EXHIBIT 2.1 AMENDMENT TO AGREEMENT AND PLAN OF MERGER This Amendment to Agreement and Plan of Merger (the "Amendment") is entered into this sixth day of December, 1998 by and among MEDTRONIC, INC., a Minnesota corporation ("Parent"), AC MERGER CORP.,...Agreement and Plan of Merger • December 17th, 1998 • Avecor Cardiovascular Inc • Surgical & medical instruments & apparatus
