Patents by Inventor Louis-Philippe Amiot

Louis-Philippe Amiot 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: 20190307509
    Abstract: A CAS system and method for guiding an operator in inserting a femoral implant in a femur as a function of a limb length and orientation of the femoral implant with respect to the femur, comprising a reference tool for the femur, a registration tool, a bone altering tool and a sensing apparatus.
    Type: Application
    Filed: January 16, 2019
    Publication date: October 10, 2019
    Inventors: Herbert Andre JANSEN, Louis-Philippe AMIOT, Isabelle FONTAINE, Sebastien JUTRAS, Daniel ODERMATT, Benoit PELLETIER
  • Patent number: 10405873
    Abstract: A surface digitizing tool has a film of micro-sensor elements, with each micro-sensor element related in a network affected by a shape of the film. The film is flexible to conform to a shape of a selected surface of an object. A processing unit receives signals from the micro-sensor elements of the network. The processing unit has a model generator producing a model of the selected surface of the object from the signals of the network of resistive elements. A positioning frame aligns a position and orientation of a drilling tool with respect to a bone element.
    Type: Grant
    Filed: August 3, 2007
    Date of Patent: September 10, 2019
    Assignee: ORTHOSOFT ULC
    Inventors: Louis-Philippe Amiot, Eric Szmutny, Louis Malette
  • Publication number: 20190254682
    Abstract: A computer-assisted surgery system for guiding alterations to a bone, comprises a trackable member secured to the bone. The trackable member has a first inertial sensor unit producing orientation-based data. A positioning block is secured to the bone, and is adjustable once the positioning block is secured to the bone to be used to guide tools in altering the bone. The positioning block has a second inertial sensor unit producing orientation-based data. A processing system providing an orientation reference associating the bone to the trackable member comprises a signal interpreter for determining an orientation of the trackable member and of the positioning block. A parameter calculator calculates alteration parameters related to an actual orientation of the positioning block with respect to the bone.
    Type: Application
    Filed: March 5, 2019
    Publication date: August 22, 2019
    Inventors: Louis-Philippe AMIOT, Alain RICHARD, Yannick BOUTIN, Joel ZUHARS, Yonik BRETON, Karine DUVAL, Herbert Andre JANSEN, Benoit PELLETIER, Catherine PROULX, Myriam VALIN
  • Publication number: 20190239901
    Abstract: Examples of robotically controlled planar cutting systems and methods for controlling cutting systems to prepare bone tissue in surgical procedures, are generally described herein. Applicable surgical procedures for the robotically controlled cutting systems and methods include procedures involving the preparation (e.g., removal, surfacing) of bone tissue, such as is performed in knee arthroplasties. In an example, a robotically controlled planar cutting system can include a housing, a cutting element disposed in the housing, and a cutting control mechanism in communication with a robotic controller to control operation of the cutting element to machine a planar surface. The cutting element can be exposed and retracted relative to the housing and can include a plurality of cutting implements arranged to machine the planar surface.
    Type: Application
    Filed: February 1, 2019
    Publication date: August 8, 2019
    Inventors: Pierre COUTURE, Louis-Philippe AMIOT
  • Patent number: 10251653
    Abstract: A computer-assisted surgery system for guiding alterations to a bone, comprises a trackable member secured to the bone. The trackable member has a first inertial sensor unit producing orientation-based data. A positioning block is secured to the bone, and is adjustable once the positioning block is secured to the bone to be used to guide tools in altering the bone. The positioning block has a second inertial sensor unit producing orientation-based data. A processing system providing an orientation reference associating the bone to the trackable member comprises a signal interpreter for determining an orientation of the trackable member and of the positioning block. A parameter calculator calculates alteration parameters related to an actual orientation of the positioning block with respect to the bone.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: April 9, 2019
    Assignee: ORTHOSOFT INC.
