Respiratory diseases are a significant and common cause of death all around the world. It is of great importance for biomedical engineers to understand the principles of the diagnostic techniques in order to apply a successful treatment.

One of those diagnostic techniques is spirometry, a pulmonary function test that measures the lung function by means of the volume and flow of air that can be inhaled and exhaled. The spirometry is an important tool to assess conditions such as asthma and pulmonary and cystic fibrosis, among other respiratory diseases.

The Computer Controlled Biomedical Spirometry and Breath Teaching Unit, "BISBC", performs a spirometry test and displays its results with a diagnostic aim. It also includes a breath simulator that reproduces the test performed by different types of patients. The BISBC allows the respiratory function parameters and all the parameters related to the spirometry tests to be understood in an easy and comprehensive way.

The BISBC unit is provided with a set of practical exercises, through which the user will understand the basic principles about the respiratory function and apply them to interpret the results of a spirometry test.

The Computer Controlled Biomedical Spirometry and Breath Teaching Unit, "BISBC",consists of a professional spirometer and a breath simulator composed by an electricallinear actuator and two lung simulators. The lung simulators have similar volumes tothe human lungs and allow for reproducing the air flow and volume of different patientsduring the spirometry test.

This Computer Controlled Unit is supplied with the EDIBON Computer Control System (SCADA), and includes: The unit itself + aControl Interface Box + a Data Acquisition Board + Computer Control, Data Acquisition and Data Management Software Packages, forcontrolling the process and all parameters involved in the process.