Patents by Inventor Christopher E. Griffin

Christopher E. Griffin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240036720
    Abstract: In part, the disclosure relates to intravascular data collection systems and the software-based visualization and display of intravascular data relating to detected side branches and side branch obstruction. An estimate of side branch diameter can be made based on a vessel profile or a maximum diameter of a vessel at a distal and proximal location relative to the side branch. A amount of side branch obstruction may be determined by comparing an observed side branch diameter with in the image data with the estimated side branch diameter. In addition, an amount of blood flow obstruction may also be determined.
    Type: Application
    Filed: August 15, 2023
    Publication date: February 1, 2024
    Applicant: LightLab Imaging, Inc.
    Inventors: Ajay Gopinath, Denis Dion, Christopher E. Griffin, Desmond Adler
  • Publication number: 20240032894
    Abstract: In part, the disclosure relates to computer-based methods, devices, and systems suitable for detecting a delivery catheter using intravascular data. In one embodiment, the delivery catheter is used to position the intravascular data collection probe. The probe can collect data suitable for generating one or more representations of a blood vessel with respect to which the delivery catheter can be detected.
    Type: Application
    Filed: October 5, 2023
    Publication date: February 1, 2024
    Applicant: LightLab Imaging, Inc.
    Inventors: James G. Peterson, Christopher E. Griffin, Sonal Ambwani
  • Patent number: 11850089
    Abstract: In part, the disclosure relates to computer-based methods, devices, and systems suitable for detecting a delivery catheter using intravascular data. In one embodiment, the delivery catheter is used to position the intravascular data collection probe. The probe can collect data suitable for generating one or more representations of a blood vessel with respect to which the delivery catheter can be detected.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: December 26, 2023
    Assignee: LightLab Imaging, Inc.
    Inventors: James G. Peterson, Christopher E. Griffin, Sonal Ambwani
  • Patent number: 11768593
    Abstract: In part, the disclosure relates to intravascular data collection systems and the software-based visualization and display of intravascular data relating to detected side branches and side branch obstruction. An estimate of side branch diameter can be made based on a vessel profile or a maximum diameter of a vessel at a distal and proximal location relative to the side branch. A amount of side branch obstruction may be determined by comparing an observed side branch diameter with in the image data with the estimated side branch diameter. In addition, an amount of blood flow obstruction may also be determined.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: September 26, 2023
    Assignee: LightLab Imaging, Inc.
    Inventors: Ajay Gopinath, Denis Dion, Christopher E. Griffin, Desmond Adler
  • Publication number: 20230082121
    Abstract: The disclosure relates, in part, to computer-based visualization of stent position within a blood vessel. A stent can be visualized using intravascular data and subsequently displayed as stent struts or portions of a stent as a part of a one or more graphic user interface(s) (GUI). In one embodiment, the method includes steps to distinguish stented region(s) from background noise using an amalgamation of angular stent strut information for a given neighborhood of frames. The GUI can include views of a blood vessel generated using distance measurements and demarcating the actual stented region(s), which provides visualization of the stented region. The disclosure also relates to display of intravascular diagnostic information such as indicators. An indicator can be generated and displayed with images generated using an intravascular data collection system. The indicators can include one or more viewable graphical elements suitable for indicating diagnostic information such as stent information.
    Type: Application
    Filed: November 14, 2022
    Publication date: March 16, 2023
    Applicant: LightLab Imaging, Inc.
    Inventors: Sonal Ambwani, Christopher E. Griffin, James G. Peterson, Satish Kaveti, Joel M. Friedman
  • Patent number: 11532087
    Abstract: The disclosure relates, in part, to computer-based visualization of stent position within a blood vessel. A stent can be visualized using intravascular data and subsequently displayed as stent struts or portions of a stent as a part of a one or more graphic user interface(s) (GUI). In one embodiment, the method includes steps to distinguish stented region(s) from background noise using an amalgamation of angular stent strut information for a given neighborhood of frames. The GUI can include views of a blood vessel generated using distance measurements and demarcating the actual stented region(s), which provides visualization of the stented region. The disclosure also relates to display of intravascular diagnostic information such as indicators. An indicator can be generated and displayed with images generated using an intravascular data collection system. The indicators can include one or more viewable graphical elements suitable for indicating diagnostic information such as stent information.
    Type: Grant
    Filed: January 22, 2021
    Date of Patent: December 20, 2022
    Assignee: LightLab Imaging, Inc.
