Anchoring device and system for an intervertebral implant, intervertebral implant and implantation instrument
First Claim
1. An instrument for implantation of an implant into an intervertebral space and for implantation into a vertebra of an anchor having a body comprising a rigid, elongated, curved plate having edges disposed on sides of the plate and an elongated rib projecting away from a broad surface of the plate between the edges, the instrument comprising:
- an impactor having an impactor head configured to push the anchor; and
an elongated guide having a gripping end and a pushing end, the guide comprisinga gripping device disposed at the gripping end and configured to grip the implant, anda guide head configured to at least partially accommodate the impactor head, the guide head comprising a side wall having at least one guidance surface having a radius of curvature substantially the same as a radius of curvature of the anchor plate and configured to receive an edge of the anchor plate and to guide the anchor into a passage of the implant; and
a groove disposed in an upper or lower wall of the guide head configured to receive the rib of the anchor and to guide the rib of the anchor during passage of the anchor through the guide head.
2 Assignments
0 Petitions
Accused Products
Abstract
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). In some preferred configurations, anchoring device (1) comprises withdrawal stops or latches (12), and/or means (40) for withdrawing the anchor from an inserted position.
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Citations
26 Claims
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1. An instrument for implantation of an implant into an intervertebral space and for implantation into a vertebra of an anchor having a body comprising a rigid, elongated, curved plate having edges disposed on sides of the plate and an elongated rib projecting away from a broad surface of the plate between the edges, the instrument comprising:
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an impactor having an impactor head configured to push the anchor; and an elongated guide having a gripping end and a pushing end, the guide comprising a gripping device disposed at the gripping end and configured to grip the implant, and a guide head configured to at least partially accommodate the impactor head, the guide head comprising a side wall having at least one guidance surface having a radius of curvature substantially the same as a radius of curvature of the anchor plate and configured to receive an edge of the anchor plate and to guide the anchor into a passage of the implant; and a groove disposed in an upper or lower wall of the guide head configured to receive the rib of the anchor and to guide the rib of the anchor during passage of the anchor through the guide head. - View Dependent Claims (2, 3, 4)
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5. A system for treatment of a spine comprising:
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an anchor comprising a body comprising a rigid, elongated, curved plate extending between a first end configured to penetrate into a vertebra and a second end configured for urging the anchor into a vertebra, the plate having a radius of curvature; and a connection for an anchor-extraction tool disposed along the body proximal to the posterior end; an intervertebral implant comprising at least one peripheral wall; a passage in the peripheral wall configured to receive the anchor through an exterior opening of the passage disposed along the peripheral wall and project the anchor toward the upper vertebra or the lower vertebra without deformation of the plate; and an access disposed along the peripheral wall configured to allow an anchor-extraction tool to reach the connection on the anchor when the anchor is fully inserted in the implant; and an instrument comprising; an impactor having an impactor head configured to push the anchor; and an elongated guide having a gripping end and a pushing end, the guide comprising a gripping device disposed at the gripping end and configured to grip the implant, and a guide head configured to at least partially accommodate the impactor head, the guide head comprising at least one guidance surface having a radius of curvature substantially the same as the radius of curvature of the anchor plate and configured to guide the anchor through a passage of the implant. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for anchoring an intervertebral implant comprising:
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a first anchor and a separate, independently orientable second anchor each having a body comprising a rigid elongated plate extending between a first end configured to penetrate into a vertebra and a second end configured for urging the anchor into a vertebra; a first stop disposed proximal to the second end of the first anchor; and a second stop disposed proximal to the second end of the second anchor;
withthe first stop and the second stop being configured for the first stop to contact the second anchor to retain the second anchor in an intervertebral implant and for the second stop to contact the first anchor to retain the first anchor in the intervertebral implant. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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21. A device for treatment of a spine comprising:
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an anchor comprising a leading end configured for penetration of vertebra and a trailing end having an abutment stop, a rigid plate elongated in an elongation direction extending from a first plate end disposed proximally to the trailing end to a second plate end disposed proximally to the leading end, the elongated rigid plate having a first surface curved in the elongated direction and a second surface curved in the elongated direction and disposed on an opposite side of the rigid plate from the first curved surface, and an elongated rib projecting from the first surface and extending in the elongation direction; and an intervertebral implant comprising at least one peripheral wall, a passage in the peripheral wall configured to receive the anchor through an exterior opening of the passage disposed along the peripheral wall and project a tip of the anchor away from a side of the intervertebral implant without deformation of the plate. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification