Exhibit No. 23.1

We consent to the incorporation by reference in this Registration Statement on Form S-8 of our reports dated March 4, 2014, relating to the consolidated financial statements and financial statement schedule of Greatbatch, Inc. and subsidiary (the “Company”), and the effectiveness of the Company’s internal control over financial reporting, appearing in the Annual Report on Form 10-K of Greatbatch, Inc. for the year ended January 3, 2014.