1)(i) prepare down the difference between internal and external pacemaker.

(ii) prepare short note on Double square pulse defibrillator.

2) Why do we need Heart-lung machine? Design a block diagram of it and describe it’s working.

3) Design the block diagram of synchronized D.C. defibrillator and describe it’s working.

4) prepare down the various types of waveforms used for stimulation of Muscle and nerves? Design the block diagram of typical Electrotherapeutic stimulator and describe.

5) prepare brief notes on:

i) Short wave diathermy

ii) Microwave diathermy.

6) Describe various types of defibrillators with a neat sketch.

7) Describe the process of dialysis with suitable diagrams. How does this technique play a useful role in medical field? prepare down a few exs and prepare down the limitations of this technique.

8) Design a circuit diagram of a Peripheral nerve stimulator and describe it and also describe the various types of stimulator wave forms.

9)i) Describe the principle of working of Ventilators.

ii) Describe about audiometers in bio-medical instrumentation.