Patents by Inventor Ramnada CHAV

Ramnada CHAV 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: 12702486
    Abstract: A system for sizing an implant for a patient pre-operatively comprises a processor unit. A non-transitory computer-readable memory may be communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for obtaining at least one radiographic patient image of at least one patient bone with a scale marker relative to the bone, the scale marker having a known geometry, setting a scale of the at least one radiographic patient image using the known geometry of the scale marker, generating a three-dimensional bone model representative of the at least one patient bone using the at least one radiographic patient image and the scale, identifying an implant size and/or an implant model using implant models and dimensions of the three-dimensional bone model based on said scale, and outputting the implant size and/or the implant model for the patient.
    Type: Grant
    Filed: December 11, 2024
    Date of Patent: August 11, 2026
    Assignee: ORTHOSOFT ULC
    Inventors: Jean-Sebastien Merette, Ramnada Chav
  • Publication number: 20260013945
    Abstract: A surgical assistance system includes a processing unit; and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for: obtaining a video feed of a surgical procedure and monitoring the surgical procedure from the video feed; detecting, from an image processing of the video feed, a condition requiring a deviation from the surgical procedure, the deviation being defined as being outside of a standard surgical flow; and outputting a recommendation of deviation by intra-operatively providing the recommendation to an operator of the surgical procedure.
    Type: Application
    Filed: September 18, 2025
    Publication date: January 15, 2026
    Inventors: Pierre COUTURE, Ramnada CHAV, Sebastien PARRATTE, Kevin UNGER
  • Publication number: 20250339217
    Abstract: A method or system for storing an instrument, such as in a sterile environment. For example, a surgical robotic system may include a surgical robotic arm and a sterilization unit enclosing the sterile environment and storing the instrument. A processor may be used to determine that the instrument is needed (e.g., during a surgical procedure or portion of a surgical procedure or for a future surgical procedure or portion of a future surgical procedure). The processor may provide access to the instrument.
    Type: Application
    Filed: July 14, 2025
    Publication date: November 6, 2025
    Inventors: Ramnada Chav, Pierre Couture
  • Patent number: 12453603
    Abstract: A system for creating at least one model of a bone and implanted implant comprises a processing unit; and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for: obtaining at least one image of at least part of a bone and of an implanted implant on the bone, the at least one image being patient specific, obtaining a virtual model of the implanted implant using an identity of the implanted implant, overlaying the virtual model of the implanted implant on the at least one image to determine a relative orientation of the implanted implant relative to the bone in the at least one image, and generating and outputting a current bone and implant model using the at least one image, the virtual model of the implanted implant and the overlaying.
    Type: Grant
    Filed: April 30, 2024
    Date of Patent: October 28, 2025
    Assignee: ORTHOSOFT ULC
    Inventors: Ramnada Chav, Jean-Sebastien Merette, Tin Nguyen, Karine Duval, Pierre Couture
  • Patent number: 12440274
    Abstract: A surgical assistance system includes a processing unit; and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for: obtaining a video feed of a surgical procedure and monitoring the surgical procedure from the video feed; detecting, from an image processing of the video feed, a condition requiring a deviation from the surgical procedure, the deviation being defined as being outside of a standard surgical flow; and outputting a recommendation of deviation by intra-operatively providing the recommendation to an operator of the surgical procedure.
    Type: Grant
    Filed: January 12, 2024
    Date of Patent: October 14, 2025
    Assignee: ORTHOSOFT ULC
    Inventors: Pierre Couture, Ramnada Chav, Sebastien Parratte, Kevin Unger
  • Patent number: 12376919
    Abstract: A method or system for storing an instrument, such as in a sterile environment. For example, a surgical robotic system may include a surgical robotic arm and a sterilization unit enclosing the sterile environment and storing the instrument. A processor may be used to determine that the instrument is needed (e.g., during a surgical procedure or portion of a surgical procedure or for a future surgical procedure or portion of a future surgical procedure). The processor may provide access to the instrument.
    Type: Grant
    Filed: July 15, 2021
    Date of Patent: August 5, 2025
    Assignee: Orthosoft ULC
    Inventors: Ramnada Chav, Pierre Couture
  • Publication number: 20250099185
    Abstract: A system for sizing an implant for a patient pre-operatively comprisies a processor unit. A non-transitory computer-readable memory may be communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for obtaining at least one radiographic patient image of at least one patient bone with a scale marker relative to the bone, the scale marker having a known geometry, setting a scale of the at least one radiographic patient image using the known geometry of the scale marker, generating a three-dimensional bone model representative of the at least one patient bone using the at least one radiographic patient image and the scale, identifying an implant size and/or an implant model using implant models and dimensions of the three-dimensional bone model based on said scale, and outputting the implant size and/or the implant model for the patient.
