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).
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Patent number: 12274811Abstract: 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: GrantFiled: June 2, 2023Date of Patent: April 15, 2025Assignee: UNIVERSITY OF MARYLAND, BALTIMOREInventors: Charles Sansur, Steven C. Ludwig
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Publication number: 20250000657Abstract: 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. A stabilizing driver is additionally provided to aid in placement of the device when obstructions are present.Type: ApplicationFiled: September 13, 2024Publication date: January 2, 2025Inventors: Charles Sansur, Steven C. Ludwig, Ryan Smith
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Publication number: 20230310168Abstract: 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: ApplicationFiled: June 2, 2023Publication date: October 5, 2023Inventors: Charles SANSUR, Steven C. LUDWIG
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Publication number: 20230285156Abstract: 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: ApplicationFiled: March 13, 2023Publication date: September 14, 2023Inventors: Charles Sansur, Steven C. Ludwig, Ryan Smith
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Patent number: 11672672Abstract: 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: GrantFiled: September 12, 2018Date of Patent: June 13, 2023Assignee: UNIVERSITY OF MARYLAND, BALTIMOREInventors: Charles Sansur, Steven C. Ludwig
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Publication number: 20200345503Abstract: 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: ApplicationFiled: July 21, 2020Publication date: November 5, 2020Applicant: UNIVERSITY OF MARYLAND, BaltimoreInventors: Charles SANSUR, Steven C. LUDWIG
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Patent number: 10765525Abstract: 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: GrantFiled: July 27, 2018Date of Patent: September 8, 2020Assignee: UNIVERSITY OF MARYLAND, BALTIMOREInventors: Charles Sansur, Steven C. Ludwig
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Publication number: 20200268522Abstract: 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: ApplicationFiled: September 12, 2018Publication date: August 27, 2020Inventors: Charles SANSUR, Steven C. LUDWIG
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Publication number: 20190053910Abstract: 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: ApplicationFiled: July 27, 2018Publication date: February 21, 2019Applicant: University of Maryland, BaltimoreInventors: Charles SANSUR, Steven C. LUDWIG
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Publication number: 20140012320Abstract: 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: ApplicationFiled: September 13, 2013Publication date: January 9, 2014Applicant: DEPUY SYNTHES PRODUCTS LLCInventors: Steven C. Ludwig, Mark T. Hall, Thomas V. Doherty
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Patent number: 8591550Abstract: 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: GrantFiled: January 3, 2012Date of Patent: November 26, 2013Assignee: DePuy Spine, Inc.Inventors: Steven C. Ludwig, Mark T. Hall, Thomas V. Doherty
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Patent number: 8556937Abstract: 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: GrantFiled: May 14, 2012Date of Patent: October 15, 2013Assignee: Depuy Synthes Products, LLCInventors: Steven C. Ludwig, Mark T. Hall, Thomas V. Doherty
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Patent number: 8192471Abstract: 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: GrantFiled: April 1, 2010Date of Patent: June 5, 2012Assignee: DePuy Spine, Inc.Inventors: Steven C. Ludwig, Mark T. Hall, Thomas V. Doherty