ACETABULAR SUPPORT RING Russian patent published in 2018 - IPC A61F2/32 

FIELD: medicine.

SUBSTANCE: acetabular support ring is made of a metallic material, contains fastening protrusions, fastening elements. It differs by having an annular part with a spherical surface including an outer surface and an inner surface, as well as an aperture of a larger radius and an aperture of a smaller radius. The ring includes at least three fastening protrusions arranged at the edge of a smaller radius aperture, each of the protrusions is provided with at least one through-hole for a fastening element with a possibility of its angular stability, wherein the fastening protrusions are oriented inwardly of the hole, that the axes of the through-holes intersect at an angle in the range 105±15° to each other at one point coinciding with the center of the annular part, the fastening elements have the same length and modification, and the area of the smaller radius aperture is at least 25% and not more than 80% of the hemisphere area formed by the maximum radius of the annular portion.

EFFECT: possibility of access to the acetabulum to replace bone defects and increase the durability and reliability of attachment of the endoprosthesis acetabular component to the acetabulum, as well as to reduce the traumatism of revision endoprosthetics.

5 cl, 4 dwg