Medical devices for implantation into the body are coated with anti-infective and or anti-inflammatory agents. The medical devices can be, for example, endotracheal/tracheostomy tubes and catheters. The devices have a polymer coating containing an anti-infective agent and/or an anti-inflammatory...http://www.google.com.tw/patents/US5762638?utm_source=gb-gplus-share專利 US5762638 - Anti-infective and anti-inflammatory releasing systems for medical devices 
