In-Vivo Magnetic Detection of Magnetic Nanoparticles Using Microneedles

    公开(公告)号:US20190231264A1

    公开(公告)日:2019-08-01

    申请号:US16378043

    申请日:2019-04-08

    IPC分类号: A61B5/00 A61B5/05

    摘要: Systems and methods are described that enable sensing of magnetic fields within skin tissue. Specifically, a system includes one or more microneedles that include a high magnetic permeability material. The system also includes a magnetic sensor communicatively coupled to the microneedle and configured to detect a magnetic field proximate to the microneedle. The system also includes a controller configured to receive information indicative of a magnetic field proximate to a portion of the microneedle. The controller is further configured to determine a presence of at least one magnetic nanoparticle proximate to the portion of the microneedle based on the received information. Alternatively, other embodiments include a microneedle that includes a nanodiamond material configured to detect a local magnetic field. Such embodiments also include a light source configured to cause the nanodiamond material to emit characteristic emission light that may indicate at least a magnitude of the magnetic field.

    DEVICE FOR DIGITIZING AND EVALUATING MOVEMENT

    公开(公告)号:US20180333079A1

    公开(公告)日:2018-11-22

    申请号:US15775373

    申请日:2015-12-09

    IPC分类号: A61B5/103 A61B5/00 G01P13/00

    摘要: Disclosed is a motion digitizing and evaluating device, capable of preparing recordings or motion files more accurate—from several aspects—than those known so far, even without a permanent external reference signal. In addition to the inertial measurement units fixed to the separately moving body parts or spare parts of the examined person, living creature or objects, basic parts of the device are also the pressure-sensitive sole units and the pressure sensor gloves, thanks to which the location-changing movements can be truly tracked by the virtual bone system mapped by the software. With more accurate motion detection, the external magnetic orientation—which has so far been inevitable for such purposes in the previous systems—or the application of multi-axial magnetometers can be easily eliminated. A part of the patent is a strap vest for the more precise fixing of the strain-related sensors on the back.