Patents by Inventor Daniel Gagnon

Daniel Gagnon 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: 20220307722
    Abstract: A ventilation unit includes a housing including a plurality of walls defining an interior space. The housing may be mounted to a structure, such as a cabinet, using a plurality of primary mounts. A mount is coupled to the housing to mount the housing to the structure. The mount may be used prior to installation of the primary mounts.
    Type: Application
    Filed: March 29, 2022
    Publication date: September 29, 2022
    Inventors: Martin Gagnon, Patrick Hébert, Alexandre Cloutier, Patrick Dumas, Daniel Bathalon, Sébastien Dubuc, Alexandre Gamache Veillette, Alain Ampleman
  • Publication number: 20220308564
    Abstract: Multicomponent module assembly by identifying a failed site on a laminate comprising a plurality of sites, adding a machine discernible mark associated with the failed site, placing an electrically good element at a successful site; and providing an MCM comprising the laminate, and the electrically good element.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 29, 2022
    Inventors: Kirk D. Peterson, Steven Paul Ostrander, Stephanie E Allard, Charles L. Reynolds, Sungjun Chun, Daniel M. Dreps, Brian W. Quinlan, Sylvain Pharand, Jon Alfred Casey, David Edward Turnbull, Pascale Gagnon, Jean Labonte, Jean-Francois Bachand, Denis Blanchard
  • Publication number: 20220279707
    Abstract: An apparatus having a support frame supports a tray actuation means, a pick up means and a conveyor assembly for feeding a transplanter with viable plants from a multi-celled tray is disclosed. The tray actuation means is configured to move the multi-celled tray along the support frame. The pick up means is configured to pick up the viable plants by their foliage from the multi-celled tray and leaving non-viable plants therein. The conveyor assembly includes receptacles for receiving one viable plant from the pick up means, and at least one sensor for detecting empty receptacles. A controller cooperatively operates the tray actuation means, the pick up means, and the conveyor assembly in order to skip empty receptacles for ensuring continuous feeding of the transplanter with viable plants. A gripper for picking up plants by their foliage is disclosed. A method for continuously feeding the transplanter with viable plants is disclosed.
    Type: Application
    Filed: October 14, 2021
    Publication date: September 8, 2022
    Inventors: Guillaume VERNER, Daniel GAGNON
  • Publication number: 20220257209
    Abstract: An x-ray imaging apparatus and associated methods are provided to execute multi-pass imaging scans for improved quality and workflow. An imaging scan can be segmented into multiple passes that are faster than the full imaging scan. Data received by an initial scan pass can be utilized early in the workflow and of sufficient quality for treatment setup, including while the another scan pass is executed to generate data needed for higher quality images, which may be needed for treatment planning. In one embodiment, a data acquisition and reconstruction technique is used when the detector is offset in the channel and/or axial direction for a large FOV during multiple passes.
    Type: Application
    Filed: May 2, 2022
    Publication date: August 18, 2022
    Applicant: Accuray, Inc.
    Inventors: Daniel Gagnon, Chuanyong Bai, Zhicong Yu
  • Patent number: 11413002
    Abstract: Multimodal imaging apparatus and methods include a rotatable gantry system with multiple sources of radiation comprising different energy levels (for example, kV and MV). Fast slip-ring technology and helical scans allow data from multiple sources of radiation to be combined or utilized to generate improved images and workflows, including for IGRT. Features include large field-of-view (LFOV) MV imaging, kV region-of-interest (ROI) imaging, and scalable field-of-view (SFOV) dual energy imaging.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: August 16, 2022
    Assignee: ACCURAY INC.
    Inventors: Daniel Gagnon, Zhicong Yu, Jacob Shea
  • Patent number: 11375970
    Abstract: A radiotherapy delivery device is provided. The device includes a source of therapeutic radiation and a first detector positioned to receive radiation from the source of therapeutic radiation. The device also includes a source of imaging radiation and a second detector positioned to receive radiation from the source of imaging radiation. A collimator assembly is positioned relative to the second source of radiation to selectively control a shape of a radiation beam emitted by the second radiation source to selectively expose part or the whole of the second radiation detector. A reconstruction processor can be operatively coupled to the detector and configured to generate patient images based on radiation received by the second detector from the second source of radiation. The device is configured to move from one imaging geometry to another using all or part of the second detector.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: July 5, 2022
    Assignee: Accuray, Inc.
    Inventors: Jacob Shea, Daniel Gagnon, Eric Schnarr, Edward Henry Chao, Petr Jordan, Calvin R. Maurer, Jr.
  • Patent number: 11364007
    Abstract: A method of scanning parameter optimization, which method may be useful with image-guided radiation therapy (IGRT), allows for controlling exposure of a beam from an x-ray source and/or controlling the detection mechanism for an x-ray detector of imaging radiation of a radiation-delivery device based on one or more parameters of a region of interest of a patient. The one or more parameters of the region of interest may include a dimension, outer contour, density, location relative to an outlet of the beam, location relative to isocenter, location to the whole patient body, etc. Exposure of the patient to the beam may be varied via modulation of one or more scanning parameters for controlling an aspect of the beam and/or the detector to provide for targeted and or reduced radiation exposure of the patient or portion of the patient, and/or for improved quality of guiding images. The modulation may be varied depending on a view angle of the region of interest from a portion of the radiation-delivery device.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: June 21, 2022
    Assignee: Accuray, Inc.
