This is an advanced level module that covers the Physics principles underpinning the various Physiological Measurement disciplines.
Principles of fluid flow, continuity equation, Bernoulli equation, Poiseuilles law, applications of these principles to fluid flow in the body. Incorporation of these principles into physiological measurement instruments for both blood and air flow measurements.
Invasive blood pressure measurement devices. Pressure transducers, Catheter types.
Pitot tube and spirometer sensors, principle of operation, advantages/disadvantages of the various sensor types. Principles of operation of the various a range of flow measurement devices. Principle of operation of defibrillators, modes of operation, energy delivery.
Electrodes, types, properties, principles of operation, Electrical impedance, and its role the signal measurement.
Principles of operation of pacemaker and Holter recording devices, including limitations of such devices.
Defibrillators (internal and external).
Calibration of measurement devices, items which cause measurement devices to drift off calibration.
Signal amplification, band, notch, high and low pass filters, as applied to measurement of physiological signals.
Oral drug delivery systems for asthma and diabetes, physics principle involved EEG networked systems with integrated digital video. •
Multimodality Evoked potential systems, (signal averaging capabilities) and EMG/NCS equipment, electrical stimulators, etc.
Measurement of airflow using a range of types of flow sensor. (5 hours) Signal processing of physiological signals, investigating the impedance characteristics of the measurement devices. (5 hours)
Nature of Bioelectrical and Sources of Bioelectric Signals (overview of bioelectrical impulse generation in human body). Discrete-Time Systems: Introduction to analogue and digital signals, continuous and discrete-time signal representations Fourier Transform:
Definition, and applications. Electrical Safety Review of effects of electrical fields on the human body, current path, frequency, magnitude dependence.
Analysis of the hazard from electrical fields in the hospital environment. Measures used to limit the impact of each source of risk. Standards. Assessment of electrical safety of electrical devices in hospitals (measurement of leakage currents etc.). Electrical Safety of Installations.
Lectures and self directed study
| Module Content & Assessment | |
|---|---|
| Assessment Breakdown | % |
| Formal Examination | 70 |
| Other Assessment(s) | 30 |