Electricial and Electromagnetic Safety and Interactions in Biomedical Devices
Electric circuits, transmission lines, the electromagnetic propagation.
KNOWLEDGE AND UNDERSTANDING:
The student will be able to know, understand and analyze the three main risks of the biomedical area: direct contact with live parts, biological effects of electromagnetic fields and immunity of biomedical equipment to electromagnetic interference. In addition, the student will know and will be able to use the techniques of measurement and control in accordance with the technical regulationsCAPACITY TO APPLY KNOWLEDGE AND UNDERSTANDING:
This free-choice course will give to the student the fundamental knowledge related to the interaction of electromagnetic waves with biological matter. It will also give to the student the basic elements to design and operate with biomedical devices, in compliance with safety requirements and protection against electromagnetic interference as requested by the European and national regulations.
This multidisciplinary course will improve the autonomy of the student from both judgement and learning capacity point of views It will improve also its capacity of synthesis and its clarity of exposition
Class lectures (42 hours).
Review of electric circuits, mathematics of the decibel, Fourier series and of the electromagnetic fields.
Electrical safety: hazard recognition, effects of electricity on the human body, electrical hazard protections, work practices. Electrical safety of medical equipment: physiological effects of electricity, body and skin resistances, macroshock and microshock, codes and standards, classification of medical equipments, equipment design, grounding, ground fault interrupters, isolated power system and its monitoring. The IEC 60601 standard. Non-ionizing radiation. The electromagnetic spectrum. Full wave electromagnetic simulators: the finite-difference time-domain. Dielectric properties of tissues. Laser awareness. Exposure to shortwave and mediumwave broadcasting stations. Magnet awareness. Radiated and conducted susceptibility, electrostatic discharge (ESD).
Laboratory practice (6 hours).
Measurements of electromagnetic field at low- and radio- frequency. TEM cells and reverberation chambers. Field probes and spectrum analyzer. Laboratory practice of radiated and conducted susceptibility, and ESD.
Development of the examination
LEARNING EVALUATION METHODS
An oral exam will evaluate the student skill. During the exam, two or more topics developed during the course will be discussed.
LEARNING EVALUATION CRITERIA
To obtain a positive evaluation, the student must demonstrate that has understood the concepts presented in the course, and must demonstrate that has completely understood the electrical safety of biomedical devices and the interactions between electromagnetic field and biomedical devices.
LEARNING MEASUREMENT CRITERIA
The vote is an average of the each response weighted according to the complexity of the question.
FINAL MARK ALLOCATION CRITERIA
The evaluation is positive when the student obtains the sufficiency, i.e. 18/30 points. The highest rating is achieved by demonstrating a very good understanding of the course content. Praise is given to students who have demonstrated an excellent understanding of all the discussed topics.
Lecture notes available on the moodle website.
- Biomedical Engineering (Corso di Laurea Magistrale (DM 270/04))