subject: Medical Power Supplies [print this page] 3.The requirement for an additional isolation barrier in equipment which is in intentional physical contact with patients Research and understanding of legislation as well as the requirements of target customers will lead to meaningful new product developments and incorporations, such as class II approvals for homecare devices, highly efficient convection-cooled designs for low noise patient area devices and defibrillator-proof DC-DC converters for applied part applications.