Bi-directional fixating transvertebral body screws and posterior cervical and lumbar interarticulating joint calibrated stapling devices for spinal fusion
DC CAFCFirst Claim
1. A universal, intervertebral combination internal screw guide and fixation apparatus configured to be inserted into a disc space between a first vertebral body and a second vertebral body and to provide fusion of the first vertebral body to the second vertebral body via biological bone fusion and screw fusion, the apparatus comprising:
- an intervertebral cage including;
a top wall, a bottom wall, and two sidewalls defining an open space capable of receiving bone filling for the biological bone fusion; and
an internal screw guide having an internal bore with an entry opening and an exit opening, the entry opening of the internal bore formed only in a top surface of the top wall and the exit opening formed at least partially in a bottom surface of the top wall and at least partially in a side surface of the top wall,wherein the side surface of the top wall is patterned with a plurality of surface features to create a rough side surface, wherein at least some of the plurality of surface features are positioned on the side surface closer to the top surface of the top wall than the exit opening,wherein a threaded hole extends through the top wall in a direction substantially normal to the top surface of the top wall with a diameter of the threaded hole being smaller than a diameter of the internal screw guide, andwherein a rectangular indentation extends into at least part of the top wall and is oriented with at least one side of the rectangular indentation being substantially parallel to the side surface of the top wall.
4 Assignments
Litigations
1 Petition
Accused Products
Abstract
A self-drilling bone fusion screw apparatus is disclosed which includes at least first and second sliding boxes. A first screw member having a tapered end and a threaded body is disposed within the first sliding box, and a second screw member having a tapered end and a threaded body disposed within the second sliding box. An adjuster adjusts the height of the sliding boxes. The screw members are screwed into vertebral bodies in order to fuse the vertebral bodies together. A plurality of the self-drilling bone fusion screw apparatuses may be attached together and/or integrated via a plate or cage. Also disclosed is a cervical facet staple that includes a curved staple base and at least two prongs attached to the bottom surface of the curved staple base.
204 Citations
70 Claims
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1. A universal, intervertebral combination internal screw guide and fixation apparatus configured to be inserted into a disc space between a first vertebral body and a second vertebral body and to provide fusion of the first vertebral body to the second vertebral body via biological bone fusion and screw fusion, the apparatus comprising:
an intervertebral cage including; a top wall, a bottom wall, and two sidewalls defining an open space capable of receiving bone filling for the biological bone fusion; and an internal screw guide having an internal bore with an entry opening and an exit opening, the entry opening of the internal bore formed only in a top surface of the top wall and the exit opening formed at least partially in a bottom surface of the top wall and at least partially in a side surface of the top wall, wherein the side surface of the top wall is patterned with a plurality of surface features to create a rough side surface, wherein at least some of the plurality of surface features are positioned on the side surface closer to the top surface of the top wall than the exit opening, wherein a threaded hole extends through the top wall in a direction substantially normal to the top surface of the top wall with a diameter of the threaded hole being smaller than a diameter of the internal screw guide, and wherein a rectangular indentation extends into at least part of the top wall and is oriented with at least one side of the rectangular indentation being substantially parallel to the side surface of the top wall. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. A universal, intervertebral combination internal screw guide and fixation apparatus configured to be inserted into a disc space between a first vertebral body and a second vertebral body and to provide fusion of the first vertebral body to the second vertebral body via biological bone fusion and screw fusion, the apparatus comprising:
an intervertebral cage including; a top wall, a bottom wall, and two sidewalls defining an open space capable of receiving bone filling for the biological bone fusion; an internal screw guide having an internal bore with an entry opening and an exit opening, the entry opening of the internal bore formed only in a top surface of the top wall and the exit opening formed at least partially in a bottom surface of the top wall and at least partially in a side surface of the top wall; a second internal screw guide having a second internal bore with a second entry opening and a second exit opening, the second entry opening of the second internal bore formed only in the top surface of the top wall and the second exit opening formed at least partially in the bottom surface of the top wall and at least partially in a second side surface of the top wall; and a circular hole extending into the top wall in a direction substantially normal to the top surface of the top wall and positioned between the internal screw guide and the second internal screw guide at the top surface of the top wall, wherein the expandable cage is formed from at least first and second parts that combine to form the top wall, the bottom wall, and the two sidewalls, wherein the first part defines at least part of the top wall and the side walls and the second part defines the at least part of bottom wall and the side walls. - View Dependent Claims (43, 44, 45, 46)
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47. A universal, intervertebral combination internal screw guide and fixation apparatus configured to be inserted into a disc space between a first vertebral body and a second vertebral body and to provide fusion of the first vertebral body to the second vertebral body via biological bone fusion and screw fusion, the apparatus comprising:
an intervertebral cage including; a top wall, a bottom wall, and two sidewalls defining an open space capable of receiving bone filling for the biological bone fusion; an internal screw guide having an internal bore with an entry opening and an exit opening, the entry opening of the internal bore formed only in a top surface of the top wall and the exit opening formed at least partially in a bottom surface of the top wall and at least partially in a side surface of the top wall, wherein the internal screw guide further includes a counterbore that is larger than and coaxial with the internal bore and has a counterbore entry opening that is formed only in the top surface of the top wall; a second internal screw guide having a second internal bore with a second entry opening and a second exit opening, the second entry opening of the second internal bore formed only in the top surface of the top wall and the second exit opening formed at least partially in the bottom surface of the top wall and at least partially in a second side surface of the top wall; and a circular hole extending through the top wall in a direction substantially normal to the top surface of the top wall, wherein the circular hole is positioned between the internal screw guide and the second internal screw guide at the top surface of the top wall. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
Specification