Biomaterial - Answers 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 - Answers Biocompatibility is the ability of a material to perform with an
appropriate host response in a specific application
Sterilizability - Answers Not destroyed by typical sterilizing techniques such as autoclaving, dry
heat, radiation, ethylene oxide
Physical characteristics - Answers Strength, elasticity, durability
Manufacturability - Answers Machinable, moldable, extrudable
Biomaterial Design Considerations - Answers Biocompatibility
Sterilizability
Physical characteristics
Manufacturability
Innate Immune
System - Answers *Specific Response*
Biocompatibility response is largely innate
• Detection
• Recruitment of Cells (Inflammation)
• Neutralization of the Threat
Adaptive Immune
, System - Answers *Non-Specific Response*
Macrophages: Eat and secrete
Macrophages - Answers *Phagocytosis*
Secretes signals to attract other cells.
Frustrated Phagocytosis - Answers 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 - Answers A specialty within Biomedical engineering responsible primarily
for
applying and implementing medical technology to optimise healthcare delivery
Field engineer - Answers 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 - Answers *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 - Answers ironing out the practicalities of implementing new ways
Research - Answers come up with new/better ways of doing things
Signal - Answers a function that conveys information about the behavior or attributes of some
phenomenon
Electrcardiogram (ECG) - Answers electrical activity of the
heart
Cardio-heart