2015 Fiscal Year Final Research Report
Clinical Application of Improvel Transluminal Retrieval of Vascular Stents: A Experimental Study
| Project/Area Number |
25350563
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Medical systems
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| Research Institution | Kanazawa University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
Yamagishi Masakazu 金沢大学, 医学系, 教授 (70393238)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Keywords | ステント摘出 |
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| Outline of Final Research Achievements |
Vascular stents have become the most common procedure to gain the luminal area and to reduce the rate of restenosis in atherosclerotic arteries. However, in case of instent thrombosis and blood-flow restriction, resulting from inappropriately stent deployment or misplacement, these stents should be retrieved. Under these conditions, we have developed a novel device that could firmly grasp a stent for removal. Because the shaft of first prototype device was still 1.8 mm in diameter, the device could not be advanced into a small and tortuous artery. The aim of this study was to investigate the feasibility of this improved device with porcine coronary arteries. The forceps could catch and remove expanded stents in porcine coronary arteries without vessel damage confirmed by intravascular ultrasound. These results demonstrate that the present device can be feasible and safety for transluminal removal of foreign bodies even in small and tortuous coronary arteries in acute phase.
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| Free Research Field |
循環器内科
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