Stent retrievers are medical devices that are designed to physically remove blood clots from within the blood vessels of the brain. This paper focuses on microfabricated nitinol (nickel-titanium alloy) stent retrievers, which feature micro-patterns on their surface to enhance the effectiveness of mechanical thrombectomy. A thick film of nitinol, which was 20 µm in thickness, was sputtered onto a substrate with a micro-patterned surface, using electroplated copper as the sacrificial layer. The nitinol film was released from the substrate and then thermally treated while folded into a cylindrical shape. In vitro experiments with pig blood clots demonstrated that the micro-patterns on the surface improved the efficacy of blood clot retrieval.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10893500 | PMC |
| http://dx.doi.org/10.3390/mi15020213 | DOI Listing |
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Outcomes and Complications Associated with Mechanical Thrombectomy in the Treatment of Acute Ischemic Stroke.
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