Applying Thin Film Coatings Used in Medical Devices Business
Society has benefited tremendously from the development and utilization of mechanical devices which are implanted inside the body and are used to replace bones and joints, increase bloodflow, and even measure blood chemistry. To further enhance the performance of these devices, the application of thin films to the external surfaces is an ongoing research and development interest at many companies. Engineers have a choice of a variety of technologies to apply these liquid coatings to these often complex surfaces ranging from vacuum technology to direct liquid application. The decision on what technology to use is a function of the liquid precursor used, themechanism of coating formation and the geometry of the object to be coated. A critical qualityand process control criterion is the consistency of the coating on the surface. Fluid deliverytechnology can play an important part in maintaining coating consistency. Pumps and liquid flowcontrollers are technologies being used today. For vapor coating processes, liquid vaporization technology is a critical link in the fluid delivery system. New flow and vaporization technology isavailable that can be applied to fluid delivery to improve the application of medical device coatings.
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