    Inventors: Zhicong Yu, Amit Jain, Daniel Gagnon, Jacob Shea
  • Patent number: 11357467
    Abstract: An x-ray imaging apparatus and associated methods are provided to execute multi-pass imaging scans for improved quality and workflow. An imaging scan can be segmented into multiple passes that are faster than the full imaging scan. Data received by an initial scan pass can be utilized early in the workflow and of sufficient quality for treatment setup, including while the another scan pass is executed to generate data needed for higher quality images, which may be needed for treatment planning. In one embodiment, a data acquisition and reconstruction technique is used when the detector is offset in the channel and/or axial direction for a large FOV during multiple passes.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: June 14, 2022
    Assignee: Accuray, Inc.
    Inventors: Daniel Gagnon, Chuanyong Bai, Zhicong Yu
  • Patent number: 11337668
    Abstract: A computed tomography (CT) system and method is provided. The CT system is used to carry out an image improvement method in which a prior or previously-acquired patient image can be used to supplement or otherwise improve an acquired CT image, wherein the acquired projection data representative of the acquired CT image might be truncated or otherwise incomplete/insufficient to accurately and stably recover the scanned object/patient.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: May 24, 2022
    Assignee: Accuray, Inc.
    Inventors: Zhicong Yu, Daniel Gagnon
  • Patent number: 11324471
    Abstract: An x-ray imaging apparatus and associated methods are provided to receive measured projection data in a primary region and measured scatter data in asymmetrical shadow regions and determine an estimated scatter in the primary region based on the measured scatter data in the shadow region(s). The asymmetric shadow regions can be controlled by adjusting the position of the beam aperture center on the readout area of the detector. Penumbra data may also be used to estimate scatter in the primary region.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: May 10, 2022
    Assignee: Accuray Inc.
    Inventors: Chuanyong Bai, Amit Jain, Daniel Gagnon, Zhicong Yu, Jacob Shea
  • Patent number: 11318329
    Abstract: Electromagnetic waves for an accelerating structure of the radiation delivery system are generated by a microwave source. The electromagnetic waves generated by the microwave source are adjusted by an energy adjuster to a first energy level. A kilovolt (kV) imaging beam is generated by the accelerating structure based on the first energy level. The electromagnetic waves generated by the magnetic source are adjusted by the energy adjuster to a second energy level. A megavolt (MV) treatment beam is generated by the accelerating structure based on the second energy level.
    Type: Grant
    Filed: July 19, 2021
    Date of Patent: May 3, 2022
    Assignee: Accuray Incorporated
    Inventors: Mark Trail, Steve Vanderet, Calvin R. Maurer, Daniel Gagnon
  • Patent number: 11224396
    Abstract: An x-ray imaging apparatus and associated methods are provided to receive measured projection data from a wide aperture scan of a wide axial region and a narrow aperture scan of a narrow axial region within the wide axial region and determine an estimated scatter in the wide axial region using an optimized scatter estimation technique. The optimized scatter estimation technique is based on the difference between the measured scatter in the narrow axial region and the estimated scatter in the narrow axial region. Kernel-based scatter estimation/correction techniques can be fitted to minimize the scatter difference in the narrow axial region and thereafter applying the fitted (optimized) kernel-based scatter estimation/correction to the wide axial region. Optimizations can occur in the projection data domain or the reconstruction domain. Iterative processes are also utilized.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: January 18, 2022
    Assignee: Accuray, Inc.
    Inventors: Daniel Gagnon, Chuanyong Bai, Zhicong Yu, Amit Jain, Calvin R. Maurer, Jr.
  • Publication number: 20220000443
    Abstract: A multimodal imaging apparatus, comprising a rotatable gantry system positioned at least partially around a patient support, a first source of radiation coupled to the rotatable gantry system, the first source of radiation configured for imaging radiation, a second source of radiation coupled to the rotatable gantry system, the second source of radiation configured for at least one of imaging radiation or therapeutic radiation, wherein the second source of radiation has an energy level more than the first source of radiation, and a second radiation detector coupled to the rotatable gantry system and positioned to receive radiation from the second source of radiation, and a processor configured to combine first measured projection data based on the radiation detected by the first detector with second measured projection data based on the radiation detected by the second detector, and reconstruct an image based on the combined data, wherein the reconstructing comprises at least one of correcting the second meas
    Type: Application
    Filed: September 20, 2021
    Publication date: January 6, 2022
    Applicant: Accuray, Inc.
