Development research of a single arm electrical detachable intracranial stent

• Project/Area Number: 26462157
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Neurosurgery
• Research Institution: Mie University
• Principal Investigator: SAKAIDA HIROSHI 三重大学, 医学系研究科, 教授 (40273362)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2014: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 脳動脈瘤 / 頭蓋内ステント / ステント / 血管内治療

Outline of Final Research Achievements

The connecting system using Poly-vinyl alcohol (PVA) showed good stability in a single arm electrical detachable stent. The conformability of proximal end of stent, however, was poor, especially in the curved vessel. The previous experiment demonstrated that separate connection of each strut by PVA was not suitable for uniform detachment of stent. New concept of connection method is essential to develop electrical detachable stent for cerebral aneurysm.