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公开(公告)号：US11207099B2
公开(公告)日：2021-12-28
申请号：US15861889
申请日：2018-01-04
发明人： Cameron Piron , Michael Wood , Gal Sela , Joshua Richmond , Murugathas Yuwaraj , Stephen McFadyen , Alex Panther , Nishanthan Shanmugaratnam , William Lau , Monroe M. Thomas , Wes Hodges , Simon Alexander , David Gallop
IPC分类号： A61B17/34 , A61B34/20 , A61B34/30 , A61B5/00 , A61B5/06 , A61B34/10 , A61B17/00 , A61B90/00 , A61B90/50 , A61B90/10
摘要： System and methods are provided for adaptively and intraoperatively configuring an automated arm used during a medical procedure. The automated arm is configured to position and orient an end effector on the automated arm a desired distance and orientation from a target. The end effector may be an external video scope and the target may be a surgical port. The positions and orientations of the end effector and the target may be continuously updated. The position of the arm may be moved to new locations responsive to user commands. The automated arm may include a multi-joint arm attached to a weighted frame. The weighted frame may include a tower and a supporting beam.
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公开(公告)号：US20210338342A1
公开(公告)日：2021-11-04
申请号：US17378311
申请日：2021-07-16
发明人： Kamyar ABHARI , Stewart David MCLACHLIN , Kai Michael HYNNA , Gal SELA , Jared Rowland SHOUP , Michael Peter BULK , Kelly Noel DYER
摘要： Methods and systems for providing feedback during a medical procedure. The 3D position and orientation of a tracked tool are determined, relative to a site of the medical procedure, based on tracking information received from a tracking system. The 3D position and orientation are mapped to a common coordinate space, to determine the 3D position and orientation relative to a field-of-view (FOV) of an optical camera that is capturing an optical image of the site. Navigational information associated with the 3D position and orientation is determined. A virtual representation of the navigational information overlaid on the FOV and displayed. The displayed virtual representation is updated when the 3D position and orientation of the tracked tool changes or when the FOV changes, in accordance with the change.
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公开(公告)号：US20210333342A1
公开(公告)日：2021-10-28
申请号：US17369924
申请日：2021-07-07
IPC分类号： G01R33/3875 , G01R33/48
摘要： A fat saturation method for a magnetic resonance imaging system having a main magnet providing a magnetic field B0 The method includes: driving a shim coil assembly with a first set of shimming currents to sufficiently alter a B0 field inhomogeneity of the magnetic field B0 within a region that includes a first imaging volume of interest such that water saturation inside the region is reduced from before the first set of shimming currents are applied; applying a fat saturation pulse to the region; identifying the first imaging volume of interest from the region; driving the shim coil assembly with a second set of shimming currents to alter the B0 field inhomogeneity of the magnetic field B0 within the first imaging volume of interest such that the B0 field inhomogeneity within the first imaging volume of interest is reduced; and obtaining magnetic resonance signals from the first imaging volume of interest.
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公开(公告)号：US11103314B2
公开(公告)日：2021-08-31
申请号：US15821985
申请日：2017-11-24
IPC分类号： A61B34/20 , G16H20/40 , G16H30/40 , G16H30/20 , A61B90/00 , A61B90/50 , A61B34/30 , A61B17/00
摘要： A method and device for tracking objects by surgical navigation systems. The method includes: capturing an image of the tracked object; determining whether a unique identifiable feature associated with at least one totem pattern is discernible in the image; when the unique identifiable feature is discernible: determining a position or an orientation of the tracked object based on the at least one totem pattern; and registering the at least one totem pattern in the surgical coordinate space; and when the unique identifiable feature is indiscernible: determining a position of each totem pattern relative to other totem patterns such that a combination of totem patterns within the captured image is a marker group detectable as a composite totem pattern; determining a position or an orientation of the tracked object based on the composite totem pattern associated with the tracked object; and registering the composite totem pattern in the surgical coordinate space.
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45.发明申请公开(公告)号：US20210263121A1
公开(公告)日：2021-08-26
申请号：US17301312
申请日：2021-03-31
发明人： Chad Tyler Harris , David Mark Deschenes , Alexander Gyles Panther , Jeff Alan Stainsby , Philip J. Beatty
IPC分类号： G01R33/50 , G01R33/38 , G01R33/3815 , G01R33/44
摘要： Systems and methods for magnetic field-dependent relaxometry using magnetic resonance imaging (“MRI”) are provided. Relaxation parameters, including longitudinal relaxation time (“T1”) and transverse relaxation time (“T2”), are estimated from magnetic resonance signal data acquired at multiple different magnetic field strengths using the same MRI system. By measuring these relaxation parameters as a function of magnetic field strength, T1 dispersion data, T2 dispersion data, or both, are generated. Based on this dispersion data, quantitative physiological parameters can be estimated. As one example, iron content can be estimated from T2 dispersion data.
