Exhibit (1) FIRST AMENDMENT TO RIGHTS AGREEMENT This Amendment dated December 29, 1997 ("Amendment") to the Preferred Shares Rights Agreement ("Agreement"), dated as of December 6, 1996, is between Heartstream, Inc., a Delaware corporation (the...Preferred Shares Rights Agreement • January 28th, 1998 • Heartstream Inc/De • Electromedical & electrotherapeutic apparatus • Delaware
