A microprocessor is a computer processor that incorporates the functions of a central processing unit (CPU) on a single integrated circuit (IC) or sometimes up to 8 integrated circuits. A microprocessor is programmable, multipurpose, clock-driven, register … Read More
We have different types of biomedical recorders named according to the types of bio signals they capture. Some of these instruments used to record data in biomedical measurements include:
The Electrocardiograph (ECG) is an instrument which records the … Read More
Cardiac monitor is used to monitor patients with cardiac problems. This instrument finds use when monitoring important physiological parameters in the intensive care unit (ICU) like the heart rate or shape of the electrical waveform produced by the heart. This … Read More
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 … Read More
A ventilator is used on patients who go into respiratory failure and cannot maintain breathing for some reasons. Respiratory failure occurs when the body’s metabolic needs are not met. If this is not corrected, then the patient will have laboured … Read More
Ventricular fibrillation is a serious cardiac emergency resulting from asynchronous contraction of the heart muscles. This uncoordinated movement of the ventricle walls of the heart may result from coronary occlusion, from electric shock or from abnormalities of body chemistry. Due … Read More
The arrhythmia means abnormal rhythm of the heart. Rhythmic action of the heart is initiated by regularly recurring electrochemical impulses originating at the natural cardiac pacemaker at the Sino-atrial anode (SA). Each pacing impulse spread over the surface of the … Read More
Recorders provide permanent visual trace or record of an applied electrical signal. The most basic electronic recording system consists of 3 important components:
The electrode picks up the bioelectric potentials whereas the transducer converts the … Read More
Imaging systems employ pulsed ultrasound or the pulsed Doppler mode. The instrumentation system consists of:
The application of ultrasonic in medical field is based on sonar principle as used by bats, anglers with fish detectors, and ships at sea. This is a totally non-invasive procedure. Acoustic waves are easily transmitted in water and are … Read More
