Patents by Inventor Mark Ellsworth

Mark Ellsworth 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: 20220257334
    Abstract: A clamp assembly fixes a navigation tracker to a bone. The assembly includes first and second clamp jaws. The second clamp jaw is pivotal about a first fixed pivot. A linear driver includes a shaft. A first linkage is pivotal at one end about a second fixed pivot and coupled at an opposing end to the shaft at a first moving pivot. A second linkage is coupled at one end to the shaft at the first moving pivot and coupled at the other end to the second clamp jaw at a second moving pivot. The linear driver linearly translates the shaft to apply force to the first moving pivot in a first direction to pivot the second clamp jaw towards the first clamp jaw and in a second direction opposite to the first direction to pivot the second clamp jaw away from the first clamp jaw.
    Type: Application
    Filed: February 16, 2022
    Publication date: August 18, 2022
    Applicant: MAKO Surgical Corp.
    Inventors: Matthew Joseph Guthart, Mark Ellsworth Nadzadi, Andrew Jacob Nelson
  • Publication number: 20220132827
    Abstract: A self-leveling crop spraying apparatus is carried by a prime mover, The crop spraying apparatus includes first and second masts, and first and second opposed pendulum arm frame members slidingly engaged to the fast and second masts. A pendulum arm extends through the first and second opposed pendulum arm frame members. The first and second pendulum assemblies are coupled to opposed ends of the pendulum arm, and a carriage assembly is carried by the first and second pendulum assemblies. The carriage assembly is rotatable relative to the first and second masts and first and second opposed pendulum arm frame members.
    Type: Application
    Filed: January 12, 2022
    Publication date: May 5, 2022
    Inventor: Mark ELLSWORTH
  • Publication number: 20220022994
    Abstract: Systems, methods and software are provided for aiding in positioning of objects in a surgical environment. A tracker is rigidly affixed to a surgical object. A camera has a field of view and senses positions of the tracker in the field of view. Controller(s) provide a zone positioned within the field of view at a location that is static relative to the field of view such that the zone is located independent of the sensed positions of the tracker. The zone defines a range of acceptable positions for the tracker relative to a position of the camera. Controller(s) acquire positions of the tracker as the surgical object is moved throughout a range of motion and enable evaluation of the positions of the tracker throughout the range of motion relative to the zone to aid in positioning of one or more of: the camera, the tracker, or the surgical object.
    Type: Application
    Filed: October 7, 2021
    Publication date: January 27, 2022
    Applicant: MAKO Surgical Corp.
    Inventors: Jason Karl Otto, Matthew Thompson, Mark Ellsworth Nadzadi, Roberto Montane, Jonathan Morgan, Bojan Gospavic
  • Patent number: 11166781
    Abstract: Systems, methods and software are provided for aiding in positioning of a camera relative to objects in a surgical environment. The camera has a 3D field of view and senses positions of the objects in the field of view. A controller is coupled to the camera and defines a first zone and a second zone within the field of view. Each zone defines a range of acceptable positions for one of the objects relative to a position of the camera. The controller receives the position of the objects. A graphical user interface displays image representations of: the field of view, the first zone relative to the field of view, the second zone relative to the field of view, the position of one object relative to the first zone, and the position of another object relative to the second zone.
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: November 9, 2021
    Assignee: MAKO Surgical Corp.
    Inventors: Jason Karl Otto, Matthew Thompson, Mark Ellsworth Nadzadi, Roberto Montane, Jonathan Morgan, Bojan Gospavic
  • Publication number: 20210322177
    Abstract: A femoral prosthetic component includes a patellar guide portion, a pair of condyles projecting from the guide portion and forming an intercondylar notch therebetween, a bearing surface, and an interface surface configured to face a resected surface of a femur. The interface surface comprises an anterior face and a posterior face, and is substantially contoured between the anterior and posterior face to match a contoured surface of the femur. The substantially contoured interface surface may include at least one planar surface portion to about a flat cut portion in the surface of the femur. This planar surface portion may be a distal flat at a distal face of the interface surface. The contoured interface surface may alternatively include a plurality of planar surface portions. The femoral prosthetic component is configured such that preparation of the bone to match the interface surface results in minimal resection of the distal femur.
