Briteseed, LLC

Amal Chaturvedi

Hariharan Subramanian

Jonathan Gunn

Paul Le Rolland

Shetha Shukair

Mayank Vijayvergia

Keith Aaron Grider

Sean Corrigan

Tomas Matusaitis

Daniel Joseph Greene

Steve McPhilliamy

Marcus Stephen Papadopoulos

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.

Optical surgical system having light emitters and light sensors coupled to a controller configured to remove angular distortion via comparison of illumination pattern

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.

System and method used to detect or differentiate tissue or an artifact

A surgical system used to determine the presence 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 () and configured to receive light emitted from the at least one light emitter () and reflected from the region (), 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 determine the presence of the vessel within the region () proximate to the working end () of the surgical instrument () based on the first pulsatile component.

System to differentiate and identify types of tissue within a region proximate to a working end of a surgical instrument

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.

System and method for determining vessel size

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.

System and method used to determine tissue and/or artifact characteristics

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.

Compact system used to determine tissue or artifact characteristics

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.

Optical surgical system having light sensor on its jaw and method for determining vessel size with angular distortion compensation

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.

System and method for determining vessel size and/or edge

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.

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Chicago, IL, United States of America

Amal Chaturvedi