Magnetic Location System For Catheter Guidance

描述（由申请人提供）：导管定位是推进微创外科手术的关键技术。定位技术在许多导管手术中提供了成像的替代方案，目前应用于包括神经外科、电生理学和其他外科领域在内的几个专业。该项目将开发使能技术，使定位能够应用于微导管和导丝等小型导管，并将允许定位集成到由于添加辅助传感器而空间有限的导管中。此外，该技术能够从导丝头端近端的导丝上的点获得导丝定位信息，从而提醒医生导丝脱垂。在第一阶段，Koronis生物医学技术公司将设计和制造一种新的超微型传感器，用于使用薄膜巨磁阻（GMR）技术进行微导管定位。在第二阶段，将开发和评价原型导管定位系统。公共卫生相关性：薄膜巨磁阻（GMR）传感器可应用于极小的微导管和导丝。这种使能技术为导管手术期间的可视化提供了替代方案，包括神经外科、电生理学和其他外科领域。

DESCRIPTION (provided by applicant): Catheter localization is a key technology for advancing minimally invasive surgical procedures. Localization technology provides an alternative to imaging in many catheter procedures and is presently applied in several specialties including neurosurgery, electrophysiology, and other surgical fields. This project will develop enabling technology that will allow localization to be applied to small catheters such as microcatheters and guidewires, and will allow localization to be integrated into catheters having limited space due to the addition of auxiliary sensors. Additionally, this technology enables guidewire localization information from points on the wire proximal to the wire tip, thus alerting the physician to wire prolapse. In phase I, Koronis Biomedical Technologies will design and fabricate a new ultra-miniature sensor for micro-catheter localization using thin-film Giant MagnetoResistive (GMR) technology. In phase II a prototype catheter localization system will be developed and evaluated. PUBLIC HEALTH RELEVANCE: Thin film Giant MagnetoResistive (GMR) sensors can be applied to extremely small micro- catheters and guidewires. This enabling technology provides an alternative to visualization during catheter procedures including neurosurgery, electrophysiology and other surgical fields.