    Type: Application
    Filed: June 28, 2021
    Publication date: October 21, 2021
    Inventors: Mark Ellsworth Nadzadi, Jason Karl Otto, Amit Mistry
  • Publication number: 20210282872
    Abstract: A robotic system for preparing a bone to repair a bone fracture, includes a controllable guide structure configured to guide preparation of at least one bone piece during execution of a surgical plan and a control system configured to define the surgical plan. Defining the surgical plan includes determining a desired relationship between at least a first bone piece and a second bone piece that are separated by the bone fracture and planning preparation of the first bone piece to include a prepared anatomical structure configured to align the first bone piece with the second bone piece such that when aligned, the first bone piece and the second bone piece will achieve the desired relationship. The control system is further configured to control the controllable guide structure according to the surgical plan.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 16, 2021
    Applicant: MAKO Surgical Corp.
    Inventors: Scott David Nortman, Amit Mistry, Jason K. Otto, Robert Van Vorhis, Mark Ellsworth Nadzadi, Miranda Jamieson
  • Patent number: 11078772
    Abstract: A drilling system and method for monitoring drilling parameters for an underground drilling operation.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: August 3, 2021
    Assignee: APS Technology, Inc.
    Inventors: Mark Ellsworth Wassell, Rudolph Popeszku
  • Patent number: 11065067
    Abstract: A robotic system for preparing a bone to repair a bone fracture, includes a controllable guide structure configured to guide preparation of at least one bone piece during execution of a surgical plan and a control system configured to define the surgical plan. Defining the surgical plan includes determining a desired relationship between at least a first bone piece and a second bone piece that are separated by the bone fracture and planning preparation of the first bone piece to include a prepared anatomical structure configured to align the first bone piece with the second bone piece such that when aligned, the first bone piece and the second bone piece will achieve the desired relationship. The control system is further configured to control the controllable guide structure according to the surgical plan.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: July 20, 2021
    Assignee: MAKO Surgical Corp.
    Inventors: Scott David Nortman, Amit Mistry, Jason K. Otto, Robert Van Vorhis, Mark Ellsworth Nadzadi, Miranda Jamieson
  • Patent number: 10743889
    Abstract: Methods and apparatus for performing knee arthroplasty, including, but not limited to, bicruciate retaining knee arthroplasty, ore described herein. Methods and apparatus for preparing a distal femur for a femoral implant as well as methods and apparatus for preparing a proximal tibia for a tibial implant are described. These methods and apparatus, in at least some embodiments and uses, facilitate decreasing the complexity of knee arthroplasty procedures such as bicruciate retaining procedures, while maintaining, if not improving on, the safety, accuracy and/or effectiveness of such procedures.
    Type: Grant
    Filed: June 8, 2018
    Date of Patent: August 18, 2020
    Assignee: Smith & Nephew, Inc.
    Inventors: Zachary Christopher Wilkinson, Brian William McKinnon, Jeffrey Andrew Sharp, Katherine S. Anderson, Christopher F. Scifert, Mark Ellsworth Nadzadi, Scott Kennedy Laster
  • Publication number: 20200219626
    Abstract: A method for preopcratively characterizing an individual patients biomechanic function in preparation of implanting a prosthesis is provided. The method includes subjecting a patient to various activities, recording relative positions of anatomy during said various activities, measuring force environments responsive to said patient's anatomy and affected area during said various activities, characterizing the patient's biomechanic function from said relative positions and corresponding force environments, inputting the measured force environments, relative positions of knee anatomy, and patient's biomechanic function characterization into one or more computer simulation models, inputting a computer model of the prosthesis into said one or more computer simulation models, and manipulating the placement of the prosthesis in the computer simulation using said patient's biomechanic function characterization and said computer model of the prosthesis to approximate a preferred biomechanical fit of the prosthesis.
