Patents by Inventor Christian Mazel
Christian Mazel 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: 10751193Abstract: A device for percutaneous transpedicular fusion includes at least two straight pedicular cannulas arranged respectively on the upper or lower vertebra, or on the two vertebrae of the spinal segment, at least one guide pin with a curved profile, which is implanted in the endplate of the corresponding vertebra through the corresponding pedicular cannula, of a flexible cannulated drill bit guided around the corresponding guide pin and driven in back and forth movements by a cannulated drive system to nibble out gradually slots in the lower and upper endplate of each vertebra and reduce to flaps the nucleic tissues of an intervertebral disk for the production of the intersomatic space, of an injection device connected to one of the straight pedicular cannulas for the injection of the graft into the intersomatic space, and closing devices that are screwed into the holes left free after retraction of the straight pedicular cannulas.Type: GrantFiled: April 18, 2016Date of Patent: August 25, 2020Assignee: CLARIANCEInventors: Adrien Billon, Afshin Gangi, Jean Yves Leroy, Sebastien Schuller, Guy Viart, Jean Paul Steib, Christian Mazel, Nicolas Virgaux
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Patent number: 10188442Abstract: The present invention relates to a bone screw comprising a screw body comprising a proximal end, a distal end, a longitudinal axis and a thread along all or a portion of said screw body; a screw head; a through bore extending coaxially through said screw head and through said screw body from the proximal end up to the distal end; at least three blind channels angularly-disposed around the bore; each of said channels being configured to receive a perforated catheter or a needle; a plurality of radially-disposed fenestrations; wherein each of said channels is connected to an exterior of said screw body through at least one fenestration; and flexible directing means secured to the screw head. The present invention also relates to a system comprising such bone screw, to a method of delivering a substance to an intervertebral disc using the system according to the invention and to a method of treating vertebral tumor using the system according to the invention.Type: GrantFiled: July 14, 2016Date of Patent: January 29, 2019Assignee: CM DEVELOPPEMENTInventor: Christian Mazel
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Publication number: 20180014867Abstract: The present invention relates to a bone screw comprising a screw body comprising a proximal end, a distal end, a longitudinal axis and a thread along all or a portion of said screw body; a screw head; a through bore extending coaxially through said screw head and through said screw body from the proximal end up to the distal end; at least three blind channels angularly-disposed around the bore; each of said channels being configured to receive a perforated catheter or a needle; a plurality of radially-disposed fenestrations; wherein each of said channels is connected to an exterior of said screw body through at least one fenestration; and flexible directing means secured to the screw head. The present invention also relates to a system comprising such bone screw, to a method of delivering a substance to an intervertebral disc using the system according to the invention and to a method of treating vertebral tumor using the system according to the invention.Type: ApplicationFiled: July 14, 2016Publication date: January 18, 2018Inventor: Christian MAZEL
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Publication number: 20160302936Abstract: A device for percutaneous transpedicular fusion includes at least two straight pedicular cannulas arranged respectively on the upper or lower vertebra, or on the two vertebrae of the spinal segment, at least one guide pin with a curved profile, which is implanted in the endplate of the corresponding vertebra through the corresponding pedicular cannula, of a flexible cannulated drill bit guided around the corresponding guide pin and driven in back and forth movements by a cannulated drive system to nibble out gradually slots in the lower and upper endplate of each vertebra and reduce to flaps the nucleic tissues of an intervertebral disk for the production of the intersomatic space, of an injection device connected to one of the straight pedicular cannulas for the injection of the graft into the intersomatic space, and closing devices that are screwed into the holes left free after retraction of the straight pedicular cannulas.Type: ApplicationFiled: April 18, 2016Publication date: October 20, 2016Inventors: Adrien BILLON, Afshin GANGI, Jean Yves LEROY, Sebastien SCHULLER, Guy VIART, Jean Paul STEIB, Christian MAZEL, Nicolas VIRGAUX
