Patents Assigned to LDR Medical
-
Patent number: 8753397Abstract: An intervertebral disk prosthesis comprising at least three parts is disclosed. Some embodiments comprise a first plate, a second plate, and a core, the upper surface of the core in contact with at least part of the lower surface of the upper plate and the lower surface of the core in contact with at least part of the upper surface of the lower plate, and the lower plate movable at least with respect to the core. Some embodiments comprise cooperation means to limit or eliminate translation movements of the core with respect to the lower plate along an axis substantially parallel to the lower plate, and to limit or eliminate rotation movements of the core with respect to the lower plate, around an axis substantially perpendicular to the lower plate, the planes passing through the upper is and lower plates forming a substantially constant angle.Type: GrantFiled: September 14, 2012Date of Patent: June 17, 2014Assignee: LDR MedicalInventors: Jacques Beaurain, Jean-Marc Fuentes, Jean-Marc Vital, Thierry Dufout, Jean Huppert
-
Publication number: 20140148855Abstract: A spinal internal implantation device for osteosynthesis has one or more bars for supporting for moving the spine and at least one implant for connecting the bars and vertebrae. The implant includes a blown anchor attached to a body of the implant and a fixation arrangement for the bars. The fixation arrangement includes a clamp for clamping the bar against internal walls of a channel formed in the body of the implant. At least part of the length of the bars includes a transversal bearing structure that is a cross-section of the bars having at least one flat part of a part having a lower forepost convexity than the rest of the cross section.Type: ApplicationFiled: April 29, 2013Publication date: May 29, 2014Applicant: LDR MEDICALInventors: Jacques Beaurain, Joel Delecrin, Michel Onimus, Isabelle Koenig, Alain Ducolombier, Marc Pierunek, Herve Chataigner, Marielle Derosi, Agnes DePostel
-
Publication number: 20140135935Abstract: An nucleus prosthesis is disclosed having a plurality of linked segments configured to form, in a closed position, a disc shape. A method includes inserting a plurality of linked segments into an annulus fibrosus and closing the prosthesis so that a first segment inserted into the annulus fibrosus and a last segment inserted into the annulus fibrosus are substantially abutted. Another method includes inserting a plurality of linked segments into an intervertebral disc space and closing the prosthesis so that a first segment inserted into the intervertebral disc space and a last segment inserted into the intervertebral disc space are substantially abutted.Type: ApplicationFiled: January 20, 2014Publication date: May 15, 2014Applicant: LDR MEDICALInventors: Thierry Vila, Henry Dufour, Allain Jerome
-
Publication number: 20140135932Abstract: This present invention concerns a transforaminal intersomatic cage for an intervertebral fusion graft, and an instrument and method for implanting the cage, an embodiment of the cage having a body in the shape of a circular arc and comprising a lateral concave surface, a lateral convex surface, a straight upper surface, a straight lower surface and an end wall having at least one hole, called the end hole, designed to receive a rod of an instrument for implanting the cage between the vertebrae, wherein: the end hole has an orientation that is more or less tangential to the circular arc described by the body; the extremity opposite the end wall of the body includes a return part extending the body toward the centre of the circle on which the circular arc described by the body lies.Type: ApplicationFiled: April 1, 2013Publication date: May 15, 2014Applicant: LDR MedicalInventors: Reginald James Davis, Kevin Kaufman, Greg Hoffman, Alan McGee, Jean Huppert, Hugues Mousselard, Ludovic Rillardon
-
Publication number: 20140121778Abstract: An intervertebral cage includes a thin main wall having two return parts at opposite ends of the wall. The wall has an approximately constant thickness. The return parts are extended by facing end parts having a gap between them. The wall, the return parts and end parts delimit an inner cavity. The gap extends parallel to the wall and has a length between 50% and 100% of the cavity length. The gap length is preferably between 70% to 90% of the cavity length.Type: ApplicationFiled: January 7, 2014Publication date: May 1, 2014Applicant: LDR MEDICALInventor: Jean Huppert
-
