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    Method and apparatus for magnetically controlling catheters in body lumens and cavities
    4.
    发明申请
    Method and apparatus for magnetically controlling catheters in body lumens and cavities 审中-公开
    用于磁体控制体腔和腔内导管的方法和装置

    公开(公告)号：US20070287909A1

    公开(公告)日：2007-12-13

    申请号：US11732624

    申请日：2007-04-04

    申请人： Jeffrey Garibaldi ,  Rogers Ritter ,  Gerard Epplin ,  Walter Blume

    发明人： Jeffrey Garibaldi ,  Rogers Ritter ,  Gerard Epplin ,  Walter Blume

    IPC分类号： A61B5/05

    CPC分类号： A61B6/12 ,  A61B1/00158 ,  A61B5/06 ,  A61B5/062 ,  A61B17/12022 ,  A61B17/12113 ,  A61B17/1214 ,  A61B2017/003 ,  A61B2017/00876 ,  A61B2017/1205 ,  A61L24/001 ,  A61L24/02 ,  A61L31/022 ,  A61M25/0127 ,  A61N2/02

    摘要： A method of navigating a magnet-tipped distal end of an elongate medical device through the body includes providing an image display of the part of the body through which the medical device is being navigated and using the display to input the desired path of the medical device by identifying points on the desired path on the display. The magnetic field needed to orient the end of the medical device in the direction of the desired path as indicated on the display is then determined. In one embodiment where only points on the desired path are identified, the field direction is the direction indicated by the points on the desired path. In a second embodiment, where points on the current path and the desired path are identified, the desired angle of deflection is determined, and the direction of the magnetic field is set to lead this desired angle of deflection by 90° to over-torque the end of the catheter, and the intensity of the field is determined from a table of experimentally determined field intensities for given angles of deflection. The apparatus for navigating a magnet-tipped medical device through the body in accordance with the invention includes a magnet system for applying a magnetic field to the magnet-tipped distal end of the medical device to orient the distal end of the medical device; a computer for controlling the magnet system to generate a specified magnetic field in the body part; first and second imaging devices connected to the computer, for providing bi-planar images of the body part through which the medical device is being navigated; first and second displays for displaying the images from the image devices; and an input device for inputting points identifying the desired path of the medical device on each of the displays. The computer is programmed to determine the magnetic field necessary to control orient the medical device on the path input on the displays.

    摘要翻译： 通过身体导航细长医疗装置的磁铁尖端的远端的方法包括：提供身体部分的图像显示，医疗装置通过该部分导航，并使用显示器输入医疗装置的期望路径 通过识别显示器上所需路径上的点。 然后确定在显示器上指示的朝向期望路径的方向定向医疗装置的端部所需的磁场。 在仅识别期望路径上的点的一个实施例中，场方向是由期望路径上的点指示的方向。 在第二实施例中，在电流路径和期望路径上的点被识别时，确定期望的偏转角，并且将磁场的方向设定为将该期望的偏转角度引导90°以过度扭矩 导管的端部，并且从给定的偏转角度的实验确定的场强度的表确定场的强度。 根据本发明的用于通过身体导航磁头医疗装置的装置包括：磁体系统，用于将磁场施加到医疗装置的磁头顶端，以定向医疗装置的远端; 用于控制磁体系统以在身体部分中产生指定磁场的计算机; 连接到计算机的第一和第二成像装置，用于提供身体部位的双平面图像，医疗装置通过该平面图像进行导航; 用于显示来自图像装置的图像的第一和第二显示器; 以及输入装置，用于输入识别每个显示器上的医疗装置的期望路径的点。 计算机被编程以确定在显示器上的路径输入上控制医疗装置的定向所必需的磁场。

    Method of and apparatus for navigating medical devices in body lumens
    6.
    发明申请
    Method of and apparatus for navigating medical devices in body lumens 审中-公开
    身体内腔医疗器械导航的方法及装置

    公开(公告)号：US20070021731A1

    公开(公告)日：2007-01-25

    申请号：US11475840

    申请日：2006-06-27

    申请人： Jeffrey Garibaldi ,  Walter Blume

    发明人： Jeffrey Garibaldi ,  Walter Blume

    IPC分类号： A61M31/00 ,  A61M5/178 ,  A61M25/00

    CPC分类号： A61M25/0127 ,  A61M25/09 ,  A61M2025/09075 ,  A61M2025/09083

    摘要： A guide wire combined with a catheter or medical device for moving through a body lumen to a desired position in the body with the aid of an applied magnetic field. The guide wire is provided with a magnet on its distal end that can be oriented or oriented and moved by the application of a magnetic field to the magnet. A catheter or other medical device can be advanced over the guide wire. Once the medical device is in its desired position, the magnet can be withdrawn through the lumen of the catheter. Alternatively, a guide wire with a magnet on its distal end can be docked at the distal end of a catheter or medical device and can be oriented, or oriented and moved by the application of a magnetic field.

    摘要翻译： 导丝与导管或医疗装置组合，用于借助于施加的磁场将体腔移动到身体中的期望位置。 引导线在其远端设置有可以通过向磁体施加磁场而定向或定向和移动的磁体。 导管或其他医疗装置可以在导丝上前进。 一旦医疗装置处于其期望的位置，磁体可以通过导管的内腔抽出。 或者，在其远端具有磁体的导丝线可以对接在导管或医疗装置的远端，并且可以通过施加磁场而定向或定向和移动。