On Feb. 28, 2005, Quinton Cardiology Systems and Cardiac Science announced the signing of a definitive merger agreement resulting in a combined company called Cardiac Science Corporation.

Under the terms of the merger agreement, the parties have formed a new holding company, and upon the closing of the transaction, the shareholders of each company will receive common stock of the new holding company in exchange for their shares. The new holding company will be named Cardiac Science Corporation and upon approval by the Nasdaq, will have its shares traded on the Nasdaq National Market under the symbol “DFIB.”

Quinton Instruments was founded in 1953 by University of Washington biomedical engineer Wayne Quinton with the initial focus of developing the first treadmill for cardiac stress testing. Quinton was a pioneering innovator and developer of over thirty biomedical devices ranging from treadmills to cardiac diagnostic equipment.