Patents by Inventor Steven C. Ludwig

Steven C. Ludwig 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: 20230310168
    Abstract: Dural repair devices that are configured to effectively and reliably repair the damage of a dural tear due to incidental durotomies are provided, along with methods of use. The devices and methods enhance the ability of a surgeon to repair a patent's dura mater, or dura, during surgery of the central nervous system. The dural repair device has a multi-layer structure configured to exert a pressure or tamponade effect to compress a patient's dura to its state prior to the spinal surgery. Thus, the dural repair devices and methods of use may reduce the patient's risk morbidity, further surgery, spinal headaches, or other injuries and discomforts.
    Type: Application
    Filed: June 2, 2023
    Publication date: October 5, 2023
    Inventors: Charles SANSUR, Steven C. LUDWIG
  • Publication number: 20230285156
    Abstract: An implantable device for sacroiliac (“SI”) joint fusion and an associated method employ an SI joint fusion portion and an anchor portion of smaller diameter than the SI joint fusion portion and that extends distally from a distal end of the SI joint fusion portion. The SI joint fusion portion is externally threaded and is configured to, when surgically implanted, extend across the SI joint. The anchor portion in turn extends distally from the SI joint fusion portion and is configured for implanting entirely within the patient’s ilium adjacent the SI joint. In certain configurations, the joint fusion portion is configured to enable fixation of spinal equipment at a proximal end of the joint fusion portion.
    Type: Application
    Filed: March 13, 2023
    Publication date: September 14, 2023
    Inventors: Charles Sansur, Steven C. Ludwig, Ryan Smith
  • Patent number: 11672672
    Abstract: Dural repair devices that are configured to effectively and reliably repair the damage of a dural tear due to incidental durotomies are provided, along with methods of use. The devices and methods enhance the ability of a surgeon to repair a patients dura mater, or dura, during surgery of the central nervous system. The dural repair device has a multi-layer structure configured to exert a pressure or tamponade effect to compress a patient's dura to its state prior to the spinal surgery. Thus, the dural repair devices and methods of use may reduce the patients risk morbidity, further surgery, spinal headaches, or other injuries and discomforts.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: June 13, 2023
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventors: Charles Sansur, Steven C. Ludwig
  • Publication number: 20200345503
    Abstract: Interbody cages for spinal stabilization having a frame that surrounds a central compartment suitable for retaining biological material, such as bone graft material. The central compartment acts as a spill-free bone and biologic compartment that allows a surgeon to introduce the interbody cage into the body in an effective manner without spilling the biological material. Methods for introducing the interbody cages are disclosed.
    Type: Application
    Filed: July 21, 2020
    Publication date: November 5, 2020
    Applicant: UNIVERSITY OF MARYLAND, Baltimore
    Inventors: Charles SANSUR, Steven C. LUDWIG
  • Patent number: 10765525
    Abstract: Interbody cages for spinal stabilization having a frame that surrounds a central compartment suitable for retaining biological material, such as bone graft material. The central compartment acts as a spill-free bone and biologic compartment that allows a surgeon to introduce the interbody cage into the body in an effective manner without spilling the biological material. Methods for introducing the interbody cages are disclosed.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: September 8, 2020
    Assignee: UNIVERSITY OF MARYLAND, BALTIMORE
    Inventors: Charles Sansur, Steven C. Ludwig
  • Publication number: 20200268522
    Abstract: Dural repair devices that are configured to effectively and reliably repair the damage of a dural tear due to incidental durotomies are provided, along with methods of use. The devices and methods enhance the ability of a surgeon to repair a patients dura mater, or dura, during surgery of the central nervous system. The dural repair device has a multi-layer structure configured to exert a pressure or tamponade effect to compress a patient's dura to its state prior to the spinal surgery. Thus, the dural repair devices and methods of use may reduce the patients risk morbidity, further surgery, spinal headaches, or other injuries and discomforts.
    Type: Application
    Filed: September 12, 2018
    Publication date: August 27, 2020
    Inventors: Charles SANSUR, Steven C. LUDWIG
  • Publication number: 20190053910
    Abstract: Interbody cages for spinal stabilization having a frame that surrounds a central compartment suitable for retaining biological material, such as bone graft material. The central, compartment acts as a spill-free bone and biologic compartment that allows a surgeon to introduce the interbody cage into the body in an effective manner without spilling the biological material. Methods for introducing the interbody cages are disclosed.
    Type: Application
    Filed: July 27, 2018
    Publication date: February 21, 2019
    Applicant: University of Maryland, Baltimore
    Inventors: Charles SANSUR, Steven C. LUDWIG
  • Publication number: 20140012320
    Abstract: Exemplary spinal fixation devices, systems, and method are provided for stabilizing vertebrae in a patient's spine. In one exemplary embodiment, methods and devices are provided for coupling one or more bone anchors, such as hooks, screws, etc., and/or one or more spinal fixation elements, such as spinal rods, cables, plates, etc. In certain exemplary embodiments, a cross connector is provided for connecting and stabilizing two bone anchors, a bone anchor and a spinal fixation element, or a bone anchor and bone.
    Type: Application
    Filed: September 13, 2013
    Publication date: January 9, 2014
    Applicant: DEPUY SYNTHES PRODUCTS LLC
    Inventors: Steven C. Ludwig, Mark T. Hall, Thomas V. Doherty
  • Patent number: 8591550
    Abstract: Exemplary spinal fixation devices, systems, and method are provided for stabilizing vertebrae in a patient's spine. In one exemplary embodiment, methods and devices are provided for coupling one or more bone anchors, such as hooks, screws, etc., and/or one or more spinal fixation elements, such as spinal rods, cables, plates, etc. In certain exemplary embodiments, a cross connector is provided for connecting and stabilizing two bone anchors, a bone anchor and a spinal fixation element, or a bone anchor and bone.
    Type: Grant
    Filed: January 3, 2012
    Date of Patent: November 26, 2013
    Assignee: DePuy Spine, Inc.
    Inventors: Steven C. Ludwig, Mark T. Hall, Thomas V. Doherty
  • Patent number: 8556937
    Abstract: Exemplary spinal fixation devices, systems, and method are provided for stabilizing vertebrae in a patient's spine. In one exemplary embodiment, methods and devices are provided for coupling one or more bone anchors, such as hooks, screws, etc., and/or one or more spinal fixation elements, such as spinal rods, cables, plates, etc. In certain exemplary embodiments, a cross connector is provided for connecting and stabilizing two bone anchors, a bone anchor and a spinal fixation element, or a bone anchor and bone.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: October 15, 2013
    Assignee: Depuy Synthes Products, LLC
    Inventors: Steven C. Ludwig, Mark T. Hall, Thomas V. Doherty
  • Patent number: 8192471
    Abstract: Exemplary spinal fixation devices, systems, and method are provided for stabilizing vertebrae in a patient's spine. In one exemplary embodiment, methods and devices are provided for coupling one or more bone anchors, such as hooks, screws, etc., and/or one or more spinal fixation elements, such as spinal rods, cables, plates, etc. In certain exemplary embodiments, a cross connector is provided for connecting and stabilizing two bone anchors, a bone anchor and a spinal fixation element, or a bone anchor and bone.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: June 5, 2012
    Assignee: DePuy Spine, Inc.
    Inventors: Steven C. Ludwig, Mark T. Hall, Thomas V. Doherty