    Type: Application
    Filed: March 20, 2020
    Publication date: July 9, 2020
    Inventors: Jason K. OTTO, Brian W. MCKINNON, Mark Ellsworth NADZADI
  • Publication number: 20200205898
    Abstract: A surgical system includes a robotic device, a surgical tool mounted on the robotic device, and a processing circuit. The processing circuit is configured to receive image data of an anatomy, generate a virtual bone model based on the image data, identify a soft tissue attachment point on the virtual bone model, plan placement of an implant based on the soft tissue attachment point, generate a control object based on the placement of the implant, and control the robotic device to confine the surgical tool within the control object.
    Type: Application
    Filed: December 19, 2019
    Publication date: July 2, 2020
    Inventors: Emily Hampp, Sally LiArno, Gokce Yildirim, Mark Ellsworth Nadzadi, Gavin Clark
  • Patent number: 10600515
    Abstract: A method for preoperatively characterizing an individual patient's biomechanic function in preparation of implanting a prosthesis is provided. The method includes subjecting a patient to various activities, recording relative positions of anatomy during said various activities, measuring force environments responsive to said patient's anatomy and affected area during said various activities, characterizing the patient's biomechanic function from said relative positions and corresponding force environments, inputting the measured force environments, relative positions of knee anatomy, and patient's biomechanic function characterization into one or more computer simulation models, inputting a computer model of the prosthesis into said one or more computer simulation models, and manipulating the placement of the prosthesis in the computer simulation using said patient's biomechanic function characterization and said computer model of the prosthesis to approximate a preferred biomechanical fit of the prosthesis.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: March 24, 2020
    Assignee: Smith & Nephew, Inc.
    Inventors: Jason K. Otto, Brian W. McKinnon, Mark Ellsworth Nadzadi
  • Publication number: 20200003611
    Abstract: A system and method for monitoring underground drilling in which vibration is monitored by creating a model of the drill string using finite element techniques or finite difference techniques and (i) predicting vibration by inputting real time values of operating parameters into the model, and adjusting the model to agree with measured vibration data, (ii) predicting the weight on bit and drill string and mud motor speeds at which resonance will occur, and when stick-slip will occur, to avoid operating regimes that will result in high vibration, (iii) determining vibration and torque levels along the length of the drill string based on the measured vibration and torque at one or more locations, (iv) determining the remaining life of critical components of the drill string based on the history of the vibration, and (v) determining the optimum drilling parameters that will avoid excessive vibration of the drill string.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 2, 2020
    Applicant: APS Technology, Inc.
    Inventors: William Evans TURNER, Mark Ellsworth WASSELL
  • Publication number: 20190380788
    Abstract: Systems, methods, software and techniques for generating a milling path for a tool of a surgical system are provided. The milling path is designed to remove a resection volume associated with an anatomical volume. A reference guide is defined with respect to the resection volume. Sections are defined along the reference guide in succession. Each section intersects the reference guide at a different intersection point and is at a specified orientation relative to the reference guide at the intersection point. Each section further intersects the resection volume. A section path is generated to be bounded within each section and defined relative to the resection volume. A plurality of transition segments are generated and each transition segment connects section paths of successive sections along the reference guide.
    Type: Application
    Filed: June 14, 2019
    Publication date: December 19, 2019
    Inventors: Hans-Ulrich Becker, Michael Dale Dozeman, Michael Ferko, Gregory Garcia, Vladimir Gershuni, Jose-Luis Moctezuma De La Barrera, Mark Ellsworth Nadzadi, Patrick Roessler
  • Patent number: 10472944
    Abstract: A drilling system and associated systems and methods for monitoring, controlling, and predicting vibration of a drilling operation. The vibration information can include axial, lateral or torsional vibration of a drill string.
