Support function of self-expanding nitinol stents – Are radial resistive force and crush resistance comparable?
نویسندگان
چکیده
منابع مشابه
Self-expanding nitinol stents in canine vertebral arteries: hemodynamics and tissue response.
PURPOSE To evaluate the hemodynamics and tissue response associated with stent placement in low-flow-velocity arteries. METHODS Six self-expanding nitinol stents (5.5 mm caliber) were implanted transfemorally within the proximal segments of vertebral arteries (2.5 mm diameter) in six adult dogs during anticoagulative protection. RESULTS Control angiograms demonstrated patency and 20% dilata...
متن کاملUse of self-expanding nitinol stents in the pediatric management of refractory esophageal caustic stenosis.
BACKGROUND The treatment of recurrent esophageal stricture secondary to the ingestion of a caustic agent is an arduous task. Self-expanding esophageal stents may be an alternative to repeated endoscopic esophageal dilations. CASE REPORT We present the case of a two-year-old male with a severe and long esophageal stricture successfully treated by the combination of dilations and stent placemen...
متن کاملIn situ cooling with ice water for the easier removal of self-expanding nitinol stents
BACKGROUND It is yet to be determined what effects temperature has on the properties of nitinol in order to simplify the process of removing nitinol self-expanding metal stents (SEMS). MATERIALS AND METHODS We describe the procedure for removal of SEMS in a total of 11 cases with 9 patients. A study involving cooling of nitinol stents in situ with ice water just before their removal was attem...
متن کاملEndovascular Treatment for Infra-inguinal Autologous Saphenous Vein Graft Occlusion Using Self Expanding Nitinol Stents
INTRODUCTION For patients with infra-inguinal autologous vein bypass graft occlusion, conventional open surgical repair or endovascular treatment (EVT) for native vessel occlusion have generally been performed. REPORT A 73 year old female with non-healing ulcer and gangrene of the left lower leg was diagnosed as having infra-inguinal autologous saphenous vein graft occlusion. In this case, su...
متن کاملChemical etching of nitinol stents.
At present the main cause of death originates from cardiovascular diseases. Primarily the most frequent cause is vessel closing thus resulting in tissue damage. The stent can help to avoid this. It expands the narrowed vessel section and allows free blood flow. The good surface quality of stents is important. It also must have adequate mechanical characteristics or else it can be damaged which ...
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ژورنال
عنوان ژورنال: Current Directions in Biomedical Engineering
سال: 2019
ISSN: 2364-5504
DOI: 10.1515/cdbme-2019-0117