B2565 - STRUMENTAZIONE PER L'INGEGNERIA BIOMEDICA

Learning outcomes

The lessons illustrate the working principle, the functional architecture and the technical features of instrumentations and devices for diagnostic use. Students will acquire the following skills: - assess the performances of a biomedical device and evaluate its costs/benefits; - define the functional and technical specifications of a device; - execute a outline plan of a device; - realize a virtual instrumentation prototype and its user interface; - carry out electrical safety tests of a biomedical device. At the end of the classes, the students will be able to look up and interpret technical papers and national/international standards of biomedical devices; the students will be able to bring themselves up to date on the methodologies, techniques and instrumentation within the field of biomedical engineering.

Course contents

Part I

Medical devices: definition and classification. Functional architecture of biomedical instrumentations. Methods for dealing with errors and noise during the measurement of biological signals. Assessment of static and dynamic performances of a system for biomedical measurements.

Part II

Resistive and capacitive sensors and their use in the biomedical instrumentation. Temperature measurements. Detection electronic circuits. Electrochemical potential and electrochemical sensors. Electrodes for superficial and cellular biopotential measurements. Electrode impedance. Measuring and monitoring arterial blood pressure.

Part III

Operational amplifier. Inverting, non-inverting, buffer and differential amplifiers. Common mode rejection ratio (CMRR). Input and output impedance of inverting and non-inverting amplifier. Biomedical instrumentation preamplifier: functional specifications and circuit. CMRR and input resistances of the instrumentation preamplifier. Frequency response. Diagram of analogical filters. Measurement of biopotentials. Analysis of the electroencephalograph circuits.

Readings/Bibliography

G. Avanzolini, E. Magosso, Strumentazione biomedica: progetto e impiego dei sistemi di misura, Patron Editore, Bologna, 2015.

J.G. Webster, Medical Instrumentation. Application and Design, John Wiley & Sons, 1998

Teaching methods

The course will consist in classroom lessons, during which the teacher will explain the single subjects, and will develop exercises to help students to familiarize with circuit analysis and design, and to prepare them for the final examination. Laboratory experiences (mandatory for the students) will be performed to allow practical contents to be practiced and acquired by the students.

In consideration of the type of activity and the teaching methods adopted, the attendance of this training activity requires the prior participation of all students in the training modules 1 and 2 on safety in the study places [https://elearning-sicurezza.unibo.it/], in e-learning mode and Module 3 – Specific Training on Health and Safety.

Assessment methods

The students will be evaluated with a written examination, to test their abilities to analyze simple circuits and design an outline plan of a biomedical measurement system, and an oral examination during which students' ability to expose the course subjects organically, concisely and with property of language will be verified.

Students with Specific Learning Disabilities (SLD) or temporary/permanent disabilities are strongly encouraged to contact the University office in charge well in advance, at the following address: (https://site.unibo.it/studenti-con-disabilita-e-dsa/en ). The office will be responsible for proposing any necessary accommodations, which must be submitted to the course instructor at least 15 days in advance. The instructor will assess their appropriateness in relation to the learning objectives of the course.

Teaching tools

Blackboard, notebook, projector, lecture notes, Biomedical Engineering Laboratory

Office hours

See the website of Cristiano Cuppini