EXHIBIT 21.1

Name of	Jurisdiction of
Subsidiary	Incorporation
Breas Medical AB	Sweden
Marquest Medical Products, Inc.	Colorado
Sleep Services of America, Inc. (formerly, National Sleep Technologies, Inc.)	Pennsylvania
Stelex—The Validation Group, Inc. (formerly, The Validation Group, Inc.)	Pennsylvania
Vital Path, Inc.	Pennsylvania
Thomas Medical Products, Inc.	Pennsylvania
Vital Signs Limited	United Kingdom
Vital Signs MN, Inc.	Minnesota
Enginivity	Delaware

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