Patents by Inventor David Hovda

David Hovda 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: 20210106437
    Abstract: A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
    Type: Application
    Filed: December 3, 2020
    Publication date: April 15, 2021
    Applicant: Simplify Medical Pty Ltd
    Inventors: Malan de Villiers, Ulrich Hahnle, David Hovda
  • Patent number: 10888437
    Abstract: A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: January 12, 2021
    Assignee: Simplify Medical Pty Ltd
    Inventors: Malan de Villiers, Ulrich Hahnle, David Hovda
  • Publication number: 20200107939
    Abstract: A prosthesis system comprises plates that can be positioned against vertebrae and a selected resilient core that can be positioned between the plates to allow the plates to articulate. The selected resilient core can be chosen from a plurality of cores in response to patient characteristics, such as age and/or intervertebral mobility, such that the prosthesis implanted in the patient is tailored to the needs of the patient. The plurality of cores may comprise cores with different resiliencies, and one of the cores can be selected such that the upper and lower plates articulate with the desired shock absorbing resiliency and/or maximum angle of inclination when the one selected core is positioned between the plates.
    Type: Application
    Filed: December 6, 2019
    Publication date: April 9, 2020
    Applicant: Simplify Medical Pty Ltd
    Inventors: Malan de Villiers, David Hovda, James Shapiro
  • Publication number: 20200093542
    Abstract: Systems and methods for robotically preparing a disc space are provided for implantation of an intervertebral prosthetic disc. The system includes three-dimensional modeling to identify positions of vertebrae adjacent a surgical site and a disc selection interface in a computing system to allow the surgeon to select an intervertebral disc prosthesis for implantation. A bone cutting interface allows the surgeon to determine a bone cutting pattern tailored to both the three-dimensional positions of the vertebrae and the selected intervertebral disc. A robot controls a cutting device or guides a cutting device to cut the vertebral bone in the bone cutting pattern.
    Type: Application
    Filed: September 23, 2019
    Publication date: March 26, 2020
    Applicant: Simplify Medical Pty Ltd
    Inventors: Yves Arramon, David Hovda, Michael Sherman
  • Publication number: 20200093614
    Abstract: Systems and methods for robotically distracting a disc space are provided for implantation of an intervertebral prosthetic disc. The system includes a 3D modeling system for creating a 3D model of first and second vertebra adjacent the disc space and identifying positions of the first and second vertebrae. A robotic distractor precisely opens the disc space just large enough to receive a selected intervertebral disc. A computing system stores and processes the 3D model and the positions of the first and second vertebrae before and after distraction. A surgeon interface on the computing system allows the surgeon to select an intervertebral disc prosthesis to be implanted and a desired distraction distance or force to be achieved.
    Type: Application
    Filed: September 23, 2019
    Publication date: March 26, 2020
    Applicant: Simplify Medical Pty Ltd
    Inventors: Yves Arramon, David Hovda, Michael Sherman
  • Publication number: 20200093613
    Abstract: Systems and methods are provided for robotically assisted disc prosthesis selection and implantation. The system includes a 3D modeling system for creating a 3D model of first and second vertebra adjacent the intended surgical site and identifying and storing data for the positions of the first and second vertebrae. A computing system for stores and processes the 3D model and the position data. A robot connected to the computing system attaches to a plurality of instruments including sizing templates, trials, cutters or placement instruments for intervertebral disc prostheses. An interface on the computing system allows the surgeon to sequentially deliver the plurality of instruments with the robot to a registration position to improve the speed and accuracy of the surgical procedure.