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公开(公告)号：US20210235991A1
公开(公告)日：2021-08-05
申请号：US17301997
申请日：2021-04-21
发明人： Ze Shan YAO , Piotr KUCHNIO , Michael Frank Gunter WOOD , Tammy Kee-Wai LEE , Yanhui BAI , Michael Peter BULK , Christopher Thomas JAMIESON
IPC分类号： A61B5/00 , A61B34/20 , A61B90/00 , A61B5/026 , A61B5/06 , G01J3/28 , G01J3/10 , G01J3/02 , G01J3/443
摘要： A multispectral synchronized imaging system is provided. A multispectral light source of the system comprises: blue, green and red LEDs, and one or more non-visible light sources, each being independently addressable and configured to emit, in a sequence: at least visible white light, and non-visible light in one or more given non-visible frequency ranges. The system further comprises a camera and an optical filter arranged to filter light received at the camera, by: transmitting visible light from the LEDs; filter out non-visible light from the non-visible light sources; and otherwise transmit excited light emitted by a tissue sample excited by non-visible light. Images acquired by the camera are output to a display device. A control unit synchronizes acquisition of respective images at the camera for each of blue light, green light, visible white light, and excited light received at the camera, as reflected by the tissue sample.
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公开(公告)号：US20210116524A1
公开(公告)日：2021-04-22
申请号：US17114661
申请日：2020-12-08
IPC分类号： G01R33/3815 , H01F6/00 , G01R33/50 , G01R33/38
摘要： A method is provided for magnetic resonance (MR) imaging near metal, including acquiring an image at a first magnetic field from a subject that includes a metal object, acquiring an image at a second magnetic field, and combining the images to provide a corrected image with reduced metal distortion. An MR imaging system for measuring near metal is also provided including a superconducting magnet to provide a magnetic field, a power supply for a current to ramp the magnetic field, a cryocooler in contact with the superconducting magnet, a magnetic field controller programmed to ramp the main magnetic field by adjusting the current generated by the power supply, a radio frequency system for transmitting and receiving signals, and a data acquisition and processing system to receive the MR signals, generate image data sets and combine the image data sets to provide a corrected image having a reduced metal distortion.
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公开(公告)号：US10959779B2
公开(公告)日：2021-03-30
申请号：US15597830
申请日：2017-05-17
发明人： Cameron Piron , Gal Sela , Monroe M. Thomas , Simon Alexander , Murugathas Yuwaraj , Michael Wood , Alex Panther , Joshua Richmond , Wes Hodges , David Gallop
IPC分类号： A61B34/10 , G06T7/30 , A61B34/00 , A61B17/34 , A61B5/00 , G06T7/00 , G16H50/70 , G16H50/20 , G16H10/40 , G16H20/40 , G16H40/20 , G16H30/20 , A61B34/20 , A61B90/50 , A61B90/57 , A61B90/00 , G16H10/60 , A61B90/10
摘要： Systems and methods are provided in which local tissue diagnostic measurements are correlated with archival local tissue diagnostic data from prior tissue analyses to supplement diagnostic measurements with tissue analysis data from prior tissue analyses having similar local tissue diagnostic data. The tissue analysis data may include information such as pathology data, outcome data, and diagnosis data. The archived local tissue diagnostic data and the tissue analysis data may be stored in a database, and employed for a wide variety of methods, involving preoperative, intraoperative, and/or postoperative phases of a medical procedure. Methods and systems are also provided for displaying, on a medical image shown in a user interface, hyperlinked reference markers associated with tissue analyses, where the reference markers are shown at locations corresponding to local tissue analyses, and where associated diagnostic data and/or tissue analysis may be viewed by selecting a given reference marker.
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公开(公告)号：US10925676B2
公开(公告)日：2021-02-23
申请号：US15694241
申请日：2017-09-01
发明人： Cameron Anthony Piron , Michael Frank Gunter Wood , Gal Sela , Joshua Lee Richmond , Murugathas Yuwaraj , Stephen B. E. McFadyen , Kelly Noel Dyer , Monroe M. Thomas , Wes Hodges , Simon Alexander , David Gallop
IPC分类号： A61B5/00 , A61B34/20 , A61B90/90 , A61B90/98 , A61B34/00 , A61B17/00 , A61B90/50 , A61B34/30 , A61B90/00 , A61B34/10 , A61B90/10
摘要： A method, system and apparatus for controlling a surgical navigation system are provided. The method 1 comprises receiving image data at a processor from a tracking system; receiving, at a processor, an identifier of a surgical instrument within a field of view of the tracking system; generating, at the processor, output data based on the identifier of the surgical instrument; and transmitting the output data to at least one output device connected to the processor, for controlling the output device.
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公开(公告)号：US20230071061A1
公开(公告)日：2023-03-09
申请号：US17940080
申请日：2022-09-08
摘要： A phantom is disclosed containing fluorescence properties similar to anatomy that is needed to be visualized during surgical procedures. The phantom is created using substances including fluorophores that respond to UV light excitation to give visual cues of the phantom. The phantom can vary in phase and fluorescent properties depending on what it needs to simulate in the medical field with the purpose to help train users for surgical and diagnostic procedures, and develop, enhance, and calibrate imaging technology.
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