Patents by Inventor Istvan Hovorka
Istvan Hovorka 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: 11957598Abstract: This disclosure relates to intervertebral disc prostheses which may have an upper plate, a lower plate, and a mobile core, with the upper surface of the core being in contact with at least a part of the lower surface of the upper plate. In some configurations, limit stops reduce friction while limiting or preventing the movements of the core relative to the lower plate, in translation and in rotation, respectively, along an axis substantially parallel to the lower plate and about an axis substantially perpendicular to the lower plate. Instrumentation for insertion of the prostheses into intervertebral spaces is also described.Type: GrantFiled: April 22, 2022Date of Patent: April 16, 2024Assignee: LDR MedicalInventors: Istvan Hovorka, Pierre Bernard
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Publication number: 20220241086Abstract: This disclosure relates to intervertebral disc prostheses which may have an upper plate, a lower plate, and a mobile core, with the upper surface of the core being in contact with at least a part of the lower surface of the upper plate. In some configurations, limit stops reduce friction while limiting or preventing the movements of the core relative to the lower plate, in translation and in rotation, respectively, along an axis substantially parallel to the lower plate and about an axis substantially perpendicular to the lower plate. Instrumentation for insertion of the prostheses into intervertebral spaces is also described.Type: ApplicationFiled: April 22, 2022Publication date: August 4, 2022Inventors: Istvan Hovorka, Pierre Bernard
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Publication number: 20220241087Abstract: This disclosure relates to intervertebral disc prostheses which may have an upper plate, a lower plate, and a mobile core, with the upper surface of the core being in contact with at least a part of the lower surface of the upper plate. In some configurations, limit stops reduce friction while limiting or preventing the movements of the core relative to the lower plate, in translation and in rotation, respectively, along an axis substantially parallel to the lower plate and about an axis substantially perpendicular to the lower plate. Instrumentation for insertion of the prostheses into intervertebral spaces is also described.Type: ApplicationFiled: April 22, 2022Publication date: August 4, 2022Inventors: Istvan Hovorka, Pierre Bernard
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Publication number: 20200337863Abstract: An interbody distraction and stabilisation device, comprising an implant comprising a casing for containing a filling material and a distraction element that is associated with the casing and that has opposing first and second sides, the distraction element having a first state in which the distraction element has a first height and a second state in which the distraction element has a second height greater than the first height so as to keep body parts spaced apart from each other.Type: ApplicationFiled: December 18, 2018Publication date: October 29, 2020Inventors: Richard Laurent MINFELDE, Paolo MANGIONE, Istvàn HOVORKA
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Publication number: 20200205995Abstract: This disclosure relates to intervertebral disc prostheses which may have an upper plate, a lower plate, and a mobile core, with the upper surface of the core being in contact with at least a part of the lower surface of the upper plate. In some configurations, limit stops reduce friction while limiting or preventing the movements of the core relative to the lower plate, in translation and in rotation, respectively, along an axis substantially parallel to the lower plate and about an axis substantially perpendicular to the lower plate. Instrumentation for insertion of the prostheses into intervertebral spaces is also described.Type: ApplicationFiled: February 24, 2020Publication date: July 2, 2020Inventors: Istvan Hovorka, Pierre Bernard
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Patent number: 10603185Abstract: This disclosure relates to intervertebral disc prostheses which may have an upper plate, a lower plate, and a mobile core, with the upper surface of the core being in contact with at least a part of the lower surface of the upper plate. In some configurations, limit stops reduce friction while limiting or preventing the movements of the core relative to the lower plate, in translation and in rotation, respectively, along an axis substantially parallel to the lower plate and about an axis substantially perpendicular to the lower plate. Instrumentation for insertion of the prostheses into intervertebral spaces is also described.Type: GrantFiled: May 23, 2017Date of Patent: March 31, 2020Assignee: LDR MedicalInventors: Istvan Hovorka, Pierre Bernard
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Publication number: 20170258601Abstract: This disclosure relates to intervertebral disc prostheses which may have an upper plate, a lower plate, and a mobile core, with the upper surface of the core being in contact with at least a part of the lower surface of the upper plate. In some configurations, limit stops reduce friction while limiting or preventing the movements of the core relative to the lower plate, in translation and in rotation, respectively, along an axis substantially parallel to the lower plate and about an axis substantially perpendicular to the lower plate. Instrumentation for insertion of the prostheses into intervertebral spaces is also described.Type: ApplicationFiled: May 23, 2017Publication date: September 14, 2017Inventors: Istvan Hovorka, Pierre Bernard
