Patents by Inventor Amal Chaturvedi

Amal Chaturvedi 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).

  • Patent number: 11723600
    Abstract: A surgical system used to determine if a vessel is within a region proximate to a working end of a surgical instrument includes at least one light emitter configured to emit light of two different wavelengths. The system also includes at least one light sensor disposed opposite the at least one light emitter, the at least one light sensor configured to detect light at the two different wavelengths and to provide a signal having a pulsatile and a non-pulsatile component for each wavelength. The system further includes a controller coupled to the at least one light sensor and configured to determine and indicate if the vessel is a ureter within the region proximate to the working end of the surgical instrument based on a ratio and a symmetry of a dip in the non-pulsatile component.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: August 15, 2023
    Assignee: Briteseed, LLC
    Inventors: Shetha Shukair, Amal Chaturvedi, Hariharan Subramanian
  • Patent number: 11696777
    Abstract: A surgical system includes a tubular shaft having a wall defining an outer surface and an inner surface disposed about an inner space, the tubular shaft having a proximal end and a distal end. The surgical system also includes at least one light emitter and at least one light sensor disposed at the distal end of the tubular shaft, and one or more leads or conductors electrically coupled to the at least one light emitter or the at least one light sensor. The one or more leads may be disposed in clearances defined by first and second jaws. Alternatively or in addition, the one or more conductors may be formed on a flexible substrate, and the flexible substrate may have a deformed state in which the substrate is disposed in the inner space.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: July 11, 2023
    Assignee: Briteseed, LLC
    Inventors: Jonathan Gunn, Steve McPhilliamy, Hariharan Subramanian, Paul Le Rolland, Amal Chaturvedi, Keith A. Grider, Daniel J. Greene, Sean Corrigan, Tomas Matusaitis, Marcus Stephen Papadopoulos
  • Publication number: 20230200791
    Abstract: A system and method for compensation of angular distortions in a system utilizing light emitters and light sensors disposed on non-parallel jaws may include determining a first point at a first side of a region of interest and a second point at a second side of the region of interest, determining a linear curve including the first and second points, and utilizing the linear curve to remove the angular distortion from the region of interest between the first and second points. A system and method for compensation of angular distortions may alternatively include modeling a non-pulsatile illumination pattern according to the intensities of individual emitters, comparing the pattern according to the model against a non-pulsatile illumination pattern detected using the light sensors, and varying the intensities of the individual emitters based on the comparison until angular distortion has been removed.
    Type: Application
    Filed: February 27, 2023
    Publication date: June 29, 2023
    Inventors: Amal Chaturvedi, Hariharan Subramanian
  • Publication number: 20230085251
    Abstract: A surgical system used to determine a size of a vessel within a region proximate to a working end of a surgical instrument includes at least one light emitter disposed at the working end, an array of light sensors disposed opposite the at least one light emitter, the array comprising a least one row of light sensors, individual light sensors in the row adapted to generate a signal comprising a pulsatile and a non-pulsatile component, and a controller coupled to the array, the controller comprising a splitter to separate the pulsatile component from the non-pulsatile component, and an analyzer to determine the magnitudes of the pulsatile and non-pulsatile components at the individual light sensors, to determine a first peak magnitude and a second peak magnitude of the pulsatile components, and to determine a resting outer diameter of the vessel based on the first and second peak magnitudes.