    Inventors: Louis-Philippe Amiot, Alain Richard, Yannick Boutin, Joel Zuhars, Yonik Breton, Karine Duval, Herbert Andre Jansen, Benoit Pelletier, Catherine Proulx, Myriam Valin
  • Publication number: 20190069907
    Abstract: A method tracks a tool with respect to a bone in computer-assisted surgery. A reference tracker with a MEMS unit is secured to the bone. The tracker outputs data relating to its orientation. A tool provided with a MEMS unit and secured to the bone is preset with an initial orientation. The tool outputs tracking data related to orientation of the tool once initialized. A trackable frame of reference relating the bone to the orientation of the tracker is created. The MEMS unit of the tool is initialized. A relation between the initial orientation of the tool and the orientation of the tracker at initialization of the MEMS unit of the tool is recorded. Orientational data of the tool relative to the frame of reference of the bone calculated using the relation is displayed. A computer-assisted surgery system for tracking a tool with respect to a bone after an initialization of a MEMS unit is also described.
    Type: Application
    Filed: August 13, 2018
    Publication date: March 7, 2019
    Inventors: Louis-Philippe AMIOT, Pierre COUTURE, Catherine PROULX, Trong Tin NGUYEN, Myriam VALIN
  • Patent number: 10219865
    Abstract: A CAS system and method for guiding an operator in inserting a femoral implant in a femur as a function of a limb length and orientation of the femoral implant with respect to the femur, comprising a reference tool for the femur, a registration tool, a bone altering tool and a sensing apparatus.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: March 5, 2019
    Assignee: ORTHOSOFT INC.
    Inventors: Herbert Andre Jansen, Louis-Philippe Amiot, Isabelle Fontaine, Sebastien Jutras, Daniel Odermatt, Benoit Pelletier
  • Publication number: 20190053859
    Abstract: Systems and methods may be used to perform robot-aided surgery. A system may include a robotic controller to monitor a position and orientation of an end effector coupled to an end of a robotic arm. The robotic controller may apply a force to a bone using the end effector, such as via a soft tissue balancing component. The robotic controller may determine soft tissue balance using information from a tracking system, such as a position of a first tracker affixed to the bone. The soft tissue balance may be output, such as to a display device.
    Type: Application
    Filed: October 22, 2018
    Publication date: February 21, 2019
    Inventors: Pierre Couture, Alain Richard, Olivier Boisvert, Emily Gogarty, Louis-Philippe Amiot, Sebastien Parratte, Di Li
  • Patent number: 10136952
    Abstract: Systems and methods may be used to perform robot-aided surgery. A system may include a robotic controller to monitor a position and orientation of an end effector coupled to an end of a robotic arm. The robotic controller may apply a force to a bone using the end effector, such as via a soft tissue balancing component. The robotic controller may determine soft tissue balance using information from a tracking system, such as a position of a first tracker affixed to the bone. The soft tissue balance may be output, such as to a display device.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: November 27, 2018
    Assignee: Zimmer, Inc.
    Inventors: Pierre Couture, Alain Richard, Olivier Boisvert, Emily Gogarty, Louis-Philippe Amiot, Sebastien Parratte, Di Li
  • Patent number: 10124124
    Abstract: A method for assisting subchondral injection comprising creating a model of bone and soft tissue of a patient. At least one void is modeled in the bone from the model of bone and soft tissue. An injection site is identified from the model of bone and soft tissue and modeling of the at least one void. Data is output for guiding at least in the locating of the injection site and drilling of the bone to reach the void. A patient-specific jig for subchondral injection may be created based on the injection site location.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: November 13, 2018
    Assignee: ZIMMER, INC.
    Inventors: Pierre Couture, Louis-Philippe Amiot, Laurence Mercier
  • Publication number: 20180289425
    Abstract: Systems and methods for determining position and orientation of a bone of an anatomical feature are described. These include the use of a wearable holder configured to be mounted about an outer-skin surface of the anatomical feature, such that the anatomical feature and the bone are positioned in fixed relation with respect to the wearable holder when the wearable holder is mounted about the anatomical feature. Reference marker arrays are fixedly mounted to the wearable holder, each being positioned on the wearable holder to identify a landmark of the bone within the wearable holder when the wearable holder is mounted to the anatomical feature. The position and orientation of the reference markers are trackable to determine position and orientation of the wearable holder in a reference coordinate system, thereby enabling position and orientation of the landmarks on the bone to be determined.
