CPC G21G 4/06 (2013.01) [A61N 5/1001 (2013.01); A61F 9/007 (2013.01); A61M 2210/0612 (2013.01)] | 4 Claims |
1. A radiological insert with a central portion and a peripheral portion, the central portion being relatively thinner and the peripheral portion being relatively thicker, the central portion including an upwardly extending convex upper surface which extends above the peripheral portion and a substantially planar lower surface, wherein the peripheral portion extends below the substantially planar lower surface of the central portion.
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