CHARLESTON, W. Va. - Pelvic mesh defendant American Medical Systems Inc. (AMS) will be allowed to conduct limited discovery into a medical lien buyer that is allegedly involved in a "scheme" to perform explant surgeries for litigation purposes, a federal magistrate judge in West Virginia ruled Oct. 11 (In Re: American Medical Systems, Inc., Pelvic Repair Systems Products Liability Litigation, MDL Docket No. 2325, No. 2:12-md-2325, S.D. W.Va., Charleston Div.).