Various embodiments of intervertebral implants, anchoring devices for intervertebral implants, and implantation instrumentation are provided, along with various embodiments of methods for using one or more of the devices. Some embodiments of an anchoring device have a body comprising at least one curve and a rigid plate elongated along a longitudinal axis so that its front end enters at least one vertebra while its rear end remains in the passage of an implant. In some embodiments, the plate comprises at least one longitudinal slot separating at least one posterior portion of the plate into two branches, with at least one branch comprising at least one withdrawal stop configured to retain the device in the implant.

An implant constituted of: a body exhibiting a longitudinal axis; proximal arms extending from the body, each of the proximal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the proximal arms; distal arms extending from the body, each of the distal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the respective directions of extension of the distal arms generally opposing the respective directions of extension of the proximal arms, the body positioned between the distal arms; and intermediate arm assemblies extending from the body, each of the intermediate arm assemblies extending in a respective direction rotated about the longitudinal axis from the respective extension directions of the proximal arms and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the intermediate arm assemblies.

An implant constituted of: a body exhibiting a longitudinal axis; proximal arms extending from the body, each of the proximal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the proximal arms; distal arms extending from the body, each of the distal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the respective directions of extension of the distal arms generally opposing the respective directions of extension of the proximal arms, the body positioned between the distal arms; and intermediate arm assemblies extending from the body, each of the intermediate arm assemblies extending in a respective direction rotated about the longitudinal axis from the respective extension directions of the proximal arms and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the intermediate arm assemblies.

Arcuate fixation members with varying configurations and/or features are provided, along with additional components for use therewith in provided fixation systems and intervertebral implant systems. The arcuate fixation members may be of varying lengths, cross sectional geometries, and/or cross sectional areas, and may be configured with various features such as heads configured to accept other fixation system components, tabs to allow arcuate fixation member-in-arcuate fixation member or fixation anchor-in-arcuate fixation member configurations. Applications of fixation systems and intervertebral implants systems utilizing arcuate fixation members are particularly suitable when a linear line-of-approach for delivering fixation members is undesirable.

An implant constituted of: a body exhibiting a longitudinal axis; proximal arms extending from the body, each of the proximal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the proximal arms; distal arms extending from the body, each of the distal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the respective directions of extension of the distal arms generally opposing the respective directions of extension of the proximal arms, the body positioned between the distal arms; and intermediate arm assemblies extending from the body, each of the intermediate arm assemblies extending in a respective direction rotated about the longitudinal axis from the respective extension directions of the proximal arms and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the intermediate arm assemblies.

Arcuate fixation members with varying configurations and/or features are provided, along with additional components for use therewith in provided fixation systems and intervertebral implant systems. The arcuate fixation members may be of varying lengths, cross sectional geometries, and/or cross sectional areas, and may be configured with various features such as heads configured to accept other fixation system components, tabs to allow arcuate fixation member-in-arcuate fixation member or fixation anchor-in-arcuate fixation member configurations. Applications of fixation systems and intervertebral implants systems utilizing arcuate fixation members are particularly suitable when a linear line-of-approach for delivering fixation members is undesirable.

Various embodiments of intervertebral implants, anchoring devices for intervertebral implants, and implantation instrumentation are provided, along with various embodiments of methods for using one or more of the devices. Some embodiments of an anchoring device have a body comprising at least one curve and a rigid plate elongated along a longitudinal axis so that its front end enters at least one vertebra while its rear end remains in the passage of an implant. In some embodiments, the plate comprises at least one longitudinal slot separating at least one posterior portion of the plate into two branches, with at least one branch comprising at least one withdrawal stop configured to retain the device in the implant.

An implant constituted of: a body exhibiting a longitudinal axis; proximal arms extending from the body, each of the proximal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the proximal arms; distal arms extending from the body, each of the distal arms extending in a respective direction and exhibiting a respective acute angle with the longitudinal axis, the respective directions of extension of the distal arms generally opposing the respective directions of extension of the proximal arms, the body positioned between the distal arms; and intermediate arm assemblies extending from the body, each of the intermediate arm assemblies extending in a respective direction rotated about the longitudinal axis from the respective extension directions of the proximal arms and exhibiting a respective acute angle with the longitudinal axis, the body positioned between the intermediate arm assemblies.

Various embodiments of intervertebral implants, anchoring devices for intervertebral implants, and implantation instrumentation are provided, along with various embodiments of methods for using one or more of the devices. Some embodiments of an anchoring device have a body comprising at least one curve and a rigid plate elongated along a longitudinal axis so that its front end enters at least one vertebra while its rear end remains in the passage of an implant. In some embodiments, the plate comprises at least one longitudinal slot separating at least one posterior portion of the plate into two branches, with at least one branch comprising at least one withdrawal stop configured to retain the device in the implant.

The present invention relates to various embodiments of anchoring devices for intervertebral implants, intervertebral implant and implantation of instrumentation, sharing the characteristic to cooperate with the anchoring device (1) comprising a body comprising at least one curve, rigid plate (10) elongated along a longitudinal axis (L) so that its front end enters at least one vertebra while its rear end remains in the passage (21) of the implant (2) by pressing said implant (2) against said vertebra with at least one retaining stop (14), the device (1) being characterized in that the plate (10) comprises at least one longitudinal slot (11) separating at least one posterior portion of the plate (10) into two branches (12, 13) which at least one comprises at least one withdrawal stop (15) configured to retain the device (1) in the implant (2).