Here is the abstract you requested from the DPC_2009_Biomedical technical program page. This is the original abstract submitted by the author. Any changes to the technical content of the final manuscript published by IMAPS or the presentation that is given during the event is done by the author, not IMAPS.
|Low Volume Low Pressure Dispensing Practices|
|Keywords: Dispensing, Volume, Low Pressure|
|Medical devices, or specific portions of them, are often coated with primers, lubricants, drugs or other fluids. As devices become ever smaller and more complex, it becomes increasingly difficult for manufacturers to meet stringent tolerances and cosmetic requirements. And as drug coating technologies continue to advance and win regulatory approval, the need for accurate, reliable coating systems capable of consistently dispensing precise amounts of these materials is increasing. Proper coating placement, coverage, and thickness are critical in many medical applications including electronic conformal coatings. Manual tools and spray systems that allow only coarse adjustment may not provide the controlled, consistent coverage needed to achieve predictable process results and reliable device performance. Low Volume Low Pressure valve systems use a low fluid flow rate so that only very low air pressure is required to apply the fluid as a soft spray. This approach provides high transfer efficiency without overspray or mist. A variety of spray patterns can be produced by changing the nozzle and air cap for instance.|
|Brad Rogers, Business Development Manager - Life Sciences
EFD Inc. - A Nordson Company
East Providence, RI