BMEN 1208 Final Questions and Correct
Answers/ Latest Update / Already Graded
Biomaterial
Ans: a *nonviable material* used in a medical device, intended
to *interact with biological systems*.
used to make devices to *replace/repair a function* of the body
in a safe,
reliable, economic, and physiologically acceptable manner.
any substance (other than a drug), natural or synthetic, that
treats, augments, or replaces any tissue, organ, and body
function.
Biocompatibility
Ans: Biocompatibility is the ability of a material to perform
with an appropriate host response in a specific application
Sterilizability
Ans: Not destroyed by typical sterilizing techniques such as
autoclaving, dry heat, radiation, ethylene oxide
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Physical characteristics
Ans: Strength, elasticity, durability
Manufacturability
Ans: Machinable, moldable, extrudable
Biomaterial Design Considerations
Ans: Biocompatibility
Sterilizability
Physical characteristics
Manufacturability
Innate Immune
System
Ans: *Specific Response*
Biocompatibility response is largely innate
• Detection
• Recruitment of Cells (Inflammation)
• Neutralization of the Threat
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Adaptive Immune
System
Ans: *Non-Specific Response*
Macrophages: Eat and secrete
Macrophages
Ans: *Phagocytosis*
Secretes signals to attract other cells.
Frustrated Phagocytosis
Ans: Macrophages try to eat something as big as most
implants, they *get frustrated*
and eventually *wall off* the implant inside a fibrous structure
Clinical Engineering
Ans: A specialty within Biomedical engineering responsible
primarily for
applying and implementing medical technology to optimise
healthcare delivery
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Field engineer
Ans: Field means employee is spending time at the point of
use. Often used for devices that require extensive
*calibration/initial setup/careful
sizing selection*
Operations
Ans: *Manufacturing* - physically producing the device
*Packaging* - ensuring that device will get to point of use in
appropriate state
*Sterilization* - making devices safe/clean to use
Development
Ans: ironing out the practicalities of implementing new ways
Research
Ans: come up with new/better ways of doing things
Signal
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