1 EXHIBIT 23.1 INDEPENDENT AUDITORS' CONSENT We consent to the incorporation by reference in Registration Statements No. 33-95630, No. 333-04192, and No. 333-04190 of MiniMed Inc. on Form S-8 of our report dated February 9, 2000 (except for Note 15, as to which the date is March 8, 2000), appearing in this Annual Report on Form 10-K of MiniMed, Inc. for the year ended December 31, 1999. /s/ DELOITTE & TOUCHE, LLP - ----------------------------------- Los Angeles, California March 30, 2000