Publication number: 20140114413Abstract: An intersomatic cage, an intervertebral prosthesis, an anchoring device and an instrument for implantation of the cage or the prosthesis and the anchoring device are provided. An intersomatic cage or an intervertebral prosthesis fit closely to the anchoring device, which includes a body of elongated shape on a longitudinal axis, of curved shape describing, along the longitudinal axis, an arc whose dimensions and radius of curvature are designed in such a manner that the anchoring device may be implanted in the vertebral plate of a vertebra by presenting its longitudinal axis substantially along the plane of the intervertebral space, where the anchoring device is inserted, by means of the instrument, through a slot located in at least one peripheral wall of the cage or on at least one plate of the intervertebral disc prosthesis to penetrate into at least one vertebral plate.Type: ApplicationFiled: December 31, 2012Publication date: April 24, 2014Applicant: LDR MEDICALInventors: JEROME ALLAIN, JEAN LOMBARD, JEFF PHELPS, PIERCE NUNLEY, CHARLES GORDON, VINCENT LEONE, MICHAEL HISEY
-
Patent number: 8696709Abstract: The present invention relates to an interspinous implant, intended to be implanted between two adjacent dorsal spines, each including an upper edge, a lower edge and two opposed lateral faces, wherein the implant includes at least one body with dimensions arranged so as to maintain or restore a distance between the adjacent edges of the two spinous processes and including at least two wings extending so that at least a part of each wing lies along at least a part of one lateral face of one of the two spinous processes and, additionally, at least one retainer for the implant, designed to retain the body of the implant between the two spinous processes and to be inserted from the same lateral face as the body.Type: GrantFiled: February 9, 2012Date of Patent: April 15, 2014Assignee: LDR MedicalInventors: Hervé Dinville, Samuel Lequette, Alexandre Jodaitis, Richard Wohns, Philippe Tisserand, Laurent Zabee
-
Patent number: 8685100Abstract: In various embodiments, an intervertebral disc prosthesis (104) is provided. The prosthesis (104) may be provided with an insertion adapter (106), such as a head, holder, or other carrier of the prosthesis (104). The insertion adapter (106) may be configured to retain the prosthesis (104) and to engage an insertion tool body (130). In various embodiments, the prosthesis (104) and the insertion holder are provided in a sterile pack (102, 202), with the prosthesis (104) components and the insertion holder sterilized and packaged in one or more types or layers of sterile packaging (103a, 103b). In various other embodiments, the prosthesis (104) and an insertion tool (131) are provided in a sterile pack (102, 202), with the prosthesis (104) components and the insertion tool (131) sterilized and packaged in one or more types or layers of sterile packaging (103a, 103b).Type: GrantFiled: February 15, 2008Date of Patent: April 1, 2014Assignee: LDR MedicalInventors: Alexandre Jodaitis, Herve Dinville, Alexis Mercier
-
Patent number: 8632591Abstract: An nucleus prosthesis is disclosed having a plurality of linked segments configured to form, in a closed position, a disc shape. A method includes inserting a plurality of linked segments into an annulus fibrosus and closing the prosthesis so that a first segment inserted into the annulus fibrosus and a last segment inserted into the annulus fibrosus are substantially abutted. Another method includes inserting a plurality of linked segments into an intervertebral disc space and closing the prosthesis so that a first segment inserted into the intervertebral disc space and a last segment inserted into the intervertebral disc space are substantially abutted.Type: GrantFiled: October 17, 2007Date of Patent: January 21, 2014Assignee: LDR MedicalInventors: Thierry Vila, Henry Dufour, Jérôme Allain
-
Patent number: 8623087Abstract: An intervertebral cage includes a thin main wall having two return parts at opposite ends of the wall. The wall has an approximately constant thickness. The return parts are extended by facing end parts having a gap between them. The wall, the return parts and end parts delimit an inner cavity. The gap extends parallel to the wall and has a length between 50% and 100% of the cavity length. The gap length is preferably between 70% to 90% of the cavity length.Type: GrantFiled: June 22, 2007Date of Patent: January 7, 2014Assignee: LDR MedicalInventor: Jean Huppert
-
Publication number: 20130253651Abstract: Embodiments of instrumentation and methods are provided for the insertion of intervertebral disc prosthesis. The instrumentation of the embodiments comprises a guide comprising at least two lateral faces, at least one upper plate, at least one lower plate, at least one retainer, a cage defining an insertion axis for the prosthesis, and an angle adjuster adapted to adjust an angle formed by the insertion axis and an antero-posterior sagittal axis; and at least one separator sized to maintain a gap between the upper vertebra and the lower vertebra. Methods for implanting a prosthesis using the disclosed instrumentation comprise implanting a pin in the median sagittal axis of a vertebrae; measuring the dimensions of the intervertebral space; choosing the prosthesis; choosing the guide; adjusting the angle adjuster; positioning the guide adjacent to the intervertebral space; inserting the prosthesis into the guide; and inserting the prosthesis into the intervertebral space.Type: ApplicationFiled: May 13, 2013Publication date: September 26, 2013Applicant: LDR MedicalInventor: Hervé DINVILLE
