BMS3646: ASSISTIVE AND MECHANICAL DEVICES
- Subject Code :
BMS3646
- University :
others Exam Question Bank is not sponsored or endorsed by this college or university.
- Country :
United Kingdom
BMS3646: ASSISTIVE AND MECHANICAL DEVICES
Assessment 2. Modelling and Analysis of Biomedical Device
General Description
Undertake and write a report on a mini project to carry out modelling and analysis of a medical device under a system of boundary conditions. This year, you are modelling and analysing the performance of a flow spirometer using different approaches to acquiring air flow rate using computational fluid dynamics. This will be through the use of a range of techniques such as orifice plate or a porous medium. You will therefore need to research the principles of porous media and the underlying theory (e.g. Darcys Law) and its relationship to the Navier-Stokes and / or Bernoullis equations.
General Assessment Criteria
Criterion |
Weight |
|
1 |
Introduction to the problem giving the rationale for and clinical benefits of the analysis, including a description of the device to be analysed and the medical conditions measured or diagnosed by the device. A description of the mathematical and / or engineering basis for the analysis and any relevant standards. |
25% |
2 |
The methods used to build the model including any design criteria, source material and relevant medical device directives or regulations |
30% |
3 |
The results of the analysis including a comparison with any experimental or analytical results, where possible, or an estimation, if not. |
15% |
4 |
A discussion of the results including an evaluation of any limitations arising from assumptions made in the model. Clear conclusions of the outcomes of the analysis and their implications within a clinical environment. |
20% |
5 |
The report is preceded by a succinct but complete abstract. References include high quality peer-reviewed journal articles. Accurate referencing and citation style used. Good use of grammar and style, structure and fluency with confidence. Written with academic integrity. |
10% |
Device Specification
Model and analyse the flow spirometer head that was explored in class which is suitable for use in a clinical environment. Propose a number of different approaches to acquiring air flow rate and undertake Computational Fluid Dynamics using SolidWorks Flow Simulation for this device.
Criteria
The general criteria are listed above, and you must also refer to the rubric published on myLearning for information about expectations, particularly for presentation. Below is some more specific information. This brief is fairly open giving you an opportunity to undertake some independent research and present one or more feasible spirometer pod models that could be used to measure lung function in a clinical environment.
Introduction
You need to provide the specifications for the device including the pressure sensor. This will include any relevant information on the design of such a device to meet the requirements of any relevant medical device directives or regulations to partially meet learning outcome 5. You need to provide background information of the use of such a device and the conditions or situations it is used to diagnose. Discuss the range of different devices that could be used to measure lung function. Also, you need to ensure to describe the underlying theory of flow spirometry, i.e. the principles of fluid mechanics relating to fluid flow.
Materials and Methods
Refer to the rubric to meet learning outcomes 3, 4 and 5:
- Analyse the limitations and benefits of different continuum mechanics systems for modelling mechanical diagnostic or treatment systems.
- Use continuum mechanics methods to analyse the performance of or to design a mechanical diagnostic or treatment device.
- Communicate the outcome of the design process of a mechanical medical device in writing with reference to user needs and medical device directives or regulations.
The CFD in SolidWorks uses Finite-Volume modelling and so it is not FE. What are the essential differences between them? Make sure you cite and reference all material you find on this. This means peer-reviewed sources and no web pages.
Be sure to provide an analytical solution or estimate of the performance of your design for comparison with the CFD model. Describe any experimentation you carried out to simulate the model and be sure to state any simplifications and assumptions you have made for the analysis.
Research and comment on any standards or regulations that relate to this device.
Results
Present the results of the modelling and simulation here and those of any experimentation.
Discussion and Conclusions
This must be evaluative and critique the design of the device you have modelled and the comparison between all models you have made or any others available in literature.
Discuss the reasons for differences between the analytical solution and the simulation with clear reference to the assumptions made and the model limitations.
This also contributes to meeting learning outcomes 3 and 5.
