Rim-bearing acetabular component of hip joint prosthesis
CA 1329865 C · Owner: Smith & Nephew, Inc. · Inventors: Shelley, Philip
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An acetabular implant for a hip joint prosthesis comprising a metal cup shell (2) adapted to be secured in the acetabulum of a patient. The metal cup shell (2) has a hemispherical cavity (6) into which a liner may be inserted to provide a spherical bearing surface for the ball portion of the hip joint. Screws (26, 28) may be inserted through three apertures (20, 22 and 24) in the metal cup shell (2) into the ilium, ischium and pubic ramus of the patient. A continuous circumferential flange (8) is provided around the opening of the cavity (6). The flange (8) has an outside diameter which is at least 10% greater than the outside diameter of the remainder of the metal cup shell (2) at its …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted May 31, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 31, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.