Patents by Inventor David Vader
David Vader 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).
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Publication number: 20230280154Abstract: The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.Type: ApplicationFiled: May 15, 2023Publication date: September 7, 2023Applicant: NINEPOINT MEDICAL, INC.Inventors: Eman Namati, Muhammad Al-Qaisi, Matthew A. Sinclair, Benedikt Graf, David Vader
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Patent number: 11686572Abstract: The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.Type: GrantFiled: October 12, 2021Date of Patent: June 27, 2023Assignee: Ninepoint Medical, Inc.Inventors: Eman Namati, Muhammad Al-Qaisi, Matthew A. Sinclair, Benedikt Graf, David Vader
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Publication number: 20220192517Abstract: A method and system for detecting plaque and vessel constriction by processing intracoronary optical coherence tomography (IVOCT) pullback data performed by software executed on a computer. One example method includes inputting IVOCT pullback data from an imaging device, performing full semantic segmentation of the every image of the IVOCT pullback data with a frame-based segmentation module, generating a cross-sectional frame-based image of the every image of the segmented IVOCT pullback data with a cross-sectional display, and determining the presence of plaque and vessel constriction with an automated analysis application analyzing the cross-sectional frame-based images.Type: ApplicationFiled: December 23, 2020Publication date: June 23, 2022Inventors: David A. Vader, Ronny SHALEV, John LONG
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Publication number: 20220042784Abstract: The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.Type: ApplicationFiled: October 12, 2021Publication date: February 10, 2022Applicant: NINEPOINT MEDICAL, INC.Inventors: Eman Namati, Muhammad Al-Qaisi, Matthew A. Sinclair, Benedikt Graf, David Vader
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Patent number: 11175125Abstract: The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.Type: GrantFiled: December 2, 2019Date of Patent: November 16, 2021Assignee: NINEPOINT MEDICAL, INC.Inventors: Eman Namati, Muhammad Al-Qaisi, Matthew A. Sinclair, Benedikt Graf, David Vader
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Publication number: 20200103216Abstract: The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.Type: ApplicationFiled: December 2, 2019Publication date: April 2, 2020Inventors: Eman NAMATI, Muhammad AL-QAISI, Matthew A. SINCLAIR, Benedikt GRAF, David VADER
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Patent number: 10495442Abstract: The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.Type: GrantFiled: August 31, 2018Date of Patent: December 3, 2019Assignee: NinePoint Medical, Inc.Inventors: Eman Namati, Muhammad Al-Qaisi, Matthew A. Sinclair, Benedikt Graf, David Vader
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Patent number: 10184782Abstract: The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.Type: GrantFiled: May 15, 2014Date of Patent: January 22, 2019Assignee: NINEPOINT MEDICAL, INC.Inventors: Eman Namati, Muhammad Al-Qaisi, Matthew A. Sinclair, Benedikt Graf, David Vader
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Publication number: 20180372479Abstract: The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.Type: ApplicationFiled: August 31, 2018Publication date: December 27, 2018Inventors: Eman NAMATI, Muhammad AL-QAISI, Matthew A. SINCLAIR, Benedikt GRAF, David VADER
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Patent number: 9668638Abstract: A system for registering images is provided. The system includes a first imaging device having an imager positioned at a distal end thereof. The first image device is configured to produce a first image of a body cavity. The system includes an imaging system having a second imaging device having an imager positioned at a distal end thereof and configured to be positioned approximate to said imager of said first imaging device within said body cavity and configured to produce a second image. An elongated member having an outer surface is molded to include imaging markers such that said imaging markers are embedded within the outer surface. At least one of the image markers is configured to produce registration information in the first image and the second image.Type: GrantFiled: February 4, 2014Date of Patent: June 6, 2017Assignee: Ninepoint Medical Inc.Inventors: Shekhar Nimkar, David Vader, Jim Houskeeper
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Publication number: 20140340689Abstract: The present disclosure provides an OCT imaging system to reduce or eliminate frequency-domain aliasing artifacts. The frequency is shifted using a carrier frequency to define a sampling range substantially centered on the carrier frequency. An image of the sample is generated from a displayed imaging range that consists of a subset of the frequencies within the sampling range. Furthermore, the system may be configured to determine the carrier frequency such that a Nyquist frequency corresponding to the shifted frequency is extended beyond either an upper or a lower bound of an OCT quality envelope corresponding to the first portion of light. Additionally, the carrier frequency may be determined such that a lower bound of the OCT quality envelope is greater or less than a zero-frequency DC limit.Type: ApplicationFiled: May 15, 2014Publication date: November 20, 2014Inventors: Eman Namati, Muhammad Al-Kaisi, Matthew A. Sinclair, Benedikt Graf, David Vader
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Publication number: 20140309527Abstract: Multiple aperture, multiple modal optical systems and methods include at least one optical component positioned at a first position about a longitudinal axis; and at least two light sources connectable to the at least one optical component, wherein the multiple modal optical system is configured to transmit light from the at least two light sources in at least one direction transverse to the longitudinal axis and receive reflected light, and wherein the at least one optical component is configured to rotate about the longitudinal axis and translate along the longitudinal axis when connected to the at least two light sources.Type: ApplicationFiled: April 10, 2014Publication date: October 16, 2014Applicant: NinePoint Medical, Inc.Inventors: Eman Namati, Matthew A. Sinclair, David Vader, Ben Graf
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Publication number: 20140228636Abstract: A system for registering images is provided. The system includes a first imaging device having an imager positioned at a distal end thereof. The first image device is configured to produce a first image of a body cavity. The system includes an imaging system having a second imaging device having an imager positioned at a distal end thereof and configured to be positioned approximate to said imager of said first imaging device within said body cavity and configured to produce a second image. An elongated member having an outer surface is molded to include imaging markers such that said imaging markers are embedded within the outer surface. At least one of the image markers is configured to produce registration information in the first image and the second image.Type: ApplicationFiled: February 4, 2014Publication date: August 14, 2014Applicant: NinePoint Medical, Inc.Inventors: Shekhar Nimkar, David Vader, Jim Houskeeper