    Type: Application
    Filed: April 6, 2018
    Publication date: October 11, 2018
    Inventors: Di LI, Louis-Philippe AMIOT, Pierre COUTURE
  • Patent number: 10092218
    Abstract: A pelvic digitizer device has a body defined by a shaft having a tooling end and a handle end with a handle for being manipulated. A visual guide is oriented in a reference plane of the digitizer device. A cup is connected to the tooling end and adapted to be received in an acetabulum of a patient. An inertial sensor unit is connected to the body, the inertial sensor unit having a preset orientation aligned with the reference plane.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: October 9, 2018
    Assignee: ORTHOSOFT, INC.
    Inventors: Di Li, Louis-Philippe Amiot, Don Dye, Myriam Valin, Isabelle Robitaille, Francois Paradis, Karine Duval, Yonik Breton, Simon Ferron-Forget
  • Patent number: 10070869
    Abstract: A method tracks a tool with respect to a bone in computer-assisted surgery. A reference tracker with a MEMS unit is secured to the bone. The tracker outputs data relating to its orientation. A tool provided with a MEMS unit and secured to the bone is preset with an initial orientation. The tool outputs tracking data related to orientation of the tool once initialized. A trackable frame of reference relating the bone to the orientation of the tracker is created. The MEMS unit of the tool is initialized. A relation between the initial orientation of the tool and the orientation of the tracker at initialization of the MEMS unit of the tool is recorded. Orientational data of the tool relative to the frame of reference of the bone calculated using the relation is displayed. A computer-assisted surgery system for tracking a tool with respect to a bone after an initialization of a MEMS unit is also described.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: September 11, 2018
    Assignee: ORTHOSOFT INC.
    Inventors: Louis-Philippe Amiot, Pierre Couture, Catherine Proulx, Trong Tin Nguyen, Myriam Valin
  • Publication number: 20180250144
    Abstract: A method for assisting in positioning the acetabular cup comprises orienting a cup positioning instrument with a cup thereon in an initial reference orientation relative to an acetabulum of a pelvis with the cup forming a joint with the acetabulum, the cup positioning instrument comprising an inertial sensor unit with pre-planned orientation data for a desired cup orientation based on at least one landmark of the pelvis, The cup positioning instrument is rotated to a desired abduction angle as guided by an interface of the cup positioning instrument, based on movements relative to at least one landmark. The cup positioning instrument is rotated to a desired anteversion angle as guided by the interface of the cup positioning instrument, based on movements relative to the at least one landmark. Upon reaching the desired cup orientation as indicated by the interface, the cup is impacted into the acetabulum.
    Type: Application
    Filed: May 2, 2018
    Publication date: September 6, 2018
    Inventors: Di LI, Louis-Philippe AMIOT, Herbert Andre JANSEN, Francois PARADIS, Isabelle ROBITAILLE, Bruno FALARDEAU, Karine DUVAL, Myriam VALIN, Yvan LEONE, Yonik BRETON, Benoit PELLETIER, Mathieu CHEVRIER, Jerome CASAUBON
  • Publication number: 20180235715
    Abstract: A system for tracking at least one bone in robotized computer-assisted surgery, 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 backscatter images of the at least one bone from a tracking device in a coordinate system; generating a three-dimensional geometry of a surface of the at least one bone from the backscatter images, the three-dimensional geometry of the surface being in the coordinate system; determining a position and orientation of the at least one bone in the coordinate system by matching the three-dimensional geometry of the surface of the at least one bone to a three-dimensional model of the bone; controlling an automated robotized variation of at least one of a position and orientation of the tracking device as a function of a processing of the backscatter images; and continuously outputting the position and orientation of
    Type: Application
    Filed: February 22, 2018
    Publication date: August 23, 2018
    Inventors: Louis-Philippe AMIOT, Pierre COUTURE
  • Patent number: 9987148
    Abstract: A method for assisting in positioning the acetabular cup comprises orienting a cup positioning instrument with a cup thereon in an initial reference orientation relative to an acetabulum of a pelvis with the cup forming a joint with the acetabulum, the cup positioning instrument comprising an inertial sensor unit with pre-planned orientation data for a desired cup orientation based on at least one landmark of the pelvis, The cup positioning instrument is rotated to a desired abduction angle as guided by an interface of the cup positioning instrument, based on movements relative to at least one landmark. The cup positioning instrument is rotated to a desired anteversion angle as guided by the interface of the cup positioning instrument, based on movements relative to the at least one landmark. Upon reaching the desired cup orientation as indicated by the interface, the cup is impacted into the acetabulum.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: June 5, 2018
    Assignee: ORTHOSOFT INC.