    Type: Application
    Filed: December 11, 2024
    Publication date: March 27, 2025
    Inventors: Jean-Sebastien MERETTE, Ramnada CHAV
  • Patent number: 12201368
    Abstract: A system for sizing an implant for a patient pre-operatively comprises a processor unit. A non-transitory computer-readable memory may be communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for obtaining at least one radiographic patient image of at least one patient bone with a scale marker relative to the bone, the scale marker having a known geometry, setting a scale of the at least one radiographic patient image using the known geometry of the scale marker, generating a three-dimensional bone model representative of the at least one patient bone using the at least one radiographic patient image and the scale, identifying an implant size and/or an implant model using implant models and dimensions of the three-dimensional bone model based on said scale, and outputting the implant size and/or the implant model for the patient.
    Type: Grant
    Filed: February 8, 2023
    Date of Patent: January 21, 2025
    Assignee: ORTHOSOFT ULC
    Inventors: Jean-Sebastien Merette, Ramnada Chav
  • Publication number: 20250017687
    Abstract: A surgical helmet assembly securable to a XR device can include a frame, a surgical hood, a cooling system, and a controller. The frame can be securable to the XR device. The surgical hood can be connected to the frame and can be configured to cover at least a portion of a head of a user. The cooling system can be connected to the frame and can be locatable at least partially within the surgical hood. The cooling system can be operable to deliver an air stream to the frame, the XR device, and the surgical hood. The controller can be connected to the frame and in communication with the XR device and the cooling system. The controller can be configured to: receive a cooling system adjustment command from the user, and adjust the cooling system based on the cooling system adjustment command.
    Type: Application
    Filed: July 8, 2024
    Publication date: January 16, 2025
    Inventors: Ramnada Chav, Pierre Antoine Vidal
  • Publication number: 20240350200
    Abstract: A system for creating at least one model of a bone and implanted implant comprises a processing unit; and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for: obtaining at least one image of at least part of a bone and of an implanted implant on the bone, the at least one image being patient specific, obtaining a virtual model of the implanted implant using an identity of the implanted implant, overlaying the virtual model of the implanted implant on the at least one image to determine a relative orientation of the implanted implant relative to the bone in the at least one image, and generating and outputting a current bone and implant model using the at least one image, the virtual model of the implanted implant and the overlaying.
    Type: Application
    Filed: April 30, 2024
    Publication date: October 24, 2024
    Inventors: Ramnada CHAV, Jean-Sebastien MERETTE, Tin NGUYEN, Karine DUVAL, Pierre COUTURE
  • Patent number: 11998280
    Abstract: A system for creating at least one model of a bone and implanted implant comprises a processing unit; and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for: obtaining at least one image of at least part of a bone and of an implanted implant on the bone, the at least one image being patient specific, obtaining a virtual model of the implanted implant using an identity of the implanted implant, overlaying the virtual model of the implanted implant on the at least one image to determine a relative orientation of the implanted implant relative to the bone in the at least one image, and generating and outputting a current bone and implant model using the at least one image, the virtual model of the implanted implant and the overlaying.
    Type: Grant
    Filed: January 13, 2023
    Date of Patent: June 4, 2024
    Assignee: ORTHOSOFT ULC
    Inventors: Ramnada Chav, Jean-Sebastien Merette, Tin Nguyen, Karine Duval, Pierre Couture
  • Publication number: 20240148439
    Abstract: A surgical assistance system includes a processing unit; and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for: obtaining a video feed of a surgical procedure and monitoring the surgical procedure from the video feed; detecting, from an image processing of the video feed, a condition requiring a deviation from the surgical procedure, the deviation being defined as being outside of a standard surgical flow; and outputting a recommendation of deviation by intra-operatively providing the recommendation to an operator of the surgical procedure.
    Type: Application
    Filed: January 12, 2024
    Publication date: May 9, 2024
    Inventors: Pierre COUTURE, Ramnada CHAV, Sebastien PARRATTE, Kevin UNGER
  • Patent number: 11903652
    Abstract: A surgical assistance system includes a processing unit; and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for: obtaining a video feed of a surgical procedure and monitoring the surgical procedure from the video feed; detecting, from an image processing of the video feed, a condition requiring a deviation from the surgical procedure, the deviation being defined as being outside of a standard surgical flow; and outputting a recommendation of deviation by intra-operatively providing the recommendation to an operator of the surgical procedure.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: February 20, 2024
    Assignee: ORTHOSOFT ULC
    Inventors: Pierre Couture, Ramnada Chav, Sebastien Parratte, Kevin Unger
  • Publication number: 20230181259
    Abstract: A system for sizing an implant for a patient pre-operatively comprisies a processor unit. A non-transitory computer-readable memory may be communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for obtaining at least one radiographic patient image of at least one patient bone with a scale marker relative to the bone, the scale marker having a known geometry, setting a scale of the at least one radiographic patient image using the known geometry of the scale marker, generating a three-dimensional bone model representative of the at least one patient bone using the at least one radiographic patient image and the scale, identifying an implant size and/or an implant model using implant models and dimensions of the three-dimensional bone model based on said scale, and outputting the implant size and/or the implant model for the patient.
