公开(公告)号：US08316861B2

公开(公告)日：2012-11-27

申请号：US12603387

申请日：2009-10-21

申请人： Reuben Brewer ,  J. Kenneth Salisbury, Jr. ,  Kevin E. Loewke ,  David B Camarillo

发明人： Reuben Brewer ,  J. Kenneth Salisbury, Jr. ,  Kevin E. Loewke ,  David B Camarillo

IPC分类号： A61B19/00 ,  A61B1/04 ,  A61B1/00 ,  A61B5/05

CPC分类号： A61B1/05 ,  A61B1/00158 ,  A61B34/73 ,  A61M25/0127

摘要： A magnetic force control system for guiding a medical instrument within a body includes: a controlled magnet coupled to the medical instrument; a controller magnet that exerts a magnetic force on the controlled magnet; a magnetically permeable shield, placed between the controlled magnet and the controller magnet, that selectively modulates the magnetic force by rerouting magnetic field lines; and a control system. A method for guiding a medical instrument within a body with magnetic force control includes: providing a controlled magnet coupled to the medical instrument, inserting the controlled magnet and medical instrument into the body, providing a controller magnet outside the body, placing a magnetically permeable shield between the controlled magnet and the controller magnet, applying magnetic force, and selectively modulating the magnetic force with the shield to vary at least one of amplitude and orientation of the magnetic force, thereby guiding the controlled magnet within the body.

摘要翻译： 用于引导身体内的医疗器械的磁力控制系统包括：联接到医疗器械的受控磁体; 在受控磁体上施加磁力的控制器磁体; 放置在受控磁体和控制器磁体之间的磁导屏蔽，通过重新路由磁场线来选择性地调制磁力; 和控制系统。 一种利用磁力控制在身体内引导医疗器具的方法包括：提供耦合到医疗器械的受控磁体，将受控磁体和医疗器械插入体内，在身体外部提供控制器磁体，放置导磁屏蔽 在受控磁体和控制器磁体之间，施加磁力，并且用屏蔽件选择性地调制磁力以改变磁力的振幅和取向中的至少一个，从而将受控磁体引导到主体内。