- Beiträge: 53
- Registriert: 10.11.2018, 11:40
- When you create/produce a medical device you have to perform certain tests. Where can you look up which tests to perform?
-> Biomaterial Compatibility Matrix! Overview what it looks like, things you must take into consideration (e.g. time of application, application method, etc., effects like carcinogenicity...).
What does ISO stand for?
- What should you check in the process of manufacturing before implanting an implant?
-> Sterility. Different methods of sterilization -> two examples, how they work, pros & cons.
Example: Polymer, melting point at 60°C. What method could you use to sterilize? -> Gas: EO (Ethylene oxide). Pros, cons, etc. How can you remove the gas afterwards? Vacuum.
- Three important functions of the packaging of a biomedical device.
- Tensile curve. What are the axes? Different parameters, 0.2% yield etc.
- The tensile curve I drew was typical for a metal (which can deform plastically). Are there materials that cannot deform plastically at all?
-> Ceramics. ...
Why is there no plastic deformation?
-> Metal: Electron gas & metal bonds...
Ceramics: covalent bonds between metal and non-metal and ion bonds...
Do you know any other bonds?
- Biodegradability. Examples for biodegradable polymers & how do they biodegrade?
- Define ceramics, application, disadvantages
- the four states of wound healing , what wound dressings exist and what should they do (explain one specific)
- EO sterilization
- transformation strengthening of zirconia
- in vitro testing of a biomaterial (direct contact, indirect contact and extract test)
- All sterilization methods with a short explanation
- Titanium (advantages, disadvantages), Why is it so biocompatible?
- Classes of medical devices
- Wound healing stages