BIOACTIVE-ABSORBABLE COIL FOR BRAIN ANEURYSM THERAPY

用于脑动脉瘤治疗的生物活性可吸收弹簧圈

• 批准号: 6543272
• 负责人: FERNANDO VINUELA
• 金额: $ 51.48万
• 依托单位: UNIVERSITY OF CALIFORNIA LOS ANGELES
• 依托单位国家: 美国
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-10 至 2005-06-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6543272
• 关键词: biodegradable product; bioimaging /biomedical imaging; biomaterial development /preparation; biomaterial evaluation; biomaterial interface interaction; blood coagulation; blood vessel prosthesis; cerebral aneurysm; disease /disorder model; histology; medical implant science; nonhuman therapy evaluation; polymers; swine; therapeutic blood vessel occlusion; thromboembolism

DESCRIPTION (provided by applicant): Guglielmi detachable coils (GDCs) are the gold standard for endovascular treatment of brain aneurysms. However, GDCs appear to be less effective in wide-necked aneurysms (> 4mm). We propose to develop a new, bio-active, bio-absorbable polymeric material (BPM) coil that improves aneurysm healing by accelerating clot maturation and organization within the aneurysm. We hypothesize that aneurysm healing can be controlled by using BPMs. LONG-TERM OBJECTIVE: To improve clinical management of brain aneurysms by overcoming the present limitations of GDC system. The knowledge of the bio-molecular cascade eliciting aneurysm healing will allow its manipulation and development of better embolic agents. IMMEDIATE OBJECTIVE: 1) Bio-molecular and histological evaluations of natural thrombus formation in surgically created aneurysm. Special attention will be paid on cytokine expression related to clot maturation. 2) In-vitro evaluation of physical, chemical and degradation properties of commercially available Polymers for potential application in brain aneurysm therapy. 3) Utilization of a lateral aneurysm model in swine to evaluate anatomical and histological effects of different bioabsorption properties of commercially available Polymers and their impact in aneurysm healing. 4) Transform current GDC technology to bioactive surface GDC (Hybrid BPM/GDC) and evaluation of angiographic and histological effectiveness of a Hybrid BPWGDC coil. 5) Development of a 100 percent bio-absorbablehio-active intravascular coil for endovascular embolization of intracranial aneurysms

描述（由申请人提供）：Guglielmi可拆卸线圈（gdc）是脑动脉瘤血管内治疗的金标准。然而，gdc在宽颈动脉瘤（bb0 - 4mm）中效果较差。我们建议开发一种新的、生物活性的、生物可吸收的聚合物材料（BPM）线圈，通过加速动脉瘤内凝块的成熟和组织来改善动脉瘤愈合。我们假设动脉瘤的愈合可以通过bpm来控制。