| 摘要 |
A cotyle including a metallic insertion acetabular shell having an outer, essentially hemispherical, convex anchoring face formed in such a way as to be anchored in a cotyloid cavity of the pelvis of a patient, and a concave receiving face. The cotyle also includes a fixed definitive articular ceramic insert having an outer face engaging in the concave receiving face of the metallic insertion acetabular shell, and an inner receiving face including a concave, essentially hemispherical, articular surface for allowing the engagement and pivoting of a femoral prosthesis head or a mobile articular insert. The cotyle is packed in its assembled sterile state, with the definitive fixed articular ceramic insert engaged in the metallic insertion acetabular shell having a peripheral receiving structure that can receive means for fixing an impacter for positioning a cotyle and is designed in such a way that the impacter can be fixed to the cotyle in the presence of the definitive fixed articular ceramic insert. |
| 主权项 |
1. Ex-vivo cotyle assembly comprising:
a metal insertion shell (1), having a substantially hemispherical convex exterior anchor face (2) conformed to be anchored in a cotyle cavity in the pelvis of a patient, and having a concave receiving face (3) with an annular edge (9), a ceramic fixed final joint insert (4), distinct from, and being manufactured separately from, the insertion shell (1), having an exterior face (5) ex-vivo engaged in the concave receiving face (3) of the insertion shell (1), and having an interior receiving face (6) including a substantially hemispherical concave joint surface (7) to enable the engagement and the pivoting of a femoral prosthesis head or of a mobile joint insert, the ceramic fixed final joint insert (4) having a thickness (E′) less than or equal to approximately 4 mm, wherein: the insertion shell (1) has, in a vicinity of its annular edge (9), a thickness (E) less than or equal to approximately 4 mm and greater than 2 mm, the insertion shell (1) comprises a peripheral receiving structure (8) projecting beyond the receiving face (6) of the fixed final joint insert (4) inserted in the insertion shell (1) and including an annular receiving face (10), wherein the insertion shell (1) and the ceramic fixed final joint insert (4) each have conical surfaces, wherein said conical surfaces bear upon each other when the insert (4) is impacted against the insertion shell (1), and wherein a placement and orientation insert (11), including an assembly structure (12) to which the impacter (15) can be removably fixed, is removably fixed to the annular receiving face (10) of the insertion shell (1) in the presence of the ceramic fixed final joint insert (4), in order to enable an impaction of the ex-vivo assembly into the pelvis of a patient, providing a simultaneous impaction of the metal insertion shell (1) and of the ceramic fixed final joint insert (4) into the pelvis of the patient, and wherein the insertion shell (1), the ceramic fixed final joint insert (4) and the placement and orientation insert (11) are assembled and packaged in a microbial protection envelope in a sterile state, with the ceramic fixed final joint insert (4) engaged in the insertion shell (1), and with the placement and orientation insert (11) fixed to the insertion shell (1). |
