Exhibit 23.1 CONSENT OF INDEPENDENT AUDITORS We consent to the incorporation by reference in the following registration statements and related prospectuses filed by Mallinckrodt Group Inc. under the Securities Act of 1933 of our report dated August 9, 1994 with respect to the consolidated financial statements and schedules of Mallinckrodt Group Inc. included in this Annual Report on Form 10-K for the year ended June 30, 1994: Commission File No. Form S-8, No. 2 - 65727 Form S-8, No. 2 - 72455 Form S-8, No. 2 - 70868 Form S-8, No. 2 - 90910 Form S-8, No. 2 - 94151 Form S-8, No. 33 - 10381 Form S-8, No. 33 - 32109 Form S-8, No 33 - 40246 Form S-8, No 33 - 43925 Form S-3, No. 2 - 96566 Form S-3, No. 33 - 39837 Form S-3, No. 33 - 47081 ERNST & YOUNG LLP ------------------ Ernst & Young LLP St. Louis, Missouri September 23, 1994