Artificial hip joint
AssigneesSulzer Brothers Limited, Protek AG
InventorMaurice E. Muller
Life of this patent
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Abstract
The socket is made with a bowl having a spherical cap in the polar region and a part-spherical section which extends from the spherical cap on a larger diameter. The two sections join together at a distance from the top of the bowl socket which is 1/3 the diameter of the spherical cap while the diameter of the part-spherical section is from 1.02 to 1.10 times the diameter of the spherical cap. The diameters of the spherical cap and the part-spherical section intersect the axis of symmetry of the socket body, one on the equatorial plane and the other below the equatorial plane.
Claims6
An artificial hip joint socket for receiving a joint head, said socket having a socket bowl disposed in symmetric relation about a longitudinal axis with a spherical section at a polar region of a first diameter to define a spherical cap of a height equal to 1/3 said first diameter, and an annular part-spherical section extending from said spherical section on a second diameter greater than said first diameter.
Dependencies are inferred from the claim text.