    Type: Application
    Filed: September 23, 2019
    Publication date: March 26, 2020
    Applicant: Simplify Medical Pty Ltd
    Inventors: Yves Arramon, David Hovda, Michael Sherman
  • Patent number: 10548739
    Abstract: A prosthesis system comprises plates that can be positioned against vertebrae and a selected resilient core that can be positioned between the plates to allow the plates to articulate. The selected resilient core can be chosen from a plurality of cores in response to patient characteristics, such as age and/or intervertebral mobility, such that the prosthesis implanted in the patient is tailored to the needs of the patient. The plurality of cores may comprise cores with different resiliencies, and one of the cores can be selected such that the upper and lower plates articulate with the desired shock absorbing resiliency and/or maximum angle of inclination when the one selected core is positioned between the plates.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: February 4, 2020
    Assignee: Simplify Medical Pty Ltd
    Inventors: Malan de Villiers, David Hovda, James Shapiro
  • Publication number: 20190388236
    Abstract: An intervertebral prosthesis for insertion between adjacent vertebrae includes an upper plate, a lower plate and a core. The core is retained between the upper and lower plates by a retention feature in the form of central projections on the plates and a corresponding opening in the core. The retention feature is designed to allow the plates to slide over the upper and lower surfaces of the core in the anterior/posterior direction and in the lateral direction and to allow the plates to rotate with respect to each other and the core. The retention feature is also designed to prevent contact between the first and second plates during sliding movement of the plates over the core.
    Type: Application
    Filed: September 4, 2019
    Publication date: December 26, 2019
    Applicant: Simplify Medical Pty Limited
    Inventors: Yves Arramon, David Hovda
  • Patent number: 10426628
    Abstract: An intervertebral prosthesis for insertion between adjacent vertebrae includes an upper plate, a lower plate and a core. The core is retained between the upper and lower plates by a retention feature in the form of central projections on the plates and a corresponding opening in the core. The retention feature is designed to allow the plates to slide over the upper and lower surfaces of the core in the anterior/posterior direction and in the lateral direction and to allow the plates to rotate with respect to each other and the core. The retention feature is also designed to prevent contact between the first and second plates during sliding movement of the plates over the core.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: October 1, 2019
    Assignee: Simplify Medical Pty Ltd
    Inventors: Yves Arramon, David Hovda
  • Publication number: 20190183654
    Abstract: An intervertebral prosthesis for insertion between adjacent vertebrae includes an upper plate, a lower plate and a core. The core is retained between the upper and lower plates by a retention feature in the form of central projections on the plates and a corresponding opening in the core. The retention feature is designed to allow the plates to slide over the upper and lower surfaces of the core in the anterior/posterior direction and in the lateral direction and to allow the plates to rotate with respect to each other and the core. The retention feature is also designed to prevent contact between the first and second plates during sliding movement of the plates over the core.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 20, 2019
    Applicant: Simplify Medical Pty Limited
    Inventors: Yves Arramon, David Hovda
  • Patent number: 10206785
    Abstract: A radiolucent intervertebral prosthesis is implanted in an environment that has been prepared in a manner which enhances radiopacity of the prosthesis and/or the environment. A liquid, powder, or other fluid radiopaque (RO) material, such as iohexol, is introduced into an implantation site, either by directly introducing the material into the site and/or by applying the material to a surface of the implant. The presence of the RO material in the implantation site provides contrast with the material of radiolucent prosthesis while the implantation site is being radiographically imaged, e.g. during fluoroscopic visualization while the prosthesis is being implanted. During implantation, the RO material helps the physician view and manipulate the implant, and after the implantation is complete, the RO material will be resorbed or otherwise lost from the implantation site so that the area returns to a radiolucent condition to facilitate subsequent radiographic imaging when needed.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: February 19, 2019
    Assignee: Simplify Medical Pty Ltd
    Inventors: Yves Arramon, David Hovda, Mark Alvis, Lisa Metelman
  • Publication number: 20190000647
    Abstract: A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
    Type: Application
    Filed: September 5, 2018
    Publication date: January 3, 2019
    Applicant: Simplify Medical Pty Ltd
    Inventors: Malan de Villiers, Ulrich Hahnle, David Hovda
  • Publication number: 20180368989
    Abstract: A radiolucent intervertebral prosthesis is implanted in an environment that has been prepared in a manner which enhances radiopacity of the prosthesis and/or the environment. A liquid, powder, or other fluid radiopaque (RO) material, such as iohexol, is introduced into an implantation site, either by directly introducing the material into the site and/or by applying the material to a surface of the implant. The presence of the RO material in the implantation site provides contrast with the material of radiolucent prosthesis while the implantation site is being radiographically imaged, e.g. during fluoroscopic visualization while the prosthesis is being implanted. During implantation, the RO material helps the physician view and manipulate the implant, and after the implantation is complete, the RO material will be resorbed or otherwise lost from the implantation site so that the area returns to a radiolucent condition to facilitate subsequent radiographic imaging when needed.
