The effect of vibration on medical devices can be understood through a combination of vibration analysis and testing. This blog discusses the medical devices most susceptible to vibration, basic theory and methods of vibration analysis, and the benefits of using modal analysis in the development of medical devices. Modal analysis, the most fundamental portion of vibration assessment, can inform design decisions for critical component placement and overall device implementation due to the mode shapes and natural frequencies it quantifies.
Vibratory testing (including quantified transportation and environmental conditions) is mandated by IEC 60601-1-11 or equivalent standards for certain devices. These standards should be consulted when planning vibrations analysis to ensure the full range of conditions are represented ahead of the tests. Leading with an effective analysis of vibrations derisks product architectures and a clear path forward for development.
Which medical devices are most susceptible? Vibrations analysis is best used when developing sensitive medical devices. Though vibrations should be considered a technical and safety risk in all devices, the most susceptible medical technologies include: Surgical Robotics MRI Ultrasound Microscopes Ventilators and Respirators Laboratory Analyzers Electrocardiography (ECG) and Electroencephalography (EEG) Laser Systems Implantable Devices Infusion Pumps Many critical aspects of these systems are affected by vibrations includin.