    Inventors: Sonal Ambwani, Christopher E. Griffin, James G. Peterson, Satish Kaveti, Joel M. Friedman
  • Patent number: 11469077
    Abstract: A microwave plasma chemical vapor deposition device for diamond synthesis. A microwave source generates a microwave signal, and a resonant cavity receives a plurality of process gases. The microwave signal is spread in a first mode at a first waveguide. A mode conversion antenna converts the first mode of the microwave signal into a second mode that is spread at a second waveguide. A coupling conversion cavity receives and transmits the microwave signal in the second mode to the mode conversion antenna thereby converting the second mode of the microwave signal into a third mode. A medium viewport receives the microwave signal in the third mode and transmits to the resonant cavity which enables the microwave signal to excite and discharge the process gases to form spherical plasma, carbon containing groups and atomic hydrogen thereby depositing a diamond film on a seed.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: October 11, 2022
    Assignee: FD3M, Inc.
    Inventors: Yi Ma, Matthew L. Scullin, Jinhua Zhu, Jianxin Wu, Yong Miao, Di Lu, Yonggan Ai, Christopher E. Griffin
  • Publication number: 20220280259
    Abstract: Aspects of the disclosure relate to the identification of when a blood vessel has been sufficiently cleared of blood so as to capture intravascular images of the vessel wall. The disclosed systems and methods allow for the identification of an initial and a final blood clearing based on the identification of edges within scanlines of a plurality of image frames. The edges of a plurality of scanlines may be analyzed to determine an average edge offset for each image frame, and the average edge offsets for a plurality of image frames may be averaged over various time-windows, so as to determine when the initial and final blood clearing events have occurred. Once a final blood clearing event has been identified, the disclosed system may automatically initiate a catheter pullback procedure, so as to capture intravascular images over a length of the vessel that has been sufficiently cleared of blood.
    Type: Application
    Filed: March 2, 2022
    Publication date: September 8, 2022
    Applicant: LightLab Imaging, Inc.
    Inventors: Christopher E. Griffin, Joel M. Friedman, Ashley Netravali, Lingfa Yang
  • Publication number: 20220244841
    Abstract: In part, the disclosure relates to intravascular data collection systems and the software-based visualization and display of intravascular data relating to detected side branches and side branch obstruction. An estimate of side branch diameter can be made based on a vessel profile or a maximum diameter of a vessel at a distal and proximal location relative to the side branch. A amount of side branch obstruction may be determined by comparing an observed side branch diameter with in the image data with the estimated side branch diameter. In addition, an amount of blood flow obstruction may also be determined.
    Type: Application
    Filed: February 17, 2022
    Publication date: August 4, 2022
    Applicant: LightLab Imaging, Inc.
    Inventors: Ajay Gopinath, Denis Dion, Christopher E. Griffin, Desmond Adler
  • Patent number: 11367186
    Abstract: The disclosure relates to stent detection and shadow detection in the context of intravascular data sets obtained using a probe such as, for example, and optical coherence tomography probe or an intravascular ultrasound probe.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: June 21, 2022
    Assignee: LightLab Imaging, Inc.
    Inventors: Sonal Ambwani, Christopher E. Griffin
  • Patent number: 11287961
    Abstract: In part, the disclosure relates to intravascular data collection systems and the software-based visualization and display of intravascular data relating to detected side branches and detected stent struts. Levels of stent malapposition can be defined using a user interface such as a slider, toggle, button, field, or other interface to specify how indicia are displayed relative to detected stent struts. In addition, the disclosure relates to methods to automatically provide a two or three-dimensional visualization suitable for assessing side branch and/or guide wire location during stenting. The method can use one or more a computed side branch location, a branch takeoff angle, one or more stent strut locations, and one or more lumen contours.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: March 29, 2022
    Assignee: LightLab Imaging, Inc.
    Inventors: Ajay Gopinath, Denis Dion, Christopher E. Griffin, Desmond Adler
  • Publication number: 20210217175
    Abstract: The disclosure relates, in part, to computer-based visualization of stent position within a blood vessel. A stent can be visualized using intravascular data and subsequently displayed as stent struts or portions of a stent as a part of a one or more graphic user interface(s) (GUI). In one embodiment, the method includes steps to distinguish stented region(s) from background noise using an amalgamation of angular stent strut information for a given neighborhood of frames. The GUI can include views of a blood vessel generated using distance measurements and demarcating the actual stented region(s), which provides visualization of the stented region. The disclosure also relates to display of intravascular diagnostic information such as indicators. An indicator can be generated and displayed with images generated using an intravascular data collection system. The indicators can include one or more viewable graphical elements suitable for indicating diagnostic information such as stent information.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 15, 2021
    Applicant: LightLab Imaging, Inc.
    Inventors: Sonal Ambwani, Christopher E. Griffin, James G. Peterson, Satish Kaveti, Joel M. Friedman
  • Patent number: 10902599
    Abstract: The disclosure relates, in part, to computer-based visualization of stent position within a blood vessel. A stent can be visualized using intravascular data and subsequently displayed as stent struts or portions of a stent as a part of a one or more graphic user interface(s) (GUI). In one embodiment, the method includes steps to distinguish stented region(s) from background noise using an amalgamation of angular stent strut information for a given neighborhood of frames. The GUI can include views of a blood vessel generated using distance measurements and demarcating the actual stented region(s), which provides visualization of the stented region. The disclosure also relates to display of intravascular diagnostic information such as indicators. An indicator can be generated and displayed with images generated using an intravascular data collection system. The indicators can include one or more viewable graphical elements suitable for indicating diagnostic information such as stent information.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: January 26, 2021
    Assignee: LightLab Imaging, Inc.
