Electroencephalography is an electrophysiological monitoring method to record electrical activity of the brain. The Source of EEG is is WITHIN the cerebral cortex by pyramidal cells. The 10-20 System of Electrode Placement is a method used to describe the location of scalp electrodes. Each electrode placement site has a letter to identify the lobe, or area of the brain. A stable electrical connection between electrode and scalp is key to recording clean EEG signals. EEG waveforms with different frequency are displayed. Different types of montages are discussed. Standard EEG Test is carried out with analog or digital EEG equipment. Ambulatory EEG test (Continuous monitoring) is also available. Invasive test is done for evaluation of eligible patients for epileptic surgery. Different types of EEG electrodes are given. DYNOGRAPH, analog EEG m/c is discussed with Pre amplifier, Power amplifier and Pen motor. Computerized EEG Machine is discussed about the software filtering of 50Hz. Photic Stimulator, evoked potential, polysomogram are discussed. Analog to Digital Conversion and Micro Controller are mentioned with color figures. Maintenance and Repair of EEG m/c is discussed elaborately. PMMC instrument is explained with figures. Chart paper movement is controlled by motor and electronics circuit. Neuro-feedback, or EEG biofeedback, is a very specific protocol is explained with equipments. Rheoencephalograph, Radio telemetry. EEG only gives lively records of Epilepsy.
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Rkv Murugan
Er. R.K.V. Murugan is having 40 years of experience with Hospital Equipments Scientific Equipments, Analog, Digital and Power Electronics,. He is a postgraduate Engineer with Post diploma in Medical Equipment Technology. He was working at Madras University and with multiple Medical Equipment companies across India and also in Gulf for R&D, Installation, Repair and maintenance.
During 1980 itself got hands on experience with microprocessors and now with microcontrollers. Hands on experience with Arduino also.
He does components level repairing of equipments, so he knows very well about components. and he knows Switched mode power supply design. He designed and modified many number of Equipments. He worked with X-ray Equipment, CT Scan, MRI, Anesthesia equipments in operation theatre and variety of equipments in ICU, NICU, PICU, CCU, Emergency departments. He specialized with Renal dialysis and Laboratory equipments. He is very well versed with modern Technologies.
He is also author of Hospital Medical Equipments made easy Volume 1 thru 10 published by notion press.com. A complete set of these books are available in Anna University Library.
