Apparatus for restoration of the spine and methods of use thereof
First Claim
1. An intervertebral expansible implant, comprising:
- a plane of expansion intrinsic to the implant, wherein the implant includes a first length corresponding to a contracted configuration and a second length shorter than the first length corresponding to an expanded configuration;
first and second opposed plates wherein each plate includes a recess configured for engaging a portion of a respective vertebrae of two vertebrae adjacent each respective plate during use of the implant, wherein the first and second plates are intended to move away from one another according to the plane of expansion as the implant is expanded;
at least first and second implant end members monolithically integral with each of the opposed plates, wherein the opposed plates move away from one another as the end members are brought towards one another;
at least a first support and a second support, wherein each support is connected to respective first or second end members, and is disposed between the respective first or second end members and the first or second opposed plates, wherein each support is separated from a winged portion of at least one of the first and second opposed plates by a transverse slot extending over a length of each support; and
a retaining element configured to be retained by the implant after expansion to retain the implant, once expanded, in the expanded configuration, wherein;
the retaining element comprises a shaft integral with a head portion, wherein the head portion is larger than the shaft, the head portion including a top-surface,the first end member including an end-surface and a head-recess in the end-surface arranged adjacent to at least one aperture provided in the first end member, the at least one aperture configured for receiving one end of the retaining element,the at least one aperture is sized to receive and pass the shaft of the retaining element, andthe head-recess is sized to receive and retain the head portion of the retaining element, such that when the head portion of the retaining element is fully received into the head-recess, a top surface of the head portion sits flush with or below the end-surface.
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0 Petitions
Accused Products
Abstract
The subject disclosure are directed to systems, apparatuses, devices and methods for vertebral and spinal correction. In some embodiments, an expansible implant is provided which may be inserted between two vertebrae, for instance, for maintenance and/or restoration of the distance/space between vertebrae. The implant may include first and second opposed plates that are intended to move away from one another, and which engage portions of vertebrae via a recess provided for on a bearing surface of the plates. The implant may additionally include at least first and second opposed end members, where at least one of the end members includes an aperture configured for receiving at least a portion of a retaining element adapted for retaining the implant in an expanded configuration once the implant is expanded. Methods of treatment and methods of use of such implants for the alleviation of back pain (for example) are also provided herein.
128 Citations
24 Claims
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1. An intervertebral expansible implant, comprising:
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a plane of expansion intrinsic to the implant, wherein the implant includes a first length corresponding to a contracted configuration and a second length shorter than the first length corresponding to an expanded configuration; first and second opposed plates wherein each plate includes a recess configured for engaging a portion of a respective vertebrae of two vertebrae adjacent each respective plate during use of the implant, wherein the first and second plates are intended to move away from one another according to the plane of expansion as the implant is expanded; at least first and second implant end members monolithically integral with each of the opposed plates, wherein the opposed plates move away from one another as the end members are brought towards one another; at least a first support and a second support, wherein each support is connected to respective first or second end members, and is disposed between the respective first or second end members and the first or second opposed plates, wherein each support is separated from a winged portion of at least one of the first and second opposed plates by a transverse slot extending over a length of each support; and a retaining element configured to be retained by the implant after expansion to retain the implant, once expanded, in the expanded configuration, wherein; the retaining element comprises a shaft integral with a head portion, wherein the head portion is larger than the shaft, the head portion including a top-surface, the first end member including an end-surface and a head-recess in the end-surface arranged adjacent to at least one aperture provided in the first end member, the at least one aperture configured for receiving one end of the retaining element, the at least one aperture is sized to receive and pass the shaft of the retaining element, and the head-recess is sized to receive and retain the head portion of the retaining element, such that when the head portion of the retaining element is fully received into the head-recess, a top surface of the head portion sits flush with or below the end-surface. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for restoring an intervertebral space between two vertebral bones, comprising the steps of:
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percutaneously inserting into a body an expansible implant, wherein the expansible implant includes a contracted and an expanded configuration, and wherein the implant includes a first length corresponding to contracted configuration and a second length shorter than the first length corresponding to the expanded configuration, the implant comprises; first and second opposed plates, wherein each plate includes a recess configured for engaging a respective portion of the two vertebral bones during use of the implant, wherein the first and second plates are intended to move away from one another toward the respective vertebral bones as the implant is expanded; first and second implant end members monolithically integral with each of the opposed plates, wherein the opposed plates move away from one another as the end members are brought towards one another; at least a first support and a second support, wherein each support is connected to respective first or second end members, and is disposed between the respective first or second end members and the first or second opposed plates, wherein each support is separated from a winged portion of at least one of the first and second opposed plates by a transverse slot extending over a length of each support; and a retaining element configured to be retained by the implant after expansion to retain the implant, once expanded, in the expanded configuration, wherein; the retaining element comprises a shaft integral with a head portion, wherein the head portion is larger than the shaft, the head portion including a top-surface; at least one aperture provided in the first end member, the at least one aperture configured for receiving one end of the retaining element; the first end member including an end-surface and a head-recess in the end-surface arranged adjacent the aperture, wherein the aperture is sized to receive and pass the shaft of the retaining element, and the head-recess is sized to receive and retain the head portion of the retaining element, such that a top surface of the head portion sits flush with or below the end-surface; positioning the implant between the vertebral bones; and expanding the implant from the contracted configuration to the expanded configuration thereby restoring the intervertebral space. expanded, the retaining element retains the implant in the expanded configuration. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification