Maquet Cardiopulmonary GmbH (MCp) became aware of various failure modes in regard to the Quadrox-I/-Id, vhk 11000 and vkmo 10000/ 11000 products in the course of six non-conformity reports. The identified failure modes can be divided into two categories: a potentially compromised sterile barrier and a deviation from the coating specifications. Recall start date: March 28, 2023