

ST. LOUIS, March 13 /PRNewswire-FirstCall/ -- Mallinckrodt Inc., a business unit of Tyco International's Healthcare segment, has initiated a voluntary recall of Mallinckrodt Ultra-TechneKow(R) DTE Generators (Technetium Tc-99m Generators) manufactured on or after February 23, 2007, due to a single questionable sample identified during routine sterility assurance testing of a recent generator production run.

The recall is effective immediately and the manufacturing of these products has been suspended until at least early April to allow sufficient time for the production process to be revalidated.

Total sales of these products in the first quarter of fiscal year 2007 were less than $15 million.

About Tyco Healthcare/Mallinckrodt

Tyco Healthcare's Mallinckrodt division offers a diverse line of imaging and pharmaceutical products that diagnose disease and relieve pain. As a major business segment of Tyco International Ltd., Tyco Healthcare develops, manufactures and distributes medical devices and supplies, diagnostic imaging agents, pharmaceuticals and other healthcare products for use in clinical and home settings. With well-known brand names, such as United States Surgical, Autosuture, Valleylab, Mallinckrodt, Nellcor, Puritan Bennett and Kendall, Tyco Healthcare serves needs in the operating room and other hospital settings, long-term care and other alternate care facilities, doctors' offices and the home.

  JoAnna Schooler - Media Relations,    Cole Lannum - Investor Relations
  314-654-3543                          508-452-4343
  joanna.schooler@tycohealthcare.com    cole.lannum@tycohealthcare.com