28 May 2022

Precision manufacturing for plastic medical components

Plastic is commonly used for stents due to its biocompatibility, visibility during x-rays, mechanical properties for expansion, and if necessary, degradation in resorbable stents.

Stents are tiny tubes with a lattice structure that are implanted into blood vessels to relieve or prevent vascular constructions. Size and thickness are critical parameters for stents in order to achieve the required flexibility and strength.

These intricate devices require precision manufacturing techniques, so in most cases lasers are used to cut stents to an accuracy of a few µm. New developments such as ultra-short pulse lasers with pulse durations in the picosecond or femtosecond range have opened new possibilities in the manufacture of medical components, allowing not just more precise, but also more economical production. In laser cutting, for example, cuts and holes at least 2µm in size can be made at an accuracy in the µm range. The laser produces clean and almost perfect cutting edges. It also offers a high degree of flexibility when cutting different shapes and bodies. In addition to stents, other typical components include components for minimally invasive surgery, stone trapping baskets, bone saws, orthopaedic devices, and numerous implants.

Company info: Laser Components