    Inventors: Jacob Shea, Brandon Frederick, Eric Schnarr, Daniel Gagnon
  • Patent number: 11191511
    Abstract: An imaging apparatus and associated methods are provided to efficiently estimate scatter during multi-fraction treatments for improved quality and workflow. Estimated scatter from one fraction during a treatment course can be utilized during subsequent fractions, allowing for measurements with higher scatter-to-primary ratios. The quality of scatter estimates can be maintained, while workflow improves and dosage decreases. Scan configuration limits can be utilized to maintain a minimum level of scatter measurement quality. Patient information can be monitored to ensure that prior fraction scatter estimates are still applicable to current patient status.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: December 7, 2021
    Assignee: Accuray, Inc.
    Inventors: Zhicong Yu, Chuanyong Bai, Amit Jain, Daniel Gagnon, Jacob Shea, Wenli Wang, Calvin R. Maurer, Jr.
  • Patent number: 11179132
    Abstract: An x-ray imaging apparatus and associated methods are provided to process projection data from an offset detector during a helical scan, including view completion. The detector may be offset in the channel and/or axial direction. Projection data measured from a current view is combined with projection data measured from at least one conjugate view to reconstruct a target image. A two-dimensional aperture weighting scheme is used to address data redundancy.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: November 23, 2021
    Assignee: Accuray, Inc.
    Inventors: Zhicong Yu, Daniel Gagnon
  • Patent number: 11166690
    Abstract: An imaging apparatus and associated methods are provided to receive measured projection data in a primary region and correct for scatter by processing the imaging data as two separate components: non-scatter-corrected data and scatter-only data. Separate image processing (e.g., reconstruction) allows for the use of individualized data processing, including filters, suited to the source data, thereby focusing on specific aspects of the source data, including, for example, noise and artifact reduction, resolution, edge preservation, etc. Combining the separately processed data results in an optimized balance of these aspects with improved image quality.
    Type: Grant
    Filed: March 19, 2020
    Date of Patent: November 9, 2021
    Assignee: Accuray, Inc.
    Inventors: Chuanyong Bai, Zhicong Yu, Amit Jain, Daniel Gagnon
  • Patent number: 11160526
    Abstract: An x-ray imaging apparatus and associated methods are provided to receive measured projection data in a primary region and measured scatter data in a shadow region and determine an estimated scatter in the primary region during a current rotation based on the measured scatter data in the shadow region from a neighboring rotation. Coverage of the shadow region during the neighboring rotation overlaps the primary region during the current rotation. A beamformer is configured to adjust a shape of the radiation beam to create the primary and shadow regions on the detector, including an embodiment to follow the Tam-Danielson window during a helical scan.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: November 2, 2021
    Assignee: Accuray, Inc.
    Inventors: Zhicong Yu, Chuanyong Bai, Amit Jain, Daniel Gagnon
  • Patent number: 11154269
    Abstract: Multimodal imaging apparatus and methods include a rotatable gantry system with multiple sources of radiation comprising different energy levels (for example, kV and MV). Fast slip-ring technology and helical scans allow data from multiple sources of radiation to be combined or utilized to generate improved images and workflows, including for IGRT. Features include increasing the precision of spatial registrations between respective image sets to allow more precise radiation treatment delivery, reducing image artifacts (e.g., scatter, metal and beam hardening, image blur, motion, etc.), and utilization of dual energy imaging (e.g., for material separation and quantitative imaging, patient setup, online adaptive IGRT, etc.).
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: October 26, 2021
    Assignee: Accuray Inc.
    Inventors: Jacob Shea, Brandon Frederick, Eric Schnarr, Daniel Gagnon
  • Publication number: 20210290194
    Abstract: An imaging apparatus and associated methods are provided to receive measured projection data in a primary region and correct for scatter by processing the imaging data as two separate components: non-scatter-corrected data and scatter-only data. Separate image processing (e.g., reconstruction) allows for the use of individualized data processing, including filters, suited to the source data, thereby focusing on specific aspects of the source data, including, for example, noise and artifact reduction, resolution, edge preservation, etc. Combining the separately processed data results in an optimized balance of these aspects with improved image quality.
    Type: Application
    Filed: March 19, 2020
    Publication date: September 23, 2021
    Inventors: Chuanyong Bai, Zhicong Yu, Amit Jain, Daniel Gagnon
  • Publication number: 20200170601
    Abstract: An x-ray imaging apparatus and associated methods are provided to receive measured projection data from a wide aperture scan of a wide axial region and a narrow aperture scan of a narrow axial region within the wide axial region and determine an estimated scatter in the wide axial region using an optimized scatter estimation technique. The optimized scatter estimation technique is based on the difference between the measured scatter in the narrow axial region and the estimated scatter in the narrow axial region. Kernel-based scatter estimation/correction techniques can be fitted to minimize the scatter difference in the narrow axial region and thereafter applying the fitted (optimized) kernel-based scatter estimation/correction to the wide axial region. Optimizations can occur in the projection data domain or the reconstruction domain. Iterative processes are also utilized.
    Type: Application
    Filed: November 25, 2019
    Publication date: June 4, 2020
    Inventors: Daniel Gagnon, Chuanyong Bai, Zhicong Yu, Amit Jain, Calvin R. Maurer, JR.