Exam Flashcards
(17 cards)
What are two required parameters of biomaterials used in the clinic?
Tissue compatibility (biocompatibility) and mechanical performance appropriate to their function
These parameters are essential for ensuring that biomaterials perform effectively in medical applications.
What are standards?
Formal guidelines set by organizations (e.g., ISO, ASTM) that define specifications and test methods to ensure biomaterials are safe, effective, and consistent
Standards play a crucial role in the regulation of biomaterials.
How are standards used in producing and evaluating biomaterials?
They guide material selection, fabrication, testing, regulatory approval, and performance evaluation of biomaterials and medical devices
This ensures that products meet safety and efficacy requirements.
What is a first-generation biomaterial device?
A device designed to be biologically inert, focusing on mechanical function with minimal interaction with the body (e.g., stainless steel implants)
These devices prioritize stability and durability over biological integration.
What is a second-generation biomaterial device?
A device designed to be bioactive or biodegradable, interacting beneficially with tissue (e.g., hydroxyapatite-coated implants, resorbable sutures)
These devices aim to enhance healing and promote integration with the body.
What are six general applications of biomaterials in medicine?
- Orthopedic implants
- Dental restorations
- Cardiovascular stents
- Tissue engineering scaffolds
- Drug delivery systems
- Wound dressings
Each application serves a specific role in patient care and treatment.
How is Dacron classified?
Synthetic polymer
Commonly used in vascular grafts and other medical applications.
How is poly(methyl methacrylate) classified?
Synthetic polymer
Often used in bone cement and intraocular lenses.
How is polyurethane classified?
Synthetic polymer
Utilized in various medical devices due to its flexibility and durability.
How is poly-L-lactide classified?
Synthetic biodegradable polymer
Frequently used in sutures and drug delivery systems.
How is silicone rubber classified?
Synthetic polymer
Known for its biocompatibility and used in implants and prosthetics.
How is collagen classified?
Naturally derived polymer
Major component of connective tissues, often used in tissue engineering.
How is hyaluronic acid classified?
Naturally derived polymer
Commonly used in dermal fillers and joint lubrication.
How is chitosan classified?
Derivative of naturally derived polymer
Derived from chitin, used in wound dressings and drug delivery.
How is heparin classified?
Naturally derived polymer
Anticoagulant used in various medical applications.
How is polystyrene classified?
Synthetic polymer
Used in various laboratory applications and devices.
How is fibrin classified?
Naturally derived polymer
Plays a critical role in blood clotting and tissue repair.