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Patent number: 9655739Abstract: This disclosure relates to intervertebral disc prostheses which may have an upper plate, a lower plate, and a mobile core, with the upper surface of the core being in contact with at least a part of the lower surface of the upper plate. In some configurations, limit stops reduce friction while limiting or preventing the movements of the core relative to the lower plate, in translation and in rotation, respectively, along an axis substantially parallel to the lower plate and about an axis substantially perpendicular to the lower plate. Instrumentation for insertion of the prostheses into intervertebral spaces is also described.Type: GrantFiled: October 14, 2014Date of Patent: May 23, 2017Assignee: LDR MedicalInventors: Istvan Hovorka, Pierre Bernard
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Publication number: 20150032209Abstract: This disclosure relates to an intervertebral disc prostheses that comprise at least three pieces including an upper plate, a lower plate, and a mobile core, the upper surface of the core being in contact with at least a part of the lower surface of the upper plate, limit stops allowing friction to be limited, while limiting or preventing the movements of the core relative to the lower plate, in translation and in rotation, respectively, along an axis substantially parallel to the lower plate and about an axis substantially perpendicular to the lower plate. Instrumentation for insertion of the prostheses into intervertebral spaces is also described.Type: ApplicationFiled: October 14, 2014Publication date: January 29, 2015Inventors: Istvan Hovorka, Pierre Bernard
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Patent number: 8858635Abstract: The disclosure relates to intervertebral disc prostheses, which may comprise at least three pieces including an upper plate, a lower plate, and a core mobile at least relative to the lower plate, the upper surface of the core being in contact with at least a part of the lower surface of the upper plate. Various embodiments have limit stops allowing friction to be limited, while limiting or preventing the movements of the core relative to the lower plate, in translation and in rotation, respectively, along an axis substantially parallel to the lower plate and about an axis substantially perpendicular to the lower plate, and have at least one hole disposed along the lower surface of the core facilitating sliding of the core relative to the upper surface of the lower plate with which it is in contact. Instruments for inserting intervertebral prostheses are also disclosed.Type: GrantFiled: February 4, 2005Date of Patent: October 14, 2014Assignee: LDR MedicalInventors: Istvan Hovorka, Pierre Bernard
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Publication number: 20060084990Abstract: Embodiments of devices for connecting a spinal rod to a vertebra or to two vertebrae are disclosed. In one embodiment, there is provided a first hook having a threaded protrusion for fitting a connector in which the spinal rod is inserted, a second hook, a rod for connecting the two hooks, and structure for immobilizing the ends of the hook-connecting rod on the heads of the hooks. The end of the hook-connecting rod in contact with the first hook may have an oblong aperture, and the structure for immobilizing this end on the head of the first hook may include a nut intended to cooperate with the connector. Also disclosed are embodiments of a spinal osteosynthesis system including such devices.Type: ApplicationFiled: May 25, 2005Publication date: April 20, 2006Inventors: Jose Gournay, Gaspard Demay, Istvan Hovorka
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Publication number: 20050197706Abstract: The present invention relates to an intervertebral disc prostheses that comprise at least three pieces including an upper plate (1), a lower plate (2) and a mobile core (3) at least relative to the lower plate (2), the upper surface of the core (3) being in contact with at least a part of the lower surface of the upper plate (1), limit stops (22, 31) allowing friction to be limited, while limiting or preventing the movements of the core (3) relative to the lower plate (2), in translation and in rotation, respectively, along an axis substantially parallel to the lower plate (2) and about an axis substantially perpendicular to the lower plate (2) and the lower surface of the core (3) has at least one hole (41) facilitating sliding of the core (3) relative to the upper surface of the lower plate (2) with which it is in contact.Type: ApplicationFiled: February 4, 2005Publication date: September 8, 2005Inventors: Istvan Hovorka, Pierre Bernard
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Patent number: 5702452Abstract: Spinal osteosynthesis device comprising, for one and the same vertebra, a hook (12), two vertebral bearing means associated with the said hook, the latter being adapted so as to be able to bear on the median portion of the vertebral posterior arch between two longitudinal rods (7) of the said device, this hook being provided with transverse means of connection (28) between the hook and the longitudinal rods, with the possibility of adjustment, in a sagittal plane from front to back and from top to bottom, and in a frontal plane from left to right, between the rods and the said hook. The hook (12) and the two anchoring screws or hooks afford three bearing points on the same vertebra, and this avoids having to equip the stage above. Moreover, this hook can be put in place, at the end of a surgical intervention, at the desired stage and at any level chosen by the surgeon, while at the same time permitting an appreciable saving in the time taken for it to be put into place compared with the earlier systems.Type: GrantFiled: January 22, 1996Date of Patent: December 30, 1997Assignee: Sofamor S.N.C.Inventors: Claude Argenson, Ferdinand de Peretti, Istvan Hovorka