PROBE FOR IMPROVING REGISTRATION ACCURACY BETWEEN A TOMOGRAPHIC IMAGE AND A TRACKING SYSTEM

    公开(公告)号:EP4091570A1

    公开(公告)日:2022-11-23

    申请号:EP22174287.7

    申请日:2022-05-19

    IPC分类号: A61B34/20

    摘要: A medical apparatus includes a probe including a handle having a longitudinal axis, a distal tip disposed on the longitudinal axis, and a position sensor, which is disposed in the handle on the longitudinal axis at a predefined distance from the distal tip and is configured to output a signal indicative of a location of the probe. An alignment jig includes a connector configured to be fixed removably to the distal tip of the probe and three protrusions, which extend from the connector and are configured to contact a surface of a body of a patient at respective points, which are disposed in a plane perpendicular to the longitudinal axis when the connector is fixed to the distal tip of the probe.

    GENERIC BOX FOR ELECTROPHYSIOLOGY SYSTEM ADAPTERS

    公开(公告)号:EP4018932A1

    公开(公告)日:2022-06-29

    申请号:EP21217670.5

    申请日:2021-12-24

    摘要: Apparatus, including an enclosure having a base and a cover with respective conductive layers. The conductive layers connect to form a shield attenuating electromagnetic radiation originating outside the enclosure in a range of 10 kHz - 100 kHz by at least 20 dB within the enclosure. An adapter circuit within the enclosure processes electrophysiological signals to generate an output signal. A first connector passing through the enclosure connects to a probe to receive the electrophysiological signals and convey them to the adapter circuit. A second connector passing through the enclosure receives the output signal from the adapter circuit and conveys it to a console. A control input receives a control signal indicative of a frequency within the range, and a sensing circuit senses a magnetic field within the enclosure and outputs a warning signal when the magnetic field at the frequency indicated by the control signal exceeds a preset threshold.

    SYSTEMS AND METHODS FOR TRACKING A SURGICAL DEVICE

    公开(公告)号:EP3944835A1

    公开(公告)日:2022-02-02

    申请号:EP21188645.2

    申请日:2021-07-30

    IPC分类号: A61B34/20 A61B90/00

    摘要: Systems, methods, and devices for registering a 3D image of a patient with magnetic coordinates are disclosed. A tri-axial sensor (TAS) may be added to the 3D camera. The location and orientation of the TAS sensor may be determined based on the known magnetic fields that are applied by a magnetic field transmitter. The camera coordinate system may then be transferred to the magnetic coordinate system. After completing the registration of the 3D image with a CT image and the 3D image with the magnetic coordinates, the CT image may then be registered with the magnetic coordinates.