Tag: Biomedical Instruments
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Functions & Types of Pneumotachometers for Biomedical Measurements
Pneumotachometers are instruments that measure the instantaneous rate of volume flow of respired gases. They can be broadly classified into two types based on the principle of operation: The pneumotachometer is normally used to measure parameters relating to pulmonary function such as forced expiratory volume (FEV), maximum mid-expiratory volume, & peak flow and to generate…
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Biomedical Instrumentation Questions & Answers
Q1. What are the problems encountered in biomedical measurements? The problems encountered in biomedical measurements are: Q2. What are the key requirements for specifying biomedical instrumentation systems? They key specifications to consider when specifying biomedical instruments include: Q3. What are the diagnoses made from Electroencephalogram (EEG)? The brain cells are referred to as neurons. The…
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Blood Pressure Measurement
Introduction The blood pressure is considered a good indicator of the status of the cardiovascular system. The blood pressure can be measured by: Indirect methods of Blood Pressure Measurement Examples of indirect methods of blood pressure measurement include: Sphygmomanometer In this method the occlusive cuff is inflated until the pressure exerted by the cuff on…
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Why Patient Monitoring Instruments are Important in Medical Care
The main objective of patient monitoring is to have a quantitative assessment of the important physiological variables of the patient during critical periods of their biological functions. In medical diagnostic and research, it is necessary to know their actual value or trend of change. Medical monitoring instruments are used for measuring continuously or at regular…
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Electrocardiogram (ECG)
The recording of the electrical activity associated with the functioning of the heart is known as Electrocardiogram. ECG is quasi-periodical, rhythmically repeating signal synchronized by the function of the heart; which acts as a generator of bioelectric events. This generated signal can be described by means of a simple electric dipole (pole consisting of a…