    Inventors: Sonal Ambwani, Christopher E. Griffin, James G. Peterson, Satish Kaveti, Joel M. Friedman
  • Publication number: 20210004955
    Abstract: The disclosure relates to stent detection and shadow detection in the context of intravascular data sets obtained using a probe such as, for example, and optical coherence tomography probe or an intravascular ultrasound probe.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 7, 2021
    Applicant: LightLab Imaging, Inc.
    Inventors: Sonal Ambwani, Christopher E. Griffin
  • Publication number: 20200330070
    Abstract: In part, the disclosure relates to computer-based methods, devices, and systems suitable for detecting a delivery catheter using intravascular data. In one embodiment, the delivery catheter is used to position the intravascular data collection probe. The probe can collect data suitable for generating one or more representations of a blood vessel with respect to which the delivery catheter can be detected.
    Type: Application
    Filed: May 8, 2020
    Publication date: October 22, 2020
    Applicant: LightLab Imaging, Inc.
    Inventors: James G. Peterson, Christopher E. Griffin, Sonal Ambwani
  • Patent number: 10713786
    Abstract: The disclosure relates to stent detection and shadow detection in the context of intravascular data sets obtained using a probe such as, for example, and optical coherence tomography probe or an intravascular ultrasound probe.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: July 14, 2020
    Assignee: LIGHTLAB IMAGING, INC.
    Inventors: Sonal Ambwani, Christopher E. Griffin
  • Patent number: 10646198
    Abstract: In part, the disclosure relates to computer-based methods, devices, and systems suitable for detecting a delivery catheter using intravascular data. In one embodiment, the delivery catheter is used to position the intravascular data collection probe. The probe can collect data suitable for generating one or more representations of a blood vessel with respect to which the delivery catheter can be detected.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: May 12, 2020
    Assignee: LIGHTLAB IMAGING, INC.
    Inventors: James G. Peterson, Christopher E. Griffin, Sonal Ambwani
  • Publication number: 20200142575
    Abstract: In part, the disclosure relates to intravascular data collection systems and the software-based visualization and display of intravascular data relating to detected side branches and detected stent struts. Levels of stent malapposition can be defined using a user interface such as a slider, toggle, button, field, or other interface to specify how indicia are displayed relative to detected stent struts. In addition, the disclosure relates to methods to automatically provide a two or three-dimensional visualization suitable for assessing side branch and/or guide wire location during stenting. The method can use one or more a computed side branch location, a branch takeoff angle, one or more stent strut locations, and one or more lumen contours.
    Type: Application
    Filed: June 18, 2019
    Publication date: May 7, 2020
    Applicant: LightLab Imaging, Inc.
    Inventors: Ajay Gopinath, Denis Dion, Christopher E. Griffin, Desmond Adler
  • Patent number: 10529093
    Abstract: In part, the disclosure relates to methods of guidewire detection in intravascular data sets such as scan lines, frames, images and combinations thereof. Methods of generating one or more indicia of a guidewire in a representation of blood vessel are also features of the disclosure. A carpet view is generated in one embodiment and regions of relatively higher contrast are detected as candidate guidewire regions. In one embodiment, the disclosure relates to selective removal of guidewire segments from a set of intravascular data and the display of a representation of a blood vessel via a user interface. Representations of a guidewire can be toggled on and off in one embodiment.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 7, 2020
    Assignee: LIGHTLAB IMAGING, INC.
    Inventors: Christopher E. Griffin, Sonal Ambwani, Satish Kaveti
  • Publication number: 20190326097
    Abstract: A microwave plasma chemical vapor deposition device for diamond synthesis. A microwave source generates a microwave signal, and a resonant cavity receives a plurality of process gases. The microwave signal is spread in a first mode at a first waveguide. A mode conversion antenna converts the first mode of the microwave signal into a second mode that is spread at a second waveguide. A coupling conversion cavity receives and transmits the microwave signal in the second mode to the mode conversion antenna thereby converting the second mode of the microwave signal into a third mode. A medium viewport receives the microwave signal in the third mode and transmits to the resonant cavity which enables the microwave signal to excite and discharge the process gases to form spherical plasma, carbon containing groups and atomic hydrogen thereby depositing a diamond film on a seed.
    Type: Application
    Filed: April 22, 2019
    Publication date: October 24, 2019
    Inventors: Yi Ma, Matthew L. Scullin, Jinhua Zhu, Jianxin Wu, Yong Miao, Di Lu, Yonggan Ai, Christopher E. Griffin