Holder for intervertebral prostheses
An arrangement includes a holder for holding intervertebral prostheses, at least two intervertebral prostheses of different widths which each have two end plates with ventral flanges and a joint core arranged between the end plates. The holder includes a support plate with at least one opening formed therein that is configured to receive one of the intervertebral prostheses and has a width which is greater that the maximum width of the intervertebral prostheses. A pair of steps is formed on at least one longitudinal edge of the opening that has flanks that are directed toward one another and spaced apart such that the flange of the intervertebral prosthesis inserted into the opening is centered in the opening. The pair of steps can be configured as projections or depressions.
1 . An arrangement comprising a holder configured for holding intervertebral prostheses, at least two intervertebral prostheses of different widths which each consist of two end plates with ventral flange flanges and a joint core arranged between the end plates,
the holder comprising a support plate with at least one opening formed therein the opening being configured to receive one of the intervertebral prostheses and having a width which is greater than the maximum width of the intervertebral prostheses,
wherein a pair of steps is formed on at least one longitudinal edge of the opening and their the steps having flanks directed toward one another and spaced apart such that the flange of the intervertebral prosthesis inserted into the opening is centered in the opening.
2 . The arrangement as claimed in claim 1 , wherein the pair of steps is configured as projections.
3 . The arrangement as claimed in claim 1 , wherein the pair of steps is configured as depressions.
4 . The arrangement as claimed in claim 1 , 2 , or 3 , wherein the flanks taper conically toward one another, the spacing between the flanks decreasing toward the support plate.
5 . The arrangement as claimed in claim 1 , 2 or 3 , wherein a spacing between the flanks is such that, at a deepest point of the flanks matches the width of the flange.
6 . The arrangement as claimed in claim 1 , wherein the support plate further comprises top parts with a guide.
7 . The arrangement as claimed in claim 6 , wherein the guide is designed as a channel with a U-shaped cross section.
8 . The arrangement as claimed in claim 6 or 7 , wherein the top parts are configured in one piece with the pair of steps.
9 . The arrangement as claimed in claim 1 , 2 or 3 , wherein the opening is closed at the bottom.
10 . The arrangement as claimed in claim 1 , 2 or 3 , wherein the support plate is formed in one piece with a substructure.
11 . The arrangement as claimed in claim 1 , 2 or 3 , wherein the support plate is shaped from a web material.
12 . The arrangement as claimed in claim 11 , wherein the web material is deep-drawn.
13 . The arrangement as claimed in claim 1 , 2 or 3 , wherein the opening is closed by means of a cover.
14 . The arrangement as claimed in claim 4 , wherein a spacing between the flanks is such that, at a deepest point of the flanks matches the width of the flange.
15 . The arrangement as claimed in claim 1 , wherein the flanks taper conically toward one another, the spacing between the flanks decreasing toward the support plate, and the support plate further comprises top parts with a guide.
16 . The arrangement as claimed in claim 15 , wherein the guide is designed as a channel with a U-shaped cross section.
17 . The arrangement as claimed in claim 15 or 16 , wherein the top parts are configured in one piece with the pair of steps.
18 . The arrangement as claimed in claim 1 , wherein the flanks taper conically toward one another, the spacing between the flanks decreasing toward the support plate and the opening is closed at the bottom.
19 . The arrangement as claimed in claim 18 , wherein the support plate is formed in one piece with a substructure.
20 . The arrangement as claimed in claim 18 , wherein the support plate is shaped from a web material.
21 . The arrangement as claimed in claim 20 , wherein the web material is deep-drawn.
22 . The arrangement as claimed in claim 18 , wherein the opening is closed by means of a cover.