    Type: Application
    Filed: September 5, 2018
    Publication date: December 27, 2018
    Applicant: Simplify Medical Pty Ltd
    Inventors: Yves Arramon, David Hovda, Mark Alvis, Lisa Metelman
  • Patent number: 10130494
    Abstract: A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: November 20, 2018
    Assignee: Simplify Medical Pty Ltd.
    Inventors: Malan de Villiers, Ulrich Hahnle, David Hovda
  • Patent number: 10085853
    Abstract: A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: October 2, 2018
    Assignee: Simplify Medical Pty Ltd
    Inventors: Malan De Villiers, Ulrich Hahnle, David Hovda
  • Patent number: 10085848
    Abstract: A dynamic intervertebral spacer includes a ring which is split on an anterior portion. A posterior portion of the ring acts as a torsion spring. After implantation, the ring is able to act as a spring between superior and inferior vertebral bodies, thus allowing dynamic bone growth in fusion procedures.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: October 2, 2018
    Assignee: Simplify Medical Pty Ltd
    Inventors: Yves Arramon, David Hovda
  • Patent number: 9956091
    Abstract: A method for inserting an intervertebral disc prosthesis into a space between two vertebrae involves inserting the prosthesis partway into the space under constraint to prevent endplates of the prosthesis from articulating, releasing the prosthesis from constraint, and inserting the unconstrained prosthesis farther into the space. In some embodiments, the method involves grasping the prosthesis with a grasping device to insert the prosthesis partway under constraint, loosing the grasping device to release the prosthesis from constraint, and pushing the prosthesis farther into the disc space using the grasping device and/or one or more separate pusher devices. A system includes a grasping device, at least one separate pushing device, and optionally a vertebral spreading device and/or a vertebral midline indicator device.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: May 1, 2018
    Assignee: Simplify Medical Pty Ltd
    Inventors: Malan de Villiers, Ulrich Hahnle, David Hovda
  • Patent number: RE46802
    Abstract: A prosthetic disc for insertion between adjacent vertebrae includes a core having upper and lower curved surfaces and upper and lower plates. At least one of the curved surfaces of the core is metallic, and in some embodiments the entire core is metallic. Each plate has an outer surface which engages a vertebra and a metallic inner curved surface which is shaped to slide over one of the curved surfaces of the core. In some embodiments, the center of rotation of the core is free to move relative to the upper and lower metallic plates. In some embodiments, one or more channels extend across one or both of the curved surfaces of the core for allowing passage of bodily fluid to promote lubrication between the core and at least one of the plates.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: April 24, 2018
    Assignee: Simplify Medical Pty Limited
    Inventors: Malan de Villiers, Ulrich Hahnle, David Hovda
  • Patent number: RE47470
    Abstract: A vertebral body replacement includes first and second end plates, and a compliant connector section between the end plates having one or more helical cuts to provide limited compliance between the end plates. The compliant connector section can be provided in a separate spacer that fits between the end plates or directly in one or more of the end plates. The adjoining end plate surfaces, and/or adjoining surfaces of the spacer, include a rotational interlock to inhibit rotational motion between the surfaces and allow a modular stacking assembly of the vertebral body replacement to accommodate a wide range of patients.
    Type: Grant
    Filed: June 23, 2016
    Date of Patent: July 2, 2019
    Assignee: Simplify Medical Pty Ltd
    Inventors: David Hovda, Yves Arramon
  • Patent number: RE47796
    Abstract: An intervertebral joint assembly includes an upper support and a lower support, each of which has two or more components. The upper and lower support components are arranged in situ to form the upper and lower supports, respectively. By arranging the supports in situ, the supports can be introduced from the back of the patient, for example with an arthroscope. Each of the upper and lower supports has a surface adapted to engage a vertebra and a surface adapted to engage the other support or an intermediate member to form an articulate joint which articulates the joint assembly. In some embodiments, the components of the upper and lower supports are assembled in situ, for example with pivoting, telescoping or bending, to form the upper and lower supports, respectively. The supports can be attached to vertebrae with pedicles screws, and/or other anchors attached to the supports.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: January 7, 2020
    Assignee: Simplify Medical Pty Ltd
    Inventors: Malan de Villiers, David Hovda