Bio-Potential Instrumentation — Summer 2023

Brief about various classification method of medical measurement systems

How medical parameter measurement is different than process parameter measurement?

Draw and explain functional block of generalized medical instrumentation system.

List of the noises that can be introduced when ECG is measured.

Draw a normal ECG waveform with all its parameters.

How action potential is generated in certain cell of living species?

Explain standard ECG lead system. What is Einthoven triangle? How Wilson terminal is formed?

Brief about electro-conduction system of heart.

What is ‘Over potential’? Discuss basic three mechanisms contribute to this phenomenon.

Discuss various layer of skin. Discuss equivalent circuit for electrode-skin interface in detail.

List out different types of body surface electrodes and internal electrodes.

Discuss ‘ Half-cell’ potential of an electrode in detail.

State the differences between polarizable and non-polarizable electrodes. Brief about working of Silver/silver chloride electrode.

What is Sodium - Potassium pump?

Discuss following heart problems:

Myocardial infarction (ii)Tachycardia-Bradycardia (iii) Premature Ventricular contraction (iv) Fibrillation

What is EEG? For what EEG is used? Brief about 10-20 electrode placement system.

Brief about bio-electric signals. List out types of bio-electric signals.

Brief about cell membrane structure.

Explain Right-leg driven circuit in detail.

Draw a single structure of neuron.

What is reflex arc?

Explain microshock hazard and macroshock hazard in detail.1

Brief about susceptible parameters that will determine the effect of current on human body.

Brief about different EEG recording modes.

Discuss the psychophysical and physiological effects that occur in human as the magnitude of applied electric current progressively increases.