Source: http://www.google.com/patents/US7670377?dq=patent:7076806
Timestamp: 2017-06-26 02:20:02
Document Index: 378049582

Matched Legal Cases: ['Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'Application No. 60', 'art 130', 'art 130', 'art 130']

Patent US7670377 - Laterally insertable artifical vertebral disk replacement implant with ... - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inPatentsAn intervertebral disk implant is adapted to be placed between two vertebrae using a lateral insertion method. The implant is characterized by features including a first end plate having a first socket and a second end plate having a second socket with a spacer that is at least partially received in...http://www.google.com/patents/US7670377?utm_source=gb-gplus-sharePatent US7670377 - Laterally insertable artifical vertebral disk replacement implant with curved spacerAdvanced Patent SearchTry the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents.Publication numberUS7670377 B2Publication typeGrantApplication numberUS 10/981,923Publication dateMar 2, 2010Filing dateNov 5, 2004Priority dateNov 21, 2003Fee statusPaidAlso published asUS7691146, US20050113926, US20050283242Publication number10981923, 981923, US 7670377 B2, US 7670377B2, US-B2-7670377, US7670377 B2, US7670377B2InventorsJames F. Zucherman, Ken Y. Hsu, Steven T. MitchellOriginal AssigneeKyphon SarlExport CitationBiBTeX, EndNote, RefManPatent Citations (523), Non-Patent Citations (14), Referenced by (47), Classifications (18), Legal Events (7) External Links: USPTO, USPTO Assignment, EspacenetLaterally insertable artifical vertebral disk replacement implant with curved spacer
US 7670377 B2Abstract
An intervertebral disk implant is adapted to be placed between two vertebrae using a lateral insertion method. The implant is characterized by features including a first end plate having a first socket and a second end plate having a second socket with a spacer that is at least partially received in the first socket and the second socket. The implant includes at least one keel that is adapted to be inserted laterally into a vertebral body of the spine. The spacer allows for pivotal or rotational motion and also for twisting motion of the spine once the implant is inserted between vertebrae of a patient.
This application claims priority to U.S. Provisional Patent Application No. 60/524,350, filed Nov. 21, 2003, entitled “ARTIFICIAL VERTEBRAL DISK REPLACEMENT IMPLANT WITH A SPACER AND LATERAL IMPLANT METHOD,” which is incorporated herein by reference.
This application is related to U.S. Provisional Application No. 60/422,039, filed Oct. 29, 2002, entitled “ARTIFICIAL VERTEBRAL DISK REPLACEMENT IMPLANT WITH TRANSLATING PIVOT POINT AND METHOD,” U.S. patent application Ser. No. 10/684,669, filed Oct. 14,2003, entitled “ARTIFICIAL VERTEBRAL DISK REPLACEMENT IMPLANT WITH TRANSLATING PIVOT POINT AND METHOD,” U.S. Provisional Application No. 60/422,011, filed Oct. 29, 2002, entitled “TOOLS FOR IMPLANTING AN ARTIFICIAL VERTEBRAL DISK AND METHOD,” U.S. patent application Ser. No. 10/685,134, filed Oct. 14,2003, entitled “TOOLS FOR IMPLANTING AN ARTIFICIAL VERTEBRAL DISK AND METHOD,” U.S. Provisional Application No. 60/422,022, filed Oct. 29, 2002, entitled “ARTIFICIAL VERTEBRAL DISK REPLACEMENT IMPLANT WITH A SPACER AND METHOD,” U.S. patent application Ser. No. 10/685,011, filed Oct. 14, 2003, entitled “ARTIFICIAL VERTEBRAL DISK REPLACEMENT IMPLANT WITH SPACER AND METHOD,” and U.S. Provisional Application No. 60/517,973, filed Nov. 6, 2003, entitled “ARTIFICIAL VERTEBRAL DISK REPLACEMENT IMPLANT WITH CROSSBAR SPACER AND LATERAL IMPLANT METHOD,” U.S. patent application Ser. No. 10/981,863, filed Nov. 5, 2004, entitled “LATERALLY INSERTABLE ARTIFICIAL VERTEBRAL DISK REPLACEMENT IMPLANT WITH TRANSLATING PIVOT POINT,” U.S. patent application Ser. No. 10/981,807, filed Nov. 5, 2004 , entitled “METHOD OF LATERALLY INSERTING AN ARTIFICIAL VERTEBRAL DISK REPLACEMENT IMPLANT WITH TRANSLATING PIVOT POINT,” U.S. patent application Ser. No. 10/982,638, filed Nov 5, 2004, entitled “LATERALLY INSERTABLE ARTIFICIAL VERTEBRAL DISK REPLACEMENT IMPLANT WITH A CROSSBAR SPACER,” U.S. patent application Ser. No. 10/981,952, filed Nov. 5, 2004, entitled “METHOD OF LATERALLY INSERTING ARTIFICIAL VERTEBRAL DISK REPLACEMENT IMPLANT WITH A CROSSBAR SPACER,” U.S. patent application Ser. No. 10/981,945, filed Nov. 5, 2004, entitled “METHOD OF LATERALLY INSERTING AN ARTIFICIAL VERTEBRAL DISK REPLACEMENT IMPLANT WITH A SPACER,” all of which are incorporated herein by reference.
This field of art of this disclosure is directed to an artificial vertebral disk replacement and method.
FIG. 1A is a side perspective view of an embodiment of the assembled implant 100. FIG. 1B is an alternative side perspective view of an embodiment of the assembled implant 100.
FIG. 3A is a perspective view of a spacer of an embodiment of implant 100. FIG. 3B and FIG. 3C are cross-sections of the spacer of an embodiment of implant taken at 90° angles respective to each other.
