MEMS-Enabled Ventricular Catheter for Hydrocephalus

用于治疗脑积水的 MEMS 心室导管

• 批准号: 7216203
• 负责人: SELENE A LEE
• 金额: $ 2.92万
• 依托单位: UNIVERSITY OF CALIFORNIA LOS ANGELES
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-03-31 至 2009-03-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7216203
• 关键词: Biological; Catheters; Cerebrospinal fluid shunts procedure; Devices; Electronics; Failure; Frequencies; Goals; Hydrocephalus; In Vitro; Liquid substance; Magnetism; Mechanics; Obstruction; Operative Surgical Procedures; Patients; Power Sources; Process; Rate; System; Technology; Testing; Ventricular; cell type; design; implantable device; implantation; prototype

DESCRIPTION (provided by applicant): One of the most common treatments for patients with hydrocephalus is the surgical implantation of a cerebrospinal-fluid (CSF) shunt. Unfortunately, this device, which is critical for managing hydrocephalus, has a substantial failure rate. The goal of this project is to reduce the frequency of catheter replacement surgeries or to eliminate them all together. I propose to accomplish this by designing a ventricular catheter that will resist occlusion due to cellular accumulation, through the use of micromachining and biological micro-electro-mechanical systems (bioMEMS) technologies. Magnetic microactuators, produced with MEMS technologies, have been operated in biological fluids without the need for a directly wired power supply or control electronics. Such a microactuator technology could be used to mitigate catheter obstruction in a permanently implanted device. The specific aims are: (1) to design, fabricate, and use an in vitro test setup to analyze the obstruction process, (2) to design and implement a magnetic microactuator can be used to resist obstruction, (3) to use the in vitro setup to analyze the obstruction and the obstruction-clearing1 process for the prototype design.

描述（由申请人提供）：脑积水患者最常见的治疗方法之一是手术植入脑脊液（CSF）分流管。不幸的是，这种对治疗脑积水至关重要的设备具有相当大的失败率。该项目的目标是减少导管更换手术的频率或将其全部消除。我建议通过设计一种脑室导管来实现这一目标，该导管将通过使用微机械加工和生物微机电系统（bioMEMS）技术来抵抗由于细胞积累而导致的闭塞。用MEMS技术生产的磁性微致动器已经在生物流体中操作，而不需要直接有线的电源或控制电子器件。这种微致动器技术可用于减轻永久植入装置中的导管阻塞。具体目标是：（1）设计、制造和使用体外测试装置来分析阻塞过程，（2）设计和实现可用于抵抗阻塞的磁性微致动器，（3）使用体外装置来分析阻塞和用于原型设计的阻塞-清除过程。