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公开(公告)号：US20220260360A1
公开(公告)日：2022-08-18
申请号：US17666726
申请日：2022-02-08
Applicant: LightLab Imaging, Inc.
Inventor： Chih-Hao Liu , Steven M. Stromski
IPC: G01B9/02091 , G01B9/02055 , G01B9/02
Abstract: Aspects of the disclosure relate to systems, methods, and algorithms to perform wavenumber linearization and dispersion correction in optical systems without the need for hardware modifications, empirical adjustments, precise mirror alignment, and which can be conducted at low computational costs and in real-time. A one-time calibration process can generate spectra or calibration criteria, including wavenumber-linearization criteria, dispersion correction, and spectral flattening spectra, which can be used to correct an optical coherence tomogram in real time.
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公开(公告)号：US20250049512A1
公开(公告)日：2025-02-13
申请号：US18798322
申请日：2024-08-08
Applicant: LightLab Imaging, Inc.
Inventor： Humphrey Chen , Ajay Gopinath , Gregory Patrick Amis , Avi Motova , Songyuan Tang , Chiedza Chauruka , Chih-Hao Liu , Karl W. Engel
Abstract: The present disclosure provides systems and methods for dynamically visualizing the delivery of a device within a vessel by correlating at least one first extraluminal image with second extraluminal images. The extraluminal images may be correlated based on motion features, without the use of other sensors or timestamps. The first extraluminal image may be a high dose contrast x-ray angiogram (“XA”) and the second extraluminal images may be low dose contrast XAs. The high dose contrast XA may be used to generate a vessel map. The low dose contrast XAs may be taken during the delivery of a device, such as a balloon, stent, probe, or the like. Correlating the high dose XA and low dose XA based on motion features allows for the vessel map to be overlaid on the low dose XA to provide the physician visualization of where the device is within the vessel tree in real time.
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公开(公告)号：US11892291B2
公开(公告)日：2024-02-06
申请号：US17666726
申请日：2022-02-08
Applicant: LightLab Imaging, Inc.
Inventor： Chih-Hao Liu , Steven M. Stromski
IPC: G01B9/02 , G01B9/02091 , G01B9/02055
CPC classification number: G01B9/02091 , G01B9/02064 , G01B9/02084 , G01B2210/58
Abstract: Aspects of the disclosure relate to systems, methods, and algorithms to perform wavenumber linearization and dispersion correction in optical systems without the need for hardware modifications, empirical adjustments, precise mirror alignment, and which can be conducted at low computational costs and in real-time. A one-time calibration process can generate spectra or calibration criteria, including wavenumber-linearization criteria, dispersion correction, and spectral flattening spectra, which can be used to correct an optical coherence tomogram in real time.
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公开(公告)号：US20230280153A1
公开(公告)日：2023-09-07
申请号：US18177477
申请日：2023-03-02
Applicant: LightLab Imaging, Inc.
Inventor： Steven M. Stromski , Chih-Hao Liu
IPC: G01B9/02091 , G01B9/02055 , G01B9/02015
CPC classification number: G01B9/02091 , G01B9/02055 , G01B9/02015
Abstract: Aspects of the disclosure provide for automated self-inspection by an OCT imaging engine or device, to identify and resolve failures or inefficiencies in the hardware and/or software of the system or device during imaging. An OCT imaging engine can include a catheter connection check system for checking the quality of a physical connection point between a catheter and other components of an OCT imaging device or system. In some examples, the OCT imaging engine includes a self-inspection engine implemented to perform routine self-inspection by using a reference reflector internal to the OCT imaging engine to generate system performance data. The OCT imaging engine can use the system performance data to periodically search for and resolve failures or inefficiencies in the system. The OCT imaging engine can perform a self-calibration process to perform k-linearization and/or correct for chromatic dispersion using mirror measurements collected from an internal reference reflector.
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