Exhibit 2.3 AMENDMENT NO. 2 TO AGREEMENT AND PLAN OF MERGER This AMENDMENT NO. 2 TO AGREEMENT AND PLAN OF MERGER (this "Amendment") is entered into this 15th day of May, 2002 by and among The Aristotle Corporation, a Delaware corporation (the...Agreement and Plan of Merger • May 15th, 2002 • Aristotle Corp • Surgical & medical instruments & apparatus • Delaware
