GRADIENT COIL APPARATUS AND METHODS FOR MRI

    公开(公告)号:US20220137167A1

    公开(公告)日:2022-05-05

    申请号:US17645108

    申请日:2021-12-20

    IPC分类号: G01R33/385

    摘要: A coil apparatus and methods for magnetic resonance imaging involving a wire winding, the wire winding having at least one of: a hollow cross-section wire and a solid cross-section wire, the solid cross-section wire having at least one of: a solid small cross-section wire and a solid large cross-section wire, the solid large cross-section wire having a thickness greater than that of the solid small cross-section wire, and the solid small cross-section wire disposed in one of adjacent and proximate at least one of the hollow cross-section wire and the solid large cross-section wire, whereby at least one of current density, winding density, and heat extraction are increasable.

    REAL-TIME COMPENSATION OF HIGH-ORDER CONCOMITANT MAGNETIC FIELDS

    公开(公告)号:US20220120837A1

    公开(公告)日:2022-04-21

    申请号:US17561890

    申请日:2021-12-24

    IPC分类号: G01R33/565 G01R33/3875

    摘要: A method, electromagnet device, and system for reducing a higher order term of a concomitant field in an imaging magnetic field during magnetic resonance imaging is described. The electromagnet system has a first shim coil configured to be driven to generate a first compensation magnetic field during imaging according to a first second-order compensation term, the first compensation magnetic field having a similar amplitude but opposite direction as that of a first second-order concomitant magnetic field.

    DRESSING APPARATUS AND METHODS FOR FACILITATING HEALING

    公开(公告)号:US20220079814A1

    公开(公告)日:2022-03-17

    申请号:US17456704

    申请日:2021-11-29

    IPC分类号: A61F13/00

    摘要: A dressing apparatus and methods for facilitating healing, the apparatus and methods involving a dressing member, an electromagnetically conductive element mechanically coupled with the dressing member, and a primary RFID device configured to transmit at least one output signal to the electromagnetically conductive element, to receive at least one return signal from the electromagnetically conductive element, and to provide an alert if the at least one return signal has a strength corresponding to at least approximately a threshold amount of fluid present in the dressing member, whereby healing is facilitated.

    3D NAVIGATION SYSTEM AND METHODS
    85.
    发明申请

    公开(公告)号:US20220079686A1

    公开(公告)日:2022-03-17

    申请号:US17456230

    申请日:2021-11-23

    摘要: A 3D navigation system and methods for enhancing feedback during a medical procedure, involving: an optical imaging system having an optical assembly comprising movable zoom optics and movable focus optics, a zoom actuator for positioning the zoom optics, a focus actuator for positioning the focus optics, a controller for controlling the zoom actuator and the focus actuator in response to received control input, at least one detector for capturing an image of at least one of a target and an obstacle, the at least one detector operable with the optical assembly, and a proprioception feature operable with the optical imaging system for generating a 3D perception, the proprioception feature comprising a communication feature for providing 3D information, the 3D information comprising real-time depth information in relation to real-time planar information within an interrogation volume.

    MULTI-FIBER OPTICAL PROBE AND OPTICAL COHERENCE TOMOGRAPHY SYSTEM

    公开(公告)号:US20220071492A1

    公开(公告)日:2022-03-10

    申请号:US17454517

    申请日:2021-11-11

    IPC分类号: A61B5/00 A61B90/00 G01B9/02

    摘要: Multichannel optical coherence systems and methods involving optical coherence tomography (OCT) subsystems are operably and respectively connected to optical fibers of a multichannel optical probe, such that each optical fiber forms at least a distal portion of a sample beam path of a respective OCT subsystem. The optical fibers are in optical communication with distal optical elements such that external beam paths associated therewith are directed towards a common spatial region external to the housing. Image processing computer hardware is employed to process OCT signals obtained from the plurality of OCT subsystems to generate an OCT image dataset comprising a plurality of OCT A-scans and process the OCT image dataset to generate volumetric image data based on known positions and orientations of the external beam paths associated with the OCT subsystems.

    Magnetic resonance visible labels and markers for encoding information

    公开(公告)号:US11266326B2

    公开(公告)日:2022-03-08

    申请号:US16133530

    申请日:2018-09-17

    摘要: Systems and methods for manufacturing and using magnetic resonance (“MR”) visible labels or markers to encode information unique to the subject or object being imaged by a magnetic resonance imaging (“MRI”) system are provided. The use of such MR-visible labels or markers enables unique information associated with the subject or object being imaged to be encoded into the images of the subject or object. This information can be used to anonymize protected health information (“PHI”); to provide detailed information about a surgical simulation device, quality assurance phantom, or the like; to provide spatial orientation and registration information; or so on.

    SYSTEM AND METHODS USING A VIDEOSCOPE WITH INDEPENDENT-ZOOM FOR ENABLING SHARED-MODE FOCUSING

    公开(公告)号:US20220031422A1

    公开(公告)日:2022-02-03

    申请号:US17451009

    申请日:2021-10-15

    摘要: Imaging systems and methods involving a videoscope including cameras; a filter feature in optical communication with the cameras, the filter feature configured to independently filter or tandemly filter light from each camera; an independently adjustable aperture in optical communication with the filter feature, the independently adjustable aperture configured to limit transmission of filtered light; independently adjustable zoom features in optical communication with the independently adjustable aperture, the independently adjustable zoom features including corresponding independently adjustable zoom channels, and each independently adjustable zoom feature configured to independently zoom independently limited filtered light; a prism in optical communication with the independently adjustable zoom channels, the prism configured to redirect independently zoomed, independently limited, filtered light; and a shared focus feature in optical communication with the prism, the shared focus feature comprising a shared focus channel, and the shared focus feature configured to focus redirected, independently zoomed, independently limited, filtered light.

    Dressing apparatus and methods for facilitating healing

    公开(公告)号:US11229553B2

    公开(公告)日:2022-01-25

    申请号:US15238128

    申请日:2016-08-16

    IPC分类号: A61F13/00

    摘要: A dressing apparatus and methods for facilitating healing, the apparatus and methods involving a dressing member, an electromagnetically conductive element mechanically coupled with the dressing member, and a primary RFID device configured to transmit at least one output signal to the electromagnetically conductive element, to receive at least one return signal from the electromagnetically conductive element, and to provide an alert if the at least one return signal has a strength corresponding to at least approximately a threshold amount of fluid present in the dressing member, whereby healing is facilitated.

    Method for recovering patient registration

    公开(公告)号:US11191595B2

    公开(公告)日:2021-12-07

    申请号:US16824145

    申请日:2020-03-19

    摘要: A method for updating a patient registration during a medical procedure is disclosed. The medical procedure uses an optical navigation system for optically tracking a patient reference object in a real-world space. The method includes: acquiring a first set of image data depicting a region of interest on the patient while a first patient registration is intact; detecting that the first patient registration has been lost; obtaining a second set of image data depicting the region of interest; and applying a transform to data points of the first region to obtain data points for an updated patient registration, the transform obtained based on the first and second sets of image data.