Case Studies

Question 1

Heart Valve: Problem, Designs, Failures

Answer 1

Vessels get clogged, can use animal skin or mechanical ball and cage design, failures include regrowth of skin over device.

Question 2

Stents: Problem, Designs, Failures, Solution

Answer 2

blocked arteries, flexible cage tube, restenosis, drug eluting stents

Question 3

Blood Vessel: Requirements, material and strength,

Answer 3

strong and elastic, made from Dacron/PTFE