MProbe 40 MSP system offers a reliable, non-destructive measurement solution for quality control of the coatings on stents or polymer films stretched on stents.        There are several types of stents used for different medical conditions: vascular, peripheral arthery (e.g. carotoid), stents for clot extraction, restriction of the blood flow in cases of aneurism or cancer and several others.

One class of vascular  stent is drug-eluting stents (DES)  that are designed to minimize in-stent restenosis that was a main disadvantage of bare-metal stents. DES consists of a standard metallic stent, a polymer coating, and an antiproliferative drug that is embedded within a polymer and released over time. Thick coating can result in de-lamination; make it too thin and there may be not enough protection and drug release time.  Quality control of coating thickness and uniformity is one of the critical tasks during DES manufacturing.

Stents used for clot extraction and blood flow restriction are covered with polymer film:polyurethane,PTFE or similar polymer materials. Stent encapsulation is also used in vascular application to deploy the stent. The polymer film is stretched under pressure and it is important to test its thickness to guarantee structural integrity.