PDF Ebook Medical Instrumentation
Whether it be in industry, a hospital or university, the design, development and approval of a medical instrument is a complex, lengthy and expensive process. Very few new ideas survive this process. To be successful, there must be a champion for the project, who may be the original inventor, or someone else interested. From the original concept, there must be hypothesis testing research, market research, compilation of specifications, design, development, prototype manufacture, testing, regulatory approval, manufacturing, marketing and sale, to ensure the success of this new idea.
Instrumentation involves obtaining a signal representing a measure of a body function by means of a transducer, and then processing this signal.
The measure of body function is called the measurand. It may be internal, for example blood pressure, and thus require a special transducer or sensor, or it may be on the body surface, such as the electrocardiogram (ECG): the electrical signal obtained from the heart. It may be derived from tissue samples removed from the body, such as blood. The measurand may emanate from the body, such as infra-red radiation, or it may be derived as a result of energy being put into the body, for example x-rays. Measurands belong to the following categories: biopotential, flow, pressure, velocity, acceleration, force, dimension (imaging), impedance, temperature and chemical concentration.
Download
PDF Ebook Medical Instrumentation
Posted in :
