Magnetic medical devices with changeable magnetic moments and method of navigating magnetic medical devices with changeable magnetic moments
    2.
    发明申请
    Magnetic medical devices with changeable magnetic moments and method of navigating magnetic medical devices with changeable magnetic moments 失效
    具有可变磁矩的磁性医疗设备和导航具有可变磁矩的磁性医疗设备的方法

    公开(公告)号:US20050054912A1

    公开(公告)日:2005-03-10

    申请号:US10935755

    申请日:2004-09-07

    摘要: A method of navigating a medical device having a changeable magnetic moment within an operating region within a patient, the method includes applying a navigating magnetic field to the operating region with an external source magnet, and changing the direction of the magnetic moment in the medical device to change the orientation of the medical device in a selected direction within the operating region. The magnet moment of the medical device can be created by one or more electromagnet coils, in which case the magnetic moment can be changed by changing the current to the coil. Alternatively, the magnetic moment of the medical device can be created by one or more permanent magnets, in which case the magnetic moment can be changed by mechanically or magnetically manipulating the permanent magnet.

    摘要翻译: 一种在患者体内的操作区域内导航具有可变磁矩的医疗装置的方法,所述方法包括:利用外部源磁体对操作区域施加导航磁场,并改变医疗装置中的磁矩方向 以在操作区域内沿所选择的方向改变医疗装置的方向。 医疗装置的磁矩可以由一个或多个电磁线圈产生,在这种情况下,可以通过改变线圈的电流来改变磁矩。 或者,医疗装置的磁矩可以由一个或多个永磁体产生,在这种情况下,可以通过机械或磁力操纵永久磁铁来改变磁矩。

    Magnetic medical devices with changeable magnetic moments and method of navigating magnetic medical devices with changeable magnetic moments
    3.
    发明申请
    Magnetic medical devices with changeable magnetic moments and method of navigating magnetic medical devices with changeable magnetic moments 失效
    具有可变磁矩的磁性医疗设备和导航具有可变磁矩的磁性医疗设备的方法

    公开(公告)号:US20070088197A1

    公开(公告)日:2007-04-19

    申请号:US11389547

    申请日:2006-03-24

    摘要: A method of navigating a medical device having a changeable magnetic moment within an operating region within a patient, the method includes applying a navigating magnetic field to the operating region with an external source magnet, and changing the direction of the magnetic moment in the medical device to change the orientation of the medical device in a selected direction within the operating region. The magnet moment of the medical device can be created by one or more electromagnet coils, in which case the magnetic moment can be changed by changing the current to the coil. Alternatively, the magnetic moment of the medical device can be created by one or more permanent magnets, in which case the magnetic moment can be changed by mechanically or magnetically manipulating the permanent magnet.

    摘要翻译: 一种在患者体内的操作区域内导航具有可变磁矩的医疗装置的方法,所述方法包括:利用外部源磁体对操作区域施加导航磁场,并改变医疗装置中的磁矩方向 以在操作区域内沿所选择的方向改变医疗装置的方向。 医疗装置的磁矩可以由一个或多个电磁线圈产生,在这种情况下,可以通过改变线圈的电流来改变磁矩。 或者,医疗装置的磁矩可以由一个或多个永磁体产生,在这种情况下,可以通过机械或磁力操纵永久磁铁来改变磁矩。

    Method and apparatus for magnetically controlling catheters in body lumens and cavities
    7.
    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

    IPC分类号: A61B5/05

    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。

    Voice controlled user interface for remote navigation systems
    8.
    发明申请
    Voice controlled user interface for remote navigation systems 失效
    用于远程导航系统的语音控制用户界面

    公开(公告)号:US20060281989A1

    公开(公告)日:2006-12-14

    申请号:US11429667

    申请日:2006-05-05

    IPC分类号: A61B5/05

    摘要: A method of controlling a remote navigation system that remotely orients the distal end of the medical device in order to navigate a medical device through a body lumen, the method comprising: displaying an exterior image of the body lumen; superimposing an indicator of the current position of the medical device in the body lumen; displaying a plurality of segment labels; receiving oral commands and recognizing one of the spoken displayed segment labels; and causing the remote navigation system to orient the distal end of the device in a preselected direction associated with the segment corresponding to the displayed segment label.

    摘要翻译: 一种控制远程导航系统的方法,所述远程导航系统远程地定向所述医疗装置的远端,以便通过体腔导航医疗装置,所述方法包括:显示所述体腔的外部图像; 将医疗装置的当前位置的指示器叠加在体腔中; 显示多个段标签; 接收口头命令并识别其中一个口头显示的段标签; 并且使所述远程导航系统将所述设备的远端定向在与所显示的段标签相对应的段相关联的预选方向上。

    Magnetically navigable and/or controllable device for removing material from body lumens and cavities

    公开(公告)号:US06740103B2

    公开(公告)日:2004-05-25

    申请号:US10212458

    申请日:2002-08-05

    IPC分类号: A61B1732

    摘要: A magnetically navigable atherectomy device includes a cutting head, a flexible drive shaft having a proximal and a distal end, with the cutting device on the distal end, and a magnet associated with the cutting head, the magnet of sufficient size to allow the cutting head to be oriented by an externally applied magnetic field. The magnet may be a portion of the cutting head made from a magnetically permeable or permanent magnetic material, a portion of the drive shaft made from a magnetically permeable or permanent magnetic material; a separate magnet between the cutting head and the drive shaft, a portion a magnet on a sheath covering the drive shaft. Alternatively a guide wire can provided with a magnetic material on its distal end. Through the application of a magnetic field and/or a magnetic gradient, the artherectomy device can be guided to the location of the atheromatous material in the body. Once at the site of atheromatous material, through the application of a magnetic field or magnetic gradient, the device can be manipulated into proximity to the atheromatous material to remove the material.