Allied Orthopedic Appliances, Inc. v. Tyco Healthcare Group L.P.

ORDER: 1) DENYING PLAINTIFFS’ MOTION FOR CLASS CERTIFICATION; AND 2) DENYING DEFENDANTS’ MOTION TO EXCLUDE THE TESTIMONY OF JOHN C. BEYER, PH.D

MARIANA R. PFAELZER, District Judge.

I

INTRODUCTION

In this putative antitrust class action, Plaintiffs1 are direct purchasers of Defendants’2 pulse oximetry sensors and cables, also called consumables. Plaintiffs challenge three categories of predatory conduct that they claim led every direct purchaser of Tyco consumables to pay excessive prices in the class period: (1) “market-share discounts,” through which purchasers can access lower prices by…