Device for handling ball heads of joint prostheses
AssigneeCeramtec AG Innovative Ceramic Engineering
InventorsManek Buttermilch, Ernst Hoch, Hartmut Kalberer, Paul Silberer
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Abstract
A protective cap for prosthetic joints having one element in the form of a ball head, especially in the case of hip end-prosthetic joints, protects the ball head when it is positioned and fixed on the cone of the shank by the surgeon by hand. A crown is arranged on the pole of the protective cap. The crown is in the form of a plate for, the shape of the plate and its extent relative to the protective cap being such that it is possible to grip behind the plate on the side that faces the protective cap.
Claims15
Device for handling ball heads of prosthetic joints, comprising a protective cap covering the surface of each ball head to beyond the equatorial diameter before being positioned on the cone of a shank, so that the protective cap is held automatically on the ball head and is removed without a tool after the ball head is attached to the cone of the shank, and a crown arranged on the pole of the protective cap in the form of a plate, the shape of the plate and its extent relative to the protective cap being such that it is possible to grip behind the plate on the side facing the protective cap.
A device for handling a ball head of a prosthetic joint, comprising:
- a protective cap to cover the ball head to beyond the equatorial diameter of the ball head, the protective cap having an internal shape substantially corresponding to an external shape of the portion of the ball head to be covered by the protective cap and comprising a plurality of blades extending from the pole of the protective cap and distributed around the circumference of the cap, the blades being separated from each other at lower ends opposite the pole;
- and
- a crown provided at the pole of the protective cap, the crown including a plate having a dimension, measured perpendicular to a connecting line extending from a center point of the ball head to the pole of the protective cap, relative to the protective cap at the pole such that it is possible to grip behind the plate on a side facing the protective cap.
Dependencies are inferred from the claim text.