-
Publication number: 20130166029Abstract: Anchoring devices, anchoring systems for intervertebral implants, intervertebral implants, and instruments and methods for implanting implants are disclosed. In preferred configurations, these various objects share the feature of comprising or cooperating with an anchoring device having a body comprising at least one curved plate elongated along a longitudinal axis, designed to be inserted through a passage crossing at least a part of implant, in order to penetrate into at least one vertebral endplate and attach implant onto this vertebral endplate by means of at least one stop retaining the implant, characterized in that the body comprises at least one longitudinal rib on at least a part of at least one of its faces, said rib being designed to cooperate with a groove made in passage of implant. In some preferred configurations, anchoring device comprises withdrawal stops or latches, and/or means for withdrawing the anchor from an inserted position.Type: ApplicationFiled: June 29, 2012Publication date: June 27, 2013Applicant: LDR MEDICALInventors: Hervé DINVILLE, Samuel LEQUETTE, Manuel DELHAYE, Henry François PARENT, Alexis FALINE, Pablo LAWNER, Faissal ZAHRAWI, Thomas BIERSTEDT
-
Patent number: 8465546Abstract: In various embodiments, an intervertebral disc prosthesis is provided. The prosthesis may be provided with an insertion adapter, such as a head, holder, or other carrier of the prosthesis. The insertion adapter may be configured to retain the prosthesis and to engage an insertion tool body. In various embodiments, the prosthesis and the insertion holder are provided in a sterile pack, with the prosthesis components and the insertion holder sterilized and packaged in one or more types or layers of sterile packaging. In various other embodiments, the prosthesis and an insertion tool are provided in a sterile pack, with the prosthesis components and the insertion tool sterilized and packaged in one or more types or layers of sterile packaging.Type: GrantFiled: February 16, 2007Date of Patent: June 18, 2013Assignee: LDR MedicalInventors: Alexandre Jodaitis, Herve Dinville, Alexis Mercier
-
Publication number: 20130150968Abstract: Anchoring devices, anchoring systems for intervertebral implants, intervertebral implants, and instruments and methods for implanting implants are disclosed. In preferred configurations, these various objects share the feature of comprising or cooperating with an anchoring device (1) having a body comprising at least one curved plate (10) elongated along a longitudinal axis (L), designed to be inserted through a passage (21) crossing at least a part of implant (2), in order to penetrate into at least one vertebral endplate and attach implant (2) onto this vertebral endplate by means of at least one stop retaining the implant, characterized in that the body comprises at least one longitudinal rib (11) on at least a part of at least one of its faces, said rib (11) being designed to cooperate with a groove (211) made in passage (21) of implant (2).Type: ApplicationFiled: December 31, 2009Publication date: June 13, 2013Applicant: LDR MedicalInventors: Hervé Dinville, Samuel Lequette, Manuel Delhaye, Henry Francois Parent, Alexis Faline, Pablo Lawner, Faissal Zahrawi, Thomas Bierstedt
-
Patent number: 8439931Abstract: Embodiments of instrumentation and methods are provided for the insertion of intervertebral disc prosthesis. The instrumentation of the embodiments comprises a guide comprising at least two lateral faces, at least one upper plate, at least one lower plate, at least one retainer, a cage defining an insertion axis for the prosthesis, and an angle adjuster adapted to adjust an angle formed by the insertion axis and an antero-posterior sagittal axis; and at least one separator sized to maintain a gap between the upper vertebra and the lower vertebra. Methods for implanting a prosthesis using the disclosed instrumentation comprise implanting a pin in the median sagittal axis of a vertebrae; measuring the dimensions of the intervertebral space; choosing the prosthesis; choosing the guide; adjusting the angle adjuster; positioning the guide adjacent to the intervertebral space; inserting the prosthesis into the guide; and inserting the prosthesis into the intervertebral space.Type: GrantFiled: May 5, 2009Date of Patent: May 14, 2013Assignee: LDR MedicalInventor: Hervé Dinville