    Type: Application
    Filed: February 8, 2023
    Publication date: June 15, 2023
    Inventors: Jean-Sebastien MERETTE, Ramnada CHAV
  • Publication number: 20230172667
    Abstract: A system for creating at least one model of a bone and implanted implant comprises a processing unit; and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for: obtaining at least one image of at least part of a bone and of an implanted implant on the bone, the at least one image being patient specific, obtaining a virtual model of the implanted implant using an identity of the implanted implant, overlaying the virtual model of the implanted implant on the at least one image to determine a relative orientation of the implanted implant relative to the bone in the at least one image, and generating and outputting a current bone and implant model using the at least one image, the virtual model of the implanted implant and the overlaying.
    Type: Application
    Filed: January 13, 2023
    Publication date: June 8, 2023
    Inventors: Ramnada CHAV, Jean-Sebastien MERETTE, Tin NGUYEN, Karine DUVAL, Pierre COUTURE
  • Patent number: 11583341
    Abstract: A system for sizing an implant for a patient pre-operatively comprises a processor unit. A non-transitory computer-readable memory may be communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for obtaining at least one radiographic patient image of at least one patient bone with a scale marker relative to the bone, the scale marker having a known geometry, setting a scale of the at least one radiographic patient image using the known geometry of the scale marker, generating a three-dimensional bone model representative of the at least one patient bone using the at least one radiographic patient image and the scale, identifying an implant size and/or an implant model using implant models and dimensions of the three-dimensional bone model based on said scale, and outputting the implant size and/or the implant model for the patient.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: February 21, 2023
    Assignee: ORTHOSOFT ULC
    Inventors: Jean-Sebastien Merette, Ramnada Chav
  • Patent number: 11576725
    Abstract: A system for creating at least one model of a bone and implanted implant comprises a processing unit; and a non-transitory computer-readable memory communicatively coupled to the processing unit and comprising computer-readable program instructions executable by the processing unit for: obtaining at least one image of at least part of a bone and of an implanted implant on the bone, the at least one image being patient specific, obtaining a virtual model of the implanted implant using an identity of the implanted implant, overlaying the virtual model of the implanted implant on the at least one image to determine a relative orientation of the implanted implant relative to the bone in the at least one image, and generating and outputting a current bone and implant model using the at least one image, the virtual model of the implanted implant and the overlaying.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: February 14, 2023
    Assignee: ORTHOSOFT ULC
    Inventors: Ramnada Chav, Jean-Sebastien Merette, Tin Nguyen, Karine Duval, Pierre Couture
  • Publication number: 20220015841
    Abstract: A method or system for storing an instrument, such as in a sterile environment. For example, a surgical robotic system may include a surgical robotic arm and a sterilization unit enclosing the sterile environment and storing the instrument. A processor may be used to determine that the instrument is needed (e.g., during a surgical procedure or portion of a surgical procedure or for a future surgical procedure or portion of a future surgical procedure). The processor may provide access to the instrument.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 20, 2022
    Inventors: Ramnada Chav, Pierre Couture
  • Publication number: 20220020219
    Abstract: A method or system for using an augmented reality device may include displaying information in a surgical field. A method may include receiving an indication of a location of a landmark on a bone of a patient, retrieving a planned location of the landmark on the bone of the patient and receiving information corresponding to the location or the planned location. The location or the planned location may be displayed as a virtual indication using an augmented reality display of the augmented reality device, for example while permitting the surgical field to be viewed through the augmented reality display.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 20, 2022
    Inventors: Ramnada Chav, Pierre Couture
  • Publication number: 20210177526
    Abstract: A method for spine tracking in computer-assisted surgery, the method includes: obtaining, at a computer-assisted surgical system, at least one image of at least part of the spine and at least one surgical device; determining, at the computer-assisted surgical system, a three-dimensional position and orientation of the at least one surgical device relative to the spine from the at least one image to create a referential system; tracking, at the computer-assisted surgical system, the at least one surgical device altering a first vertebra of the spine for attachment of a spinal screw to the first vertebra, in the referential system; and tracking, at the computer-assisted surgical system, the spine in the referential system with a trackable reference attached to the spinal screw of the first vertebra.
    Type: Application
    Filed: December 16, 2020
    Publication date: June 17, 2021
    Inventors: Andreanne GOYETTE, Ramnada CHAV, Karine DUVAL