    Type: Application
    Filed: November 7, 2022
    Publication date: March 16, 2023
    Inventors: Amal Chaturvedi, Hariharan Subramanian, Jonathan Gunn, Mayank Vijayvergia, Shetha Shukair, Paul Le Rolland
  • Patent number: 11589852
    Abstract: A system and method for compensation of angular distortions in a system utilizing light emitters and light sensors disposed on non-parallel jaws may include determining a first point at a first side of a region of interest and a second point at a second side of the region of interest, determining a linear curve including the first and second points, and utilizing the linear curve to remove the angular distortion from the region of interest between the first and second points, A system and method for compensation of angular distortions may alternatively include modeling a non-pulsatile illumination pattern according to the intensities of individual emitters, comparing the pattern according to the model against a non-pulsatile illumination pattern detected using the light sensors, and varying the intensities of the individual emitters based on the comparison until angular distortion has been removed.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: February 28, 2023
    Assignee: Briteseed, LLC
    Inventors: Amal Chaturvedi, Hariharan Subramanian
  • Patent number: 11490820
    Abstract: A surgical system used to determine a size of a vessel within a region proximate to a working end of a surgical instrument includes at least one light emitter disposed at the working end, an array of light sensors disposed opposite the at least one light emitter, the array comprising a least one row of light sensors, individual light sensors in the row adapted to generate a signal comprising a pulsatile and a non-pulsatile component, and a controller coupled to the array, the controller comprising a splitter to separate the pulsatile component from the non-pulsatile component, and an analyzer to determine the magnitudes of the pulsatile and non-pulsatile components at the individual light sensors, to determine a first peak magnitude and a second peak magnitude of the pulsatile components, and to determine a resting outer diameter of the vessel based on the first and second peak magnitudes.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: November 8, 2022
    Assignee: Briteseed, LLC
    Inventors: Amal Chaturvedi, Hariharan Subramanian, Jonathan Gunn, Mayank Vijayvergia, Shetha Shukair, Paul Le Rolland
  • Publication number: 20220287628
    Abstract: A surgical system includes at least one light emitter and an array of light sensors disposed at the working end of the surgical instrument, individual light sensors in the array of light sensors adapted to generate a signal comprising a non-pulsatile component. The system also includes a controller coupled to the array of light sensors, the controller including an analyzer configured to determine a curve of the non-pulsatile components of the signals of each of the individual light sensors in the array of light sensors, smooth the curve, calculate a derivative of the smoothed curve; invert the smoothed curve, calculate a derivative of the inverted smoothed curve, take a difference between the derivatives, smooth the resultant curve, estimate zero crossings of the smoothed, resultant curve, apply a signum function to points adjacent each zero crossing, if any, and identify a region of interest, if any, based on the result.
    Type: Application
    Filed: December 27, 2019
    Publication date: September 15, 2022
    Inventor: Amal Chaturvedi
  • Publication number: 20210338260
    Abstract: A surgical system includes a stimulation generator, at least one sensor disposed at a working end of a surgical instrument, and a controller coupled to the at least one sensor. The controller is configured to obtain data from the at least one sensor over time in response to a stimulation applied by the stimulation generator, analyze the data obtained from the at least one sensor over time to generate sensor data analysis results, apply a signal processing method and/or a pattern matching to the sensor data analysis results, and indicate if a tissue or artifact is present within a region proximate to the working end of the surgical instrument based on the signal processing method or pattern matching.
    Type: Application
    Filed: August 19, 2019
    Publication date: November 4, 2021
    Inventors: Paul Le Rolland, Amal Chaturvedi
  • Publication number: 20210068856
    Abstract: A surgical system includes a tubular shaft having a wall defining an outer surface and an inner surface disposed about an inner space, the tubular shaft having a proximal end and a distal end. The surgical system also includes at least one light emitter and at least one light sensor disposed at the distal end of the tubular shaft, and one or more leads or conductors electrically coupled to the at least one light emitter or the at least one light sensor. The one or more leads may be disposed in clearances defined by first and second jaws. Alternatively or in addition, the one or more conductors may be formed on a flexible substrate, and the flexible substrate may have a deformed state in which the substrate is disposed in the inner space.
    Type: Application
    Filed: December 21, 2018
    Publication date: March 11, 2021
    Inventors: Jonathan Gunn, Steve McPhilliamy, Hariharan Subramanian, Paul Le Rolland, Amal Chaturvedi, Keith A. Grider, Daniel J. Greene, Sean Corrigan, Tomas Matusaitis, Marcus Stephen Papadopoulos
  • Publication number: 20200345297
    Abstract: A surgical system includes at least one light emitter generating light at a first intensity and an array of light sensors including a least one row of light sensors, individual light sensors in the row of light sensors adapted to generate a signal including a non-pulsatile component. The system also includes a controller coupled to the array of light sensors, the controller including an analyzer to determine the magnitudes of the non-pulsatile components at the individual light sensors in the row of light sensors, to determine if the non-pulsatile component transitions from a higher magnitude to a lower magnitude and from a lower magnitude to a higher magnitude, and if so, to determine if the first intensity should be changed to a second intensity.
