05-05-2012, 05:23 PM
BIOMEDICAL INSTRUMENTATION
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RATIONALE
Recent advances in medical field have been fuelled by the instruments developed by the
Electronics and Instrumentation Engineers. Pacemakers, Ultrasound Machine CAT,
Medical diagnostic systems are few names which have been contributed by engineers.
Now health care industry uses many instruments which are to be looked after by
instrumentation engineers. This subject will enable the students to learn the basic
principles of different instruments/equipment used in the health care industry. The
practical work done in this area will impart skill in the use, servicing and maintenance of
these instruments/equipment. Proficiency in this area will widen the knowledge and skill
of diploma holders in the field of biomedical instrumentation.
DETAILED CONTENTS
1. Anatomy and Physiology (10 hrs)
Elementary ideas of cell structure, heart and circulatory system, control nervous
system, Musclo-skeletal system, Respiratory system Body temperature and
reproduction system.
2. Classification of Biomedical Equipment (2 hrs)
Diagnostic, therapeutic and clinical laboratory equipment
3. Bioelectric signals and their recording (14 hrs)
Bioelectric signals (ECG, EMG, ECG, EOG & ERG) and their characteristics, Bioelectrodes,
electrodes tissue interface, contact impedance, effects of high contact
impedance, types of electrodes, electrodes for ECG, EEG and EMG.
4. Transducers for Biomedical Application (12 hrs)
Resistive transducers - Muscle force and Stress (Strain guge), Spirometry (Potentiont)
, humidity, (Gamstrers), Respiration (Thermistor)
Inductive Transducers - Flow measurements, muscle movement (LVDT)
Capacitive Transducers - Heart sound measurement, Pulse pick up
Photoelectric Transducers - Pulse transducers, Blood pressure, oxygen Analyses
Piezoelectric Transducers - Pulse pickup, ultrasonic blood flowmeter
Chemcial Transducer - Ag-Agfallas (Electrodes, PH electrode
5. Bioldectric Signal recording machines (8 hrs)
Physiological pre-amplifier and specialized amplifiers, ECG lead systems details of
ECG, EMG, and EEG machines
6. Patient Monitoring system (6 hrs)
Heart rate measurement pulse rate measurement, respiration, rate measurement,
blood pressure measurement, microprocessor applications in patient monitoring
7. X- Ray Machine (6 hrs)
Basic X-Ray components and circuits, types of X-ray machines e.g. general purpose,
dental image intensifier system, table shooting and maintenance of X- Ray machine
8. Safety Aspect of Medical …… (4 hrs)
Gross current, Micro Current shock, safety standards rays and considerations, safety
testing instruments, biological effects of X-rays and precautions
LIST OF PRACTICALS
1. Minimum of eight exercises to be carried out and one field visit
2. Operation and function of all the controls of hospital X-Ray machine (visit at
hospital)
3. Operation and function of all the controls of dental X-Ray machine (Visit to
Hospital)
4. Identification of different block/sub system of circuits in X-Ray machine
5. Measurement of skin contact impedance and technique to reduce it.
6. Observe its wave shape on CRO the output of blood pressure transducers body
temperature transducers and pulse sensors
7. Use of sphygrmanometer for measurement of blood pressure
8. Concept of ECG system and placement of electrodes
9. Measurement of leakage currents with the help of safety tester
10. PH measurement of given biological sample
11. Concept of EMG system and placement of electrode
12. Measurement of respiration rate using thermistor
13. Concept of EEG system and placement of electrode
14. Identification of different types of PH electrode
RECOMMENDED BOOKS
1. Medical Instrumentation by John. G. Webster –John Wiley
2. Principles of Applied Biomedical Instrumentation by Goddes & Baker – John
Wiley
3. Biomedical Instrumentation & Measurement by Carr & Brown-Pearson
4. Biomedical Instrument by Cromwell-Prentice Hall of India, New Delhi
5. Hand book of Medical instruments by R.S. Khandpur –TMH, New Delhi
6. Medical Electronics and Instrumentation by Sanjay Guha – University Publication
7. Introduction to Biomedical electronics by Edwand J. Bukstein –sane and Co. Inc.
USA