Protrusio cup

Details Protrusio cup Protrusio cup

1984-03-07

1986-11-18

Apley, Richard J.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Implantable prosthesis

Bone

A61F 234

Patent

active

046233520

ABSTRACT:
A protrusio cup for implantation in the acetabulum, including an acetabular cup and a protrusio shell mounted on the acetabular cup by interlocking grooves and projections. The acetabular cup has a hemispherical bearing surface which terminates in a part-conical surface. The bearing surface and the part-conical surface are rotated through an angle to reduce the likelihood of dislocation and to increase the range of motion.

REFERENCES:
patent: D232004 (1874-07-01), Amstutz
patent: D232005 (1874-07-01), Farling
patent: D235377 (1875-06-01), Medcraft
patent: 3608096 (1971-09-01), Link
patent: 3722002 (1973-03-01), Charnley
patent: 3829904 (1974-08-01), Ling et al.
patent: 3903549 (1975-09-01), Deyerle
patent: 3922726 (1975-12-01), Trentani et al.
patent: 4327449 (1982-05-01), Charnley
patent: 4437193 (1904-03-01), Oh
"Protrusio Shell Surgical Technique", Howmedica Surgical Techniques, Indong Oh, M.D., et al., Howmedica, Inc., 1978.

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