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Patent number: 9295495Abstract: There is provided a posterior lumbar joint prosthesis which includes prosthetic elements reproducing the movements of the joint facets and vertebral anchors which adapt to the variations in the anatomy of vertebra. In use, the prosthesis has lower and upper connectors on each side of the lumbar vertebra. The lower connectors are coupled with, and pivotably mounted onto, respective lower pedicular screws, and a member defining a member axis links lower and upper connectors on each side of the lumbar vertebra. Upon lateral flexion of one of the upper and lower vertebrae relative to the other, each lower connector is capable of multiaxis pivotable movement relative to the respective lower pedicular screws such that each member is capable to pivot with respect to (i) the axis of the lower screw, (ii) a first axis intersecting the lower screw and the lower connector, and/or (iii) an axis intersecting the above first axis and the lower screw, while the member can also move along the member axis.Type: GrantFiled: February 24, 2009Date of Patent: March 29, 2016Assignee: CLARIANCEInventors: Alain Tornier, Jean-Paul Steib, Christian Mazel
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Patent number: 8740981Abstract: The nuclear implant according to this invention constitutes, between two overlying and underlying vertebrae Va, Vb of a spine segment Sr, an intervertebral support device that damps shock and ensures the mobility of the functional unit that is formed by the vertebrae of a vertebral column, whereby the nuclear implant includes a filling element (2) that includes at least one continuous wire (50, 51) that is arranged—inside a nuclear space Es that is obtained after nucleotomy of the intervertebral disk Di—along a profile in the shape of a ring whose stack of coils (55) makes it possible to delimit a central internal space (52).Type: GrantFiled: April 6, 2009Date of Patent: June 3, 2014Assignee: ClarianceInventors: Alain Tornier, Jean-Paul Steib, Christian Mazel
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Patent number: 8652209Abstract: A process for nucleotomy of an intervertebral disk to create a nuclear space and a method for replacing a nucleus pulposus of an intervertebral disk after a nucleotomy are provided. The methods position a nuclear implant between two overlying and underlying vertebrae of a spine segment in the form of one or more continuous wire arranged as a stack of helices inside the nuclear space.Type: GrantFiled: July 2, 2012Date of Patent: February 18, 2014Assignee: ClarianceInventors: Alain Tornier, Jean-Paul Steib, Christian Mazel
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Publication number: 20120277862Abstract: A process for nucleotomy of an intervertebral disk to create a nuclear space and a method for replacing a nucleus pulposus of an intervertebral disk after a nucleotomy are provided. The methods position a nuclear implant between two overlying and underlying vertebrae of a spine segment in the form of one or more continuous wire arranged as a stack of helices inside the nuclear space.Type: ApplicationFiled: July 2, 2012Publication date: November 1, 2012Applicant: CLARIANCEInventors: Alain TORNIER, Jean-Paul STEIB, Christian MAZEL
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Patent number: 7862615Abstract: The invention concerns an intervertebral implant that includes a spacer designed firstly to assume an implantation shape in which the spacer has two opposed channels (3, 4) bordered by retaining wings (3a, 3b, 4a, 4b), intended to receive the two spinous processes of two vertebrae, and secondly an insertion shape in which the parts of the implant forming the channels (3, 4) are separated by a value (d), and on at least one of their sides are lacking the retaining wings (3a, 3b, 4a, 4b), characterized in that the implant (1) is made from a shape-memory material, so that the implant changes to its implantation shape when it is subjected to heat, and so that, in this implantation shape, the parts of the implant forming the channels (3, 4) are separated by a value (D) that is greater than the value(d) of the insertion shape, in order to ensure the separation of the spinous processes.Type: GrantFiled: August 1, 2006Date of Patent: January 4, 2011Assignee: Scient'xInventors: Olivier Carli, Pierre Bernard, Christian Mazel, David Ryan