-
Patent number: 8430915Abstract: A spinal internal implantation device for osteosynthesis has one or more bars for supporting for moving the spine and at least one implant for connecting the bars and vertebrae. The implant includes a blown anchor attached to a body of the implant and a fixation arrangement for the bars. The fixation arrangement includes a clamp for clamping the bar against internal walls of a channel formed in the body of the implant. At least part of the length of the bars includes a transversal bearing structure that is a cross-section of the bars having at least one flat part of a part having a lower forepost convexity than the rest of the cross section.Type: GrantFiled: March 23, 2009Date of Patent: April 30, 2013Assignee: LDR MedicalInventors: Jacques Beaurain, Joel Delecrin, Michel Onimus, Isabelle Koenig, Alain Ducolombier, Marc Pierunek, Hervé Chataigner, Marielle Derosi, Agnès De Postel
-
Patent number: 8409288Abstract: This present invention concerns a transforaminal intersomatic cage for an intervertebral fusion graft, and an instrument and method for implanting the cage, an embodiment of the cage having a body in the shape of a circular arc and comprising a lateral concave surface, a lateral convex surface, a straight upper surface, a straight lower surface and an end wall having at least one hole, called the end hole, designed to receive a rod of an instrument for implanting the cage between the vertebrae, wherein: the end hole has an orientation that is more or less tangential to the circular arc described by the body; the extremity opposite to the end wall of the body includes a return part extending the body toward the center of the circle on which the circular arc described by the body lies.Type: GrantFiled: March 17, 2006Date of Patent: April 2, 2013Assignee: LDR MedicalInventors: Reginald James Davis, Kevin Kaufman, Greg Hoffman, Alan McGee, Jean Huppert, Hugues Mousselard, Ludovic Rillardon
-
Patent number: 8343219Abstract: An intersomatic cage, an intervertebral prosthesis, an anchoring device and an instrument for implantation of the cage or the prosthesis and the anchoring device are provided. An intersomatic cage or an intervertebral prosthesis fit closely to the anchoring device, which includes a body of elongated shape on a longitudinal axis, of curved shape describing, along the longitudinal axis, an arc whose dimensions and radius of curvature are designed in such a manner that the anchoring device may be implanted in the vertebral plate of a vertebra by presenting its longitudinal axis substantially along the plane of the intervertebral space, where the anchoring device is inserted, by use of the instrument, through a slot located in at least one peripheral wall of the cage or on at least one plate of the intervertebral disc prosthesis to penetrate into at least one vertebral plate.Type: GrantFiled: June 6, 2008Date of Patent: January 1, 2013Assignee: LDR MedicalInventors: Jérôme Allain, Jean Lombard, Jeff Phelps, Pierce D. Nunley, Charles Gordon, Vincent J. Leone, Michael M. D. Hisey
-
Publication number: 20120330424Abstract: The present invention relates to an intervertebral disc prosthesis comprising at least three pieces including an upper plate (1), a lower plate (2), and a movable core (3) at least in relation to a plate, wherein it also comprises two anatomic adaptation elements (11, 22) of which each has, on one hand, a surface (110, 220) in contact with a surface of a vertebra and, on the other hand, a surface (111) of which at least a part has a surface in contact with at least a part of the plate (1 or 2) opposite to which the anatomic adaptation element (11 or 22) is mounted, the anatomic adaptation elements (11, 22) being fixed onto the plates (1, 2) via fixation means (113, 223).Type: ApplicationFiled: September 4, 2012Publication date: December 27, 2012Applicant: LDR MEDICALInventor: Willem Zeegers
-
Publication number: 20120265248Abstract: Various methods, devices, and systems are disclosed that facilitate easier and more compact implantation of osteosynthesis devices. In some embodiments, implants are screwed into two vertebrae and a plate is used to hold and displace the spine. In some plate embodiments, at least one longitudinally elongated opening is disposed at one end of the plate and partially opening onto an edge of the plate. In some plate embodiments, at least one longitudinally elongated opening is disposed at one end of the plate having a portion sufficiently large to be inserted without disassembly in the fixation means of an implant already screwed into the spine when the fixation means are already assembled.Type: ApplicationFiled: April 24, 2012Publication date: October 18, 2012Applicant: LDR MEDICALInventors: Joël Delecrin, Jérôme Allain, Patrick Tropiano, Serge Ganglof, Rémi Poncer