TMD -- The market for plastic medical devices is growing despite the global economic slowdown. The medical device market is therefore quite optimistic to achieve double digit growth at 15% in Asia, 10-12% in America, and 6-8% in Europe for 2009 and 2010. Although medical devices may differ widely in design and use characteristics, certain factors determine susceptibility of a device to microbial contamination and biofilm formation: duration of use, number and type of organisms to which the device is exposed, flow rate and composition of the medium in or on the device, device material construction and conditioning films on the device.