The following description is presented to enable any person skilled in the art to make and use what is disclosed. Various modifications to the embodiments described will be readily apparent to those skilled in the art, and the principles defined herein can be applied to other embodiments and applications without departing from the spirit and scope of what is disclosed and defined by the appended claims. Thus, what is disclosed is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein. To the extent necessary to achieve a complete understanding of what is disclosed herein, the specification and drawings of all patents and patent applications cited in this application are incorporated herein by reference.
FIG. 1A shows an embodiment of implant 100. The designations, “A” for anterior, “P” for posterior, “RL” for right lateral, and “LL” for left lateral are given in the drawings for spatial orientation. These designations give the relationship of all faces of implant from the superior perspective; i.e. looking down the axis of the spine. Implant 100 has a first end plate, or upper end plate 110 that is configured to mate with a first vertebra, and a second end plate, or lower end plate 120 that is configured to mate with a second vertebra. A third part 130 that sits between the first end plate 110 and the second end plate 120 is also provided. The third part 130 acts as a spacer between the first end plate 110 and the second end plate 120 and facilitates pivotal or rotational and also twisting movement of the first end plate 110 and the second end plate 120, relative to each other. The third part 130, the spacer, is dimensioned so that it has a curved or convex upper surface and a curved or convex lower surface, as discussed in more detail below.
In FIG. 2 c, the first socket 210 has a first dimension 212. In the first dimension 212, the first socket 210 is concave such that it is curved like the inner surface of a cylinder. In FIG. 2 d, the second dimension 214 is in the form of a trough or “flattened-U” with a previously indicated concave bottom surface 211 and two ends or sidewalls 213, 215. As shown in FIG. 2 d, the ends or sidewalls 213, 215 are parallel to each other and perpendicular to the bottom surface 211. However, as will be appreciated by those of ordinary skill in the art, the ends or sidewalls 213, 215 can be formed at an angle relative to each other without departing from the scope of what is disclosed.
In FIG. 2 e, the second socket 240 has a first dimension 242. The first dimension 242 is in the form of a trough or “flattened-U” with a bottom concave surface 241 and two ends or sidewalls 243,245. As shown in FIG. 2 f, the ends or sidewalls 243, 245 are parallel to each other and perpendicular to the bottom surface 241. However, as will be appreciated by those of ordinary skill in the art, the ends or sidewalls 243, 245 can be formed at an angle relative to each other without departing from the scope of what is disclosed. In FIG. 2 f, the second dimension 242 of the second socket 240 is concave such that it is curved like the inner surface of a cylinder.
FIG. 3 b and FIG. 3 c show cross-sections of the spacer 130, shown in FIG. 3 a. The cross-section of FIG. 3 b is taken at a 90° angle from the cross-section shown in FIG. 3 c. FIG. 3 b is taken through a plane parallel to the ends 312, 314 and FIG. 3 c is taken through a plane parallel to ends 316, 318. The spacer 130 has a concave upper surface 310 and a concave lower surface 320 and pairs of parallel sides 312, 314 and 314, 318.
FIG. 4 a and FIG. 4 b show sections for an embodiment of implant 100. FIG. 4 a shows a cross-section of implant 100 in its assembled condition taken along a plane that would correspond to a plane that is parallel to the median sagittal plane of the body of a patient after implant 100 was inserted. FIG. 4 b shows a cross-section of implant 100 in its assembled condition taken at 90° from the cross-section shown in FIG. 4 a, which is parallel to the frontal (coronal) plane, or perpendicular to the sagittal plane of the body of a patient after implant 100 was inserted. The implant 100 has a first upper end plate 110 that is configured to mate with a first vertebra and a second lower end plate 120 that is configured to mate with a second vertebra. The spacer 130 sits between the upper end plate 110 and the lower end plate 120. As previously mentioned, the first upper axis 217 is an axis of articulation for first end plate 110 about the spacer 130 for this embodiment, while the first lower axis 247 is an axis of articulation of the lower end plate 120 about the spacer 130. Further, first upper axis 217 is perpendicular to the first lower axis 247. FIG. 4 a, in particular, indicates how the first and second keels, 114,124, are aligned with and support the lateral axis of articulation defined by the first upper axis 217. The first and second keels 114,124 in this orientation offers substantial stability during extension and flexion for implant 100 inserted between the vertebrae of a patient. As in all of the embodiments described herein, the keels are about perpendicular to the sagittal plane of the body of a patient and suitable for lateral insertion into the spine of a patient.
FIG. 5 c shows a cross-section of implant 100 in its assembled condition taken along a plane that would correspond to a plane that is parallel to the median sagittal plane of the body of a patient after implant 100 was inserted. FIG. 5 d shows a cross-section of implant 100 in its assembled condition taken at 90° from the cross-section shown in FIG. 5 c, which is parallel to the frontal (coronal) plane, or perpendicular to the sagittal plane of the body of a patient after implant 100 was inserted. The implant 100 has a first upper end plate 110 that is configured to mate with a first vertebra and a second lower end plate 120 that is configured to mate with a second vertebra. The spacer 130 sits between the upper end plate 110 and the lower end plate 120. As previously mentioned, the first and second upper axes 217,219 define a first point of articulation for first end plate 110 about the spacer 130 for this embodiment, while the first and second lower axes 247,249 define a second point of articulation of the lower end plate 120 about the spacer 130. FIG. 5 c and FIG. 5 d indicate how the first and second keels, 114,124, are aligned with and support the first and second points of articulation 119,121. The first and second keels 114,124 in this orientation offer substantial stability during extension and flexion for implant 100 inserted between the vertebrae of a patient.
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