Spirometers refer to special devices used to determine the function of the lungs and airways of human beings. They are commonly referred to as differential transducers with the ability to accurately measure the rate at which respiration occurs in individuals. It records the rate and amount of air inspired and expired within a specified period of time. This device has helped to improve the manner in which lungs function in a many of patients.
The spirometer is a component of the highly specialized equipment used to administer simple Pulmonary function Tests (PFTs). Most physicians use this device while conducting preliminary tests to rule out the incidence of various lung diseases including asthma, bronchitis and emphysema from these initial tests. It is also an important tool used in the assessing various scenarios such as the effect that different contaminants have on the functioning of the lungs, the progress made while treating a certain disease, effect of the different medications and in establishing the various causes of shortness of breath.
There are a number of different types of spirometers. Each of them has special features to improve the nature of results obtained. The whole body plethysmograph allows physicians to conduct the process with greater precision compared with the other types. The patent being investigated is usually enclosed in a small area during the procedure.
The basic principle behind the operation of the pneumotachometer is the venturi effect. Th...