Development of Artery Repairing Material using Shape Memory Alloy for Cerebral Aneurysm

(1)脑动脉瘤形状记忆合金动脉修复材料的研制本文报道了脑动脉瘤治疗的新技术。经血管内入路治疗动脉瘤内血栓形成的新技术已被设想并尝试进行实验。我们将报告其基础材料的基本特性，修复材料使用TiNi形状记忆合金，修复材料除不锈钢外输送导丝，微导管，形状恢复装置。形状记忆合金是柔软的，可以适应脑动脉瘤的大小和形状。该技术由一种正固定的血管内形状记忆合金制造血管内血栓组成。经过形状记忆处理，用DSC法得到曲线。一种新开发的微导管，环形电极由白金丝制成，电极与高频电流发生器连接。在使用该修复材料的实验中，我们观察到了更多的结果。可以在动脉瘤模型内进行血管内导航和微导管定位。(2)形状记忆合金血管修复盖的研制本文报道了以下用形状记忆合金修复脑动脉瘤的材料。本课题研制的是一种基于TiNi形状记忆合金的血管修复罩及其形状恢复器。在血管手术之前，在编织机上将几乎与血管直径相当的形状记忆合金丝塞在经纱周围。所述血管修复盖应用于出血区域附近并操作使其受热，修复盖完成形状记忆后，将所述血管包裹在所述盖中。采用颈动脉犬进行动物实验，评价血管修复盖的发育情况。实现了船舶修理盖，验证了新方法的有效性。少

(1)Development of Artery Repairing Material using Shape Memory Alloy for Cerebral AneurysmThis reports studies the new technique for treatment of cerebral aneurysm. The new technique of intra-aneurysmal thrombosis via an endovascular approach has been conceived in attempt to experimentation. We will report the results for the basic characteristics of material on which it based, repairing material using TiNi shape memory alloy, repairing material apart from stainless steel delivery guidewire, a microcatheter, and shape recovery device. The shape memory alloy is soft and will adapt to the size and shape of the cerebral aneurysm. This technique consists of the production of an endovascular thrombus by a positively fixed endovascular shape memory alloy. After shape memorization process we get by DSC the curves. A newly developed microcatheter, the ring shaped electrodes are made from whitegold wire which connect the electrodes to the high frequency electrical current generator. The results … More observed in our experimental work using the repairing material. The intra-vascular navigation and the positioning of a microcatheter within the aneurysm model can be fixed performed.(2)Development of a Vessel Repairing Cover using Shape Memory AlloyThis reports studies the following repairing matrial using shape memory alloy for cerebral aneurysm. Our resarch is developing is a vessel repairing cover which use a TiNi shape memory alloy, and the shape recovery applicator. In advance of the vessel surgery, shape memory alloy wire which has been memorised to almost the diameter of the vessel is spread is tucked around the warp on a weaving machine. The vessel repairing cover is applied near the bleeding region and operated causing the heated, after the repairing cover is shape memory the vessel is wrapped up in the cover. Animal experiment is performed to evaluate the developed vessel repairing cover by using a dog of carotid arteries. The vessel repairing cover was realized and effectiveness of new approach was confirmed. Less