This website uses cookies to help us give you the best experience when you visit. By using this website you consent to our use of these cookies. Find out more about how we use cookies and how to manage them please read our Privacy Policy.

Stent Delivery Systems

In the event of restricted blood flow in an artery, it is fairly common practice to fit stents. Stents are comprised of a wire mesh that collapses to a very small diameter when initially inserted. It can then be opened and expanded when the restricted artery area is located, resulting in a widened artery and improved blood flow.

The surgeon expands the stent via a handheld mechanical trigger that works by rotating a wheel or twisting the device. It is the mechanical trigger where Delrin® SC is used. The device relies on interacting sliding surfaces and therefore needs the superior low wear and friction properties of Delrin® SC. Due to the designs needing precise control and accuracy, it is crucially important the surfaces do not stick or judder - grades such as Delrin® SC698 help to prevent this.

Delrin® SC is a medically approved portfolio of homopolymer acetal. Compared to acetal copolymer, Delrin® acetal homopolymer offers higher tensile strength, stiffness, creep and fatigue resistance, and significantly higher impact resistance. The extra mechanical properties of Delrin® allow for parts to be made thinner and smaller, whilst delivering the same performance of a thicker, less compact copolymer acetal moulding.

Spotlight on Delrin® SC:

  • Low wear and friction
  • Super low friction grades
  • High modulus and rigidity
  • Medically approved

Invented by DuPont™, delivered by Distrupol.

Back to Polymers in action

DUPONT Stent Delivery Systems
DELRIN View full product page