Which EMC (electromagnetic compatibility) components are helpful for the design and modification of intermediate frequency therapeutic devices?

EMC design for intermediate frequency therapy devices revolves around the output stage. The oscillator generating the intermediate frequency signal should use a frequency-stabilized component (e.g., a crystal) with good power supply decoupling. The power amplifier output stage circuit layout should be compact, and the output transformer (if any) should be well-wound to reduce leakage inductance. A small inductor can be connected in series at the connection point between the output electrode lines and the main unit to suppress high-frequency noise radiation. The device's switching power supply (if any) must meet basic EMI requirements. If battery powered, interference issues are less significant. Conductive foil can be locally applied to the inside of the plastic casing and grounded to suppress radiation. ESD protection should be implemented for the operation and control section.