Laird Technologies’ EMI Experts Author Article for IN Compliance Magazine

The article, titled “Design and Selection of Shielding Gaskets for Medical Devices and the Effect of Cleaning Solutions on Material Performance,” discusses the results of a study conducted on typical EMI shielding gaskets that were exposed to frequent and aggressive cleaning and sterilization regimens using typical cleaning solutions. The article then examines design considerations in medical devices for protecting the EMI gaskets from cleaning solution exposure.



There are four factors to consider in the service life and performance of an EMI gasket: (1) the number of times the joint is opened and closed; (2) the severity of gasket deformation when the joint is closed; (3) the presence of chemicals and fluids, ozone aging and temperature extremes; (4) inadvertent damage to the gasket during installation and maintenance.



Understanding the environment in which these medical devices are used is important in preventing and addressing EMI issues. The design of the device needs to be one which maintains proper EMI shielding over time in the expected conditions of use. Good design, good materials, and an understanding of use can lead to high reliability in EMI solutions for public health and safety applications.



Anjali Khosla is a Product Manager with Laird Technologies. She has worked with management and marketing of EMI products, and has a Bachelors degree in Marketing and International Business.



Jim Kline has worked for Laird Technologies for over 10 years, specializing in product mechanical design and non-linear finite element analysis. He holds MS and BS degrees in Mechanical and Structural Engineering, and has been awarded several patents for commercial shielding and gasket designs.



Claudine Lumibao-Arm is a Research Chemist with Laird Technologies. She holds MS and BS degrees in Chemistry, and has been involved in the development of new material products and processes.



Douglas McBain is the Global Technology Director for EMI Elastomer products at Laird Technologies. He has been widely involved in the formulation of elastomers, coatings, and thermoset resins. Mr. McBain has a Ph.D. in Organic Chemistry.