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Publication number: 20090254186Abstract: The nuclear implant according to this invention constitutes, between two overlying and underlying vertebrae Va, Vb of a spine segment Sr, an intervertebral support device that damps shock and ensures the mobility of the functional unit that is formed by the vertebrae of a vertebral column, whereby the nuclear implant includes a filling element (2) that includes at least one continuous wire (50, 51) that is arranged—inside a nuclear space Es that is obtained after nucleotomy of the intervertebral disk Di—along a profile in the shape of a ring whose stack of coils (55) makes it possible to delimit a central internal space (52).Type: ApplicationFiled: April 6, 2009Publication date: October 8, 2009Applicant: CLARIANCEInventors: Alain TORNIER, Jean-Paul Steib, Christian Mazel
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Publication number: 20090216277Abstract: There is provided a posterior lumbar joint prosthesis which includes prosthetic elements reproducing the movements of the joint facets and vertebral anchors which adapt to the variations in the anatomy of vertebra. In use, the prosthesis has lower and upper connectors on each side of the lumbar vertebra. The lower connectors are coupled with, and pivotably mounted onto, respective lower pedicular screws, and a member defining a member axis links lower and upper connectors on each side of the lumbar vertebra. Upon lateral flexion of one of the upper and lower vertebrae relative to the other, each lower connector is capable of multiaxis pivotable movement relative to the respective lower pedicular screws such that each member is capable to pivot with respect to (i) the axis of the lower screw, (ii) a first axis intersecting the lower screw and the lower connector, and/or (iii) an axis intersecting the above first axis and the lower screw, while the member can also move along the member axis.Type: ApplicationFiled: February 24, 2009Publication date: August 27, 2009Applicant: CLARIANCEInventors: Alain Tornier, Jean-Paul Steib, Christian Mazel
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Publication number: 20070106298Abstract: The invention concerns an intervertebral implant that includes a spacer designed firstly to assume an implantation shape in which the spacer has two opposed channels (3, 4) bordered by retaining wings (3a, 3b, 4a, 4b), intended to receive the two spinous processes of two vertebrae, and secondly an insertion shape in which the parts of the implant forming the channels (3, 4) are separated by a value (d), and on at least one of their sides are lacking the retaining wings (3a, 3b, 4a, 4b), characterised in that the implant (1) is made from a shape-memory material, so that the implant changes to its implantation shape when it is subjected to heat, and so that, in this implantation shape, the parts of the implant forming the channels (3, 4) are separated by a value (D) that is greater than the value(d) of the insertion shape, in order to ensure the separation of the spinous processes.Type: ApplicationFiled: August 1, 2006Publication date: May 10, 2007Inventors: Olivier Carli, Pierre Bernard, Christian Mazel, David Ryan
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Publication number: 20050171537Abstract: Each connector of the vertebral anchoring system for spinal fixation includes: a first element having parallel housings in cylinder portion receiving respectively the corresponding linking rod and a threaded hollow cylindrical sleeve extending vertically between the housings; a second element having parallel housings in cylinder portion receiving respectively the corresponding linking rod and a bore provided between the housings to be traversed by the cylindrical sleeve of the first element; a clamping nut co-operating with a male thread of the cylindrical sleeve of the first element for fixing the second element on the first and the linking rods in the housings; and clamping elements co-operating with the cylindrical sleeve of the first element for fixing each connector on the corresponding anchoring screw.Type: ApplicationFiled: November 19, 2002Publication date: August 4, 2005Inventors: Christian Mazel, Eric Leroy, Jean-Yves Leroy, Pommier Arnaud
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Patent number: 5704936Abstract: Device including securing elements (24) with the head being expanded by an expansion screw, joining members (3, 4, 5, 6, 7) suitable for coupling to the corresponding securing elements (24), and flexible longitudinal rods (2) with a high elastic limit passing through the joining members, to which the rods can be fixed using clamps. The device is suitable for rear or front fitting.Type: GrantFiled: October 11, 1994Date of Patent: January 6, 1998Assignee: EurosurgicalInventor: Christian Mazel