    Type: Application
    Filed: July 17, 2020
    Publication date: November 5, 2020
    Inventors: Amal Chaturvedi, Hariharan Subramanian, Jonathan Gunn, Mayank Vijayvergia, Shetha Shukair, Paul Le Rolland
  • Patent number: 10820838
    Abstract: A surgical system used to determine a size of a vessel within a region proximate to a working end of a surgical instrument includes at least one light emitter disposed at the working end of the surgical instrument, and at least one light sensor disposed at the working end of the surgical instrument opposite the at least one light emitter, the at least one light sensor adapted to generate a signal comprising a first pulsatile component and a second non-pulsatile component. The system also includes a controller coupled to the at least one light sensor, the controller comprising a splitter to separate the first pulsatile component from the second non-pulsatile component and an analyzer to quantify the size of the vessel within the region proximate to the working end of the surgical instrument based on the first pulsatile component.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: November 3, 2020
    Assignee: Briteseed, LLC
    Inventors: Hariharan Subramanian, Jonathan Gunn, Amal Chaturvedi
  • Publication number: 20200337633
    Abstract: A surgical system used to detect tissue and/or determine tissue characteristics within a region proximate to a working end of a surgical instrument includes at least one light emitter disposed at the working end and configured to be activated to emit photons, and at least one light sensor disposed at the working end, facing in a common direction as the at least one light emitter, and configured to receive photons emitted from the at least one light emitter and exiting from the region, the at least one light sensor configured to receive photons over a limited time period. The system also includes a controller coupled to the at least one light sensor, the controller configured to operate the at least one light sensor to receive photons over the limited time period after a time delay from activation of the at least one light emitter.
    Type: Application
    Filed: January 18, 2019
    Publication date: October 29, 2020
    Inventors: Amal Chaturvedi, Hariharan Subramanian
  • Publication number: 20200268311
    Abstract: A surgical system used to determine if a vessel is within a region proximate to a working end of a surgical instrument includes at least one light emitter configured to emit light of two different wavelengths. The system also includes at least one light sensor disposed opposite the at least one light emitter, the at least one light sensor configured to detect light at the two different wavelengths and to provide a signal having a pulsatile and a non-pulsatile component for each wavelength. The system further includes a controller coupled to the at least one light sensor and configured to determine and indicate if the vessel is a ureter within the region proximate to the working end of the surgical instrument based on a ratio and a symmetry of a dip in the non-pulsatile component.
    Type: Application
    Filed: September 5, 2018
    Publication date: August 27, 2020
    Inventors: Shetha Shukair, Amal Chaturvedi, Hariharan Subramanian
  • Patent number: 10716508
    Abstract: A surgical system includes at least one light emitter generating light at a first intensity and an array of light sensors including a least one row of light sensors, individual light sensors in the row of light sensors adapted to generate a signal including a non-pulsatile component. The system also includes a controller coupled to the array of light sensors, the controller including an analyzer to determine the magnitudes of the non-pulsatile components at the individual light sensors in the row of light sensors, to determine if the non-pulsatile component transitions from a higher magnitude to a lower magnitude and from a lower magnitude to a higher magnitude, and if so, to determine if the first intensity should be changed to a second intensity.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: July 21, 2020
    Assignee: Briteseed, LLC
    Inventors: Amal Chaturvedi, Hariharan Subramanian, Jonathan Gunn, Mayank Vijayvergia, Shetha Shukair, Paul Le Rolland
  • Publication number: 20190175158
    Abstract: A system and method for compensation of angular distortions in a system utilizing light emitters and light sensors disposed on non-parallel jaws may include determining a first point at a first side of a region of interest and a second point at a second side of the region of interest, determining a linear curve including the first and second points, and utilizing the linear curve to remove the angular distortion from the region of interest between the first and second points, A system and method for compensation of angular distortions may alternatively include modeling a non-pulsatile illumination pattern according to the intensities of individual emitters, comparing the pattern according to the model against a non-pulsatile illumination pattern detected using the light sensors, and varying the intensities of the individual emitters based on the comparison until angular distortion has been removed.