    Inventors: Di Li, Louis-Philippe Amiot, Herbert Jansen, Francois Paradis, Isabelle Robitaille, Bruno Falardeau, Karine Duval, Myriam Valin, Yvan Leone, Yonik Breton, Benoit Pelletier, Jerome Casaubon, Mathieu Chevrier
  • Patent number: 9987021
    Abstract: A method for determining a mechanical axis of a tibia using a tibial digitizer is disclosed. The method includes: determining an upper reference point on a tibial plateau corresponding to an entry point of the mechanical axis; fastening an upper mounting end of the tibial digitizer to the tibial plateau at the upper reference point; and fastening a lower mounting end of the tibial digitizer to medial and lateral malleoli of the ankle, by inwardly displacing opposed caliper arms of a self-centering malleoli engaging mechanism toward each other in a common plane until the caliper arms abut the malleoli. A lower reference point located at a midpoint between the medial and lateral malleoli is then determined by identifying a corresponding midpoint between the caliper arms when they are clamped onto the medial and lateral malleoli.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: June 5, 2018
    Assignee: ORTHOSOFT INC.
    Inventors: Benoit Pelletier, Karine Duval, Trong Tin Nguyen, Pierre Couture, Louis-Philippe Amiot, Yannick Boutin, Alain Richard, Catherine Proulx
  • Publication number: 20180147016
    Abstract: A system for tracking a femoral frame of reference in computer-assisted surgery comprises a sensor unit. The sensor unit is adapted to be secured to the femur. The sensor unit comprises accelerometer and gyroscope sensors that produce orientation data. A processing unit receives gyroscope and accelerometer data. The processing unit comprises a gyroscope-data calculator to provide calculated acceleration data resulting from movements of the femur, an accelerometer-data calculator to calculate measured acceleration data resulting from movements of the femur, and an acceleration comparator to relate an orientation of the sensor unit to the femur to define a femoral frame of reference. The femoral frame of reference is defined from the comparison between the calculated and the measured acceleration data. A sensor orientation interface provides orientation data for the femur from a tracking of the femoral frame of reference. A method for tracking a femoral frame of reference is also provided.
    Type: Application
    Filed: January 26, 2018
    Publication date: May 31, 2018
    Inventors: Myriam VALIN, Catherine PROULX, Louis-Philippe AMIOT, Bruno FALARDEAU, Julie DESLONGCHAMPS
  • Patent number: 9918658
    Abstract: An assembly of a patient specific instrument and tracking system comprises a patient specific instrument having a body with a patient specific contact surface negatively shaped relative to a corresponding surface of a bone for complementary contact therewith. An inertial sensor unit with a preset orientation is connected to the body in a planned connection configuration, such that a geometrical relation between the contact surface and the inertial sensor unit is known. A tracking system has a tracking processor connected to the inertial sensor unit, a user interface, and bone orientation data related to the patient specific contact surface, the tracking processor producing orientation tracking data for the bone using the geometrical relation and the bone orientation data when the preset orientation of the inertial sensor unit is initialized, to output the orientation tracking data on the user interface.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: March 20, 2018
    Assignee: ORTHOSOFT INC.
    Inventors: Jeffrey A. McCaulley, Louis-Philippe Amiot
  • Patent number: 9901405
    Abstract: A system for tracking a femoral frame of reference in computer-assisted surgery comprises a sensor unit. The sensor unit is adapted to be secured to the femur. The sensor unit comprises accelerometer and gyroscope sensors that produce orientation data. A processing unit receives gyroscope and accelerometer data. The processing unit comprises a gyroscope-data calculator to provide calculated acceleration data resulting from movements of the femur, an accelerometer-data calculator to calculate measured acceleration data resulting from movements of the femur, and an acceleration comparator to relate an orientation of the sensor unit to the femur to define a femoral frame of reference. The femoral frame of reference is defined from the comparison between the calculated and the measured acceleration data. A sensor orientation interface provides orientation data for the femur from a tracking of the femoral frame of reference. A method for tracking a femoral frame of reference is also provided.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: February 27, 2018
    Assignee: ORTHOSOFT INC.
    Inventors: Myriam Valin, Catherine Proulx, Louis-Philippe Amiot, Bruno Falardeau, Julie Deslongchamps