BM4001 Diagnostic and Therapeutic Equipments Syllabus:

BM4001 Diagnostic and Therapeutic Equipments Syllabus – Anna University PG Syllabus Regulation 2021

COURSE OBJECTIVES:

 To study the measurement of various biopotential and non-electrical parameters.
 To explore the various functional blocks present is cardiac care units and various assist devices
 To develop an understanding of the physiotherapy and diathermy equipment
 To study the electrical safety in the hospital environment

UNIT I BIO POTENTIAL RECORDING

Cell Potential-Half-cell potential, Electrodes-types of electrodes, Signal Conditioning circuits Characteristics of Amplifiers, Differential Amplifiers, Filters, Isolation Amplifier, Design concepts. ECG, EEG, EMG, PCG, EOG, lead system and recording methods, typical waveform, frequency spectrum, abnormal waveforms. Evoked response.

UNIT II MEASUREMENT OF NON ELECTRICAL PARAMETER

Measurements of Respiration Rate, Temperature, Pulse rate, Blood pressure Measurements Direct, Indirect. Blood flow Measurements – In vitro, In vivo, Gas flow measurements. Lung volume measurement – Spirometer.

UNIT III CARDIAC CARE UNITS

Pace makers – different types, batteries for pace makers, Design Concept. DC defibrillators, asynchronous and synchronous types, patient monitoring system, principles of bio telemetry.

UNIT IV ASSIST DEVICES

Heart Lung Machine-Condition to be satisfied by the H/L System. Different types of Oxygenators, Pumps, Pulsatile and Continuous Types, Monitoring Process. Hemodialyser- Indication and Principle of Hemodialysis, Membrane, Dialysate, Different types of hemodialysers, Monitoring Systems, Wearable Artificial Kidney, Implanting Type. Respiratory aids- Types of Ventilators – Pressure, Volume, and Time controlled.

UNIT V DIATHERMY, STIMULATOR AND PATIENT SAFETY

Diathermy-Physiological effects of HF radiation, Depth of Penetration, short wave, Ultrasonic and microwave diathermy, Surgical diathermy, Hazards and safety procedures. Medical Stimulators – Intensity Duration Curve, Current waveforms – Galvanic, Faradic, surged faradic, exponential, biphasic, TENS, Interferential therapy. Electrical Safety-Leakage current, Micro and macro electric shock, GFI units, Earthing Scheme, Electrical safety Analyser

TOTAL: 45 PERIODS

COURSE OUTCOMES:

Upon completion of this course the student will be able to
CO1: Design and analyze the bioamplifiers.
CO2: Measure vital and non-electrical parameters
CO3: Design and demonstrate the pacemaker and defibrillator.
CO4: Demonstrate the function of assist devices.
CO5: Design stimulators and test the electrical safety of medical equipment in the hospital environment.

REFERENCES

1. L.A Geddes and L.E.Baker, Principles of Applied Biomedical Instrumentation, 3rd Edition, John Wiley and Sons, Reprint 2008
2. John G.Webster, Medical Instrumentation Application and Design, 4th Edition, John Wiley and Sons, New York, 2009.
3. Khandpur R.S, Handbook of Biomedical Instrumentation, Tata McGraw Hill, New Delhi, 3rd Edition, 2014.
4. Joseph J. Carr and John M. Brown, Introduction to Biomedical equipment technology, Pearson Education, 4th Edition, 2014.
5. Richard S.Cobbold, Transducers for Biomedical Measurements; Principle and applicationsJohn Wiley and sons, 1992.