Patents by Inventor Christopher HAPSTACK

Christopher HAPSTACK 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: 11918481
    Abstract: The present invention provides expandable devices and insertion tools for deploying the expandable devices. The expandable devices are capable of increasing in height and width when expanded from a closed configuration to an open configuration to occupy a larger volume and to present a larger surface area. The expandable devices are lockable and are capable of rigidly occupying a space after expansion. In some embodiments, the expandable devices are useful as interbody devices for spinal fusions.
    Type: Grant
    Filed: April 8, 2021
    Date of Patent: March 5, 2024
    Assignee: MUSC Foundation for Research Development
    Inventors: Stephen Kalhorn, Mark E. Semler, Joseph Ruscito, Christopher Hapstack
  • Publication number: 20220304672
    Abstract: The present invention provides decorticating screws and insertion tools for implanting the decorticating screws. The screws anchor into a first and a second bone to fuse the two bones together. The screws include a rotatable bladed section to decorticate a joint space between the first and second bone. The screws also optionally include a cap to secure the screws in the bone and apply compression to the joint to be fused. In some embodiments, the decorticating screws are useful for sacroiliac (SI) joint fusion.
    Type: Application
    Filed: August 28, 2020
    Publication date: September 29, 2022
    Inventors: Stephen Kalhorn, Mark Semler, Christopher Hapstack, Joe Ruscito
  • Patent number: 11278424
    Abstract: Expandable vertebral body implants, systems, instruments, and methods of assembly and using the implants, systems, and instruments are disclosed. The vertebral body implant includes a body with a first end and a second end, a first rotating member rotatably coupled to the first end, wherein an end includes a plurality of first notches inset into the first rotating member, a second rotating member rotatably coupled to the second end, wherein an end includes a plurality of second notches inset into the second rotating member, a first extension member moveably coupled to the first end, and a second extension member moveably coupled to the second end. The expandable cage system comprises a vertebral body implant and an insertion instrument. Methods for assembling and using the vertebral body implants and instruments are also disclosed.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: March 22, 2022
    Assignee: MUSC FOUNDATON FOR RESEARCH DEVELOPMENT
    Inventors: Mark Evald Semler, Bruce Frankel, Joseph Ruscito, Christopher Hapstack
  • Publication number: 20210220148
    Abstract: The present invention provides expandable devices and insertion tools for deploying the expandable devices. The expandable devices are capable of increasing in height and width when expanded from a closed configuration to an open configuration to occupy a larger volume and to present a larger surface area. The expandable devices are lockable and are capable of rigidly occupying a space after expansion. In some embodiments, the expandable devices are useful as interbody devices for spinal fusions.
    Type: Application
    Filed: April 8, 2021
    Publication date: July 22, 2021
    Inventors: Stephen Kalhorn, Mark E. Semler, Joseph Ruscito, Christopher Hapstack
  • Patent number: 11000385
    Abstract: The present invention provides expandable devices and insertion tools for deploying the expandable devices. The expandable devices are capable of increasing in height and width when expanded from a closed configuration to an open configuration to occupy a larger volume and to present a larger surface area. The expandable devices are lockable and are capable of rigidly occupying a space after expansion. In some embodiments, the expandable devices are useful as interbody devices for spinal fusions.
    Type: Grant
    Filed: October 1, 2018
    Date of Patent: May 11, 2021
    Assignee: MUSC Foundation for Research Development
    Inventors: Stephen Kalhorn, Mark E. Semler, Joseph Ruscito, Christopher Hapstack
  • Publication number: 20200214851
    Abstract: The present invention provides expandable devices and insertion tools for deploying the expandable devices. The expandable devices are capable of increasing in height and width when expanded from a closed configuration to an open configuration to occupy a larger volume and to present a larger surface area. The expandable devices are lockable and are capable of rigidly occupying a space after expansion. In some embodiments, the expandable devices are useful as interbody devices for spinal fusions.
    Type: Application
    Filed: October 1, 2018
    Publication date: July 9, 2020
    Inventors: Stephen Kalhorn, Mark E. Semler, Joseph Ruscito, Christopher Hapstack
  • Publication number: 20190314170
    Abstract: Expandable vertebral body implants, systems, instruments, and methods of assembly and using the implants, systems, and instruments are disclosed. The vertebral body implant includes a body with a first end and a second end, a first rotating member rotatably coupled to the first end, wherein an end includes a plurality of first notches inset into the first rotating member, a second rotating member rotatably coupled to the second end, wherein an end includes a plurality of second notches inset into the second rotating member, a first extension member moveably coupled to the first end, and a second extension member moveably coupled to the second end. The expandable cage system comprises a vertebral body implant and an insertion instrument. Methods for assembling and using the vertebral body implants and instruments are also disclosed.
    Type: Application
    Filed: May 28, 2019
    Publication date: October 17, 2019
    Applicant: MUSC FOUNDATION FOR RESEARCH DEVELOPMENT
    Inventors: Mark Evald SEMLER, Bruce FRANKEL, Joseph RUSCITO, Christopher HAPSTACK