Medical device maker Integra LifeSciences Holdings Corp. said Wednesday it is recalling some collagen products that were made at a facility in Puerto Rico because of manufacturing problems. The company said it is taking some production lots of its DuraGen and Dural Graft Matrix products off the market because of possible “deviations from approved manufacturing processes.” The products were made at a facility in Añasco, Puerto Rico, between December 2010 and May 2011 and between November 2012 and March 2013. Integra said it isn’t aware of any side effects related to the manufacturing problems.