    Type: Grant
    Filed: September 25, 2013
    Date of Patent: November 12, 2019
    Assignee: APS Technology, Inc.
    Inventor: Mark Ellsworth Wassell
  • Publication number: 20190321126
    Abstract: Systems, methods and software are provided for aiding in positioning of a camera relative to objects in a surgical environment. The camera has a 3D field of view and senses positions of the objects in the field of view. A controller is coupled to the camera and defines a first zone and a second zone within the field of view. Each zone defines a range of acceptable positions for one of the objects relative to a position of the camera. The controller receives the position of the objects. A graphical user interface displays image representations of: the field of view, the first zone relative to the field of view, the second zone relative to the field of view, the position of one object relative to the first zone, and the position of another object relative to the second zone.
    Type: Application
    Filed: April 22, 2019
    Publication date: October 24, 2019
    Applicant: MAKO Surgical Corp.
    Inventors: Jason Karl Otto, Matthew Thompson, Mark Ellsworth Nadzadi, Roberto Montane, Jonathan Morgan, Bojan Gospavic
  • Patent number: 10416024
    Abstract: A system and method for monitoring underground drilling in which vibration is monitored by creating a model of the drill string using finite element techniques or finite difference techniques and (i) predicting vibration by inputting real time values of operating parameters into the model, and then adjusting the model to agree with measured vibration data, (ii) predicting the weight on bit and drill string and mud motor speeds at which resonance will occur, as well as when stick-slip will occur, so that the operator can avoid operating regimes that will result in high vibration, (iii) determining vibration and torque levels along the length of the drill string based on the measured vibration and torque at one or more locations, (iv) determining the remaining life of critical components of the drill string based on the history of the vibration to which the components have been subjected, and (v) determining the optimum drilling parameters that will avoid excessive vibration of the drill string.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: September 17, 2019
    Assignee: APS Technology, Inc.
    Inventors: William Evans Turner, Mark Ellsworth Wassell
  • Patent number: 10342555
    Abstract: A patient specific guide block for a knee includes a plurality of bone interfacing portions and a cutting slot. The plurality of bone interfacing portions are configured to overlie portions of an end of a bone. The bone interfacing portions each have a surface that is generally a negative of the portion of the bone that the respective bone interfacing portion overlies. The bone interfacing portions are angularly offset from each other such that a first of the bone interfacing portions overlies an anterior portion of the bone, and a second of the bone interfacing portions overlies a portion of bone generally perpendicular to the anterior portion of bone. The cutting slot is oriented in a fixed position relative to the bone interfacing portions such that the cutting slot directs a cutting tool at a fixed angle and at a fixed depth relative to the bone interfacing portions.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: July 9, 2019
    Assignee: Smith & Nephew, Inc.
    Inventors: Abraham Biglari Salehi, David Timothy Mehl, Mark Ellsworth Nadzadi, Aashiish Agnihotri, Jason Sean Jordan
  • Publication number: 20190142596
    Abstract: A femoral prosthetic component includes a patellar guide portion, a pair of condyles projecting from the guide portion and forming an intercondylar notch therebetween, a bearing surface, and an interface surface configured to face a resected surface of a femur. The interface surface comprises an anterior face and a posterior face, and is substantially contoured between the anterior and posterior face to match a contoured surface of the femur. The substantially contoured interface surface may include at least one planar surface portion to about a flat cut portion in the surface of the femur. This planar surface portion may be a distal flat at a distal face of the interface surface. The contoured interface surface may alternatively include a plurality of planar surface portions. The femoral prosthetic component is configured such that preparation of the bone to match the interface surface results in minimal resection of the distal femur.
    Type: Application
    Filed: January 16, 2019
    Publication date: May 16, 2019
    Inventors: Mark Ellsworth Nadzadi, Jason Karl Otto, Amit Mistry
  • Patent number: D928195
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: August 17, 2021
    Assignee: APS Technology, Inc.
    Inventors: Mark Ellsworth Wassell, Rudolph Popeszku