    Type: Application
    Filed: August 25, 2017
    Publication date: June 13, 2019
    Inventors: Amal Chaturvedi, Hariharan Subramanian
  • Publication number: 20190046220
    Abstract: A surgical system used to determine the presence of a vessel within a region (102) proximate to a working end (104) of a surgical instrument (106) includes at least one light emitter (110) disposed at the working end (104) of the surgical instrument (106), and at least one light sensor (112) disposed at the working end (104) of the surgical instrument (106) and configured to receive light emitted from the at least one light emitter (110) and reflected from the region (102), the at least one light sensor (112) adapted to generate a signal comprising a first pulsatile component and a second non-pulsatile component.
    Type: Application
    Filed: February 10, 2017
    Publication date: February 14, 2019
    Inventors: Amal Chaturvedi, Hariharan Subramanian, Jonathan Gunn, Shetha Shukair, Paul Le Rolland
  • Publication number: 20180289315
    Abstract: A surgical system includes at least one light emitter generating light at a first intensity and an array of light sensors including a least one row of light sensors, individual light sensors in the row of light sensors adapted to generate a signal including a non-pulsatile component. The system also includes a controller coupled to the array of light sensors, the controller including an analyzer to determine the magnitudes of the non-pulsatile components at the individual light sensors in the row of light sensors, to determine if the non-pulsatile component transitions from a higher magnitude to a lower magnitude and from a lower magnitude to a higher magnitude, and if so, to determine if the first intensity should be changed to a second intensity.
    Type: Application
    Filed: October 7, 2016
    Publication date: October 11, 2018
    Inventors: Amal Chaturvedi, Hariharan Subramanian, Jonathan Gunn, Mayank Vijayvergia, Shetha Shukair, Paul Le Rolland
  • Publication number: 20180098705
    Abstract: A surgical system used to determine a size of a vessel within a region proximate to a working end of a surgical instrument includes at least one light emitter disposed at the working end, an array of light sensors disposed opposite the at least one light emitter, the array comprising a least one row of light sensors, individual light sensors in the row adapted to generate a signal comprising a pulsatile and a non-pulsatile component, and a controller coupled to the array, the controller comprising a splitter to separate the pulsatile component from the non-pulsatile component, and an analyzer to determine the magnitudes of the pulsatile and non-pulsatile components at the individual light sensors, to determine a first peak magnitude and a second peak magnitude of the pulsatile components, and to determine a resting outer diameter of the vessel based on the first and second peak magnitudes.
    Type: Application
    Filed: February 19, 2016
    Publication date: April 12, 2018
    Inventors: Amal Chaturvedi, Hariharan Subramanian, Jonathan Gunn, Mayank Vijayvergia, Shetha Shukair, Paul Le Rolland
  • Publication number: 20180042522
    Abstract: A surgical system used to determine a size of a vessel within a region proximate to a working end of a surgical instrument includes at least one light emitter disposed at the working end of the surgical instrument, and at least one light sensor disposed at the working end of the surgical instrument opposite the at least one light emitter, the at least one light sensor adapted to generate a signal comprising a first pulsatile component and a second non-pulsatile component. The system also includes a controller coupled to the at least one light sensor, the controller comprising a splitter to separate the first pulsatile component from the second non-pulsatile component and an analyzer to quantify the size of the vessel within the region proximate to the working end of the surgical instrument based on the first pulsatile component.
    Type: Application
    Filed: February 19, 2016
    Publication date: February 15, 2018
    Inventors: Hariharan Subramanian, Jonathan Gunn, Amal Chaturvedi