초록 ▼

A cup and a temporary insert are respectively configured to be tightly press fitted into each other along their periphery. The temporary insert includes a through hole communicating outside with a free space between the outer surface of the temporary insert and the inner surface of the cup. In the t

A cup and a temporary insert are respectively configured to be tightly press fitted into each other along their periphery. The temporary insert includes a through hole communicating outside with a free space between the outer surface of the temporary insert and the inner surface of the cup. In the through hole can be engaged the threaded end of an impactor. for manipulating the cup when it is being set. A syringe can be engaged, enabling a liquid under pressure to be injected into the free space, thus separating the temporary insert from the cup without any risk of damaging the inner surface of the cup. Thus, the cup can be securely manipulated when it is being set without any risk of damaging the inner surface of the cup.

대표청구항 ▼

1. Method of assembling an adapter and a cup of a set of acetabular cup prosthesis setting means, wherein the method comprises the steps of: a) providing a cup delimited by a convex proximal face, a concave distal face defining an interior surface of the cup, and a peripheral lip, said cup comprisin

1. Method of assembling an adapter and a cup of a set of acetabular cup prosthesis setting means, wherein the method comprises the steps of: a) providing a cup delimited by a convex proximal face, a concave distal face defining an interior surface of the cup, and a peripheral lip, said cup comprising a cylindrical or slightly conical annular retaining surface extending the concave distal face toward the peripheral lip,b) providing an adapter for fastening the cup to an impactor, the adapter including: fixing means for detachably fixing the adapter to the impactor,fixing means on the cup, leaving a free space between the adapter and the cup once the adapter is fixed to the cup,an access hole through which the free space between the adapter and the cup communicates with the outside,a cylindrical or slightly conical annular engagement surface the same shape as the annular retaining surface of the cup, said engagement surface having a diameter, at room temperature, which is slightly greater than a diameter of the retaining surface of the cup,c) cooling the adapter to reduce its dimensions,d) positioning the adapter in the cup,e) allowing the adapter, once in place in the cup, to return to room temperature to expand it so that the annular engagement surface of the adapter is forcibly immobilized in fluid-tight manner in the annular retaining surface of the cup. 2. Assembly method according to claim 1, wherein the method comprises a step of sterilizing the adapter and the cup by means of gamma rays once they have been fastened together. 3. Assembly method according to claim 1, wherein: the adapter comprises abutment means adapted to bear axially on the peripheral lip of the cup to limit the penetration of the adapter into the cup,during step d), the adapter is introduced into the cup until abutment means bear axially on the peripheral lip of the cup. 4. Assembly method according to claim 1, wherein the concave distal face of the cup is substantially hemispherical, extended by a short cylindrical or slightly conical annular retaining surface. 5. Assembly method according to claim 1, wherein the annular retaining surface of the cup comprises at least one annular groove and the annular engagement surface of the adapter comprises at least one corresponding annular rib adapted to be engaged in the annular groove. 6. Assembly method according to claim 1, wherein the means for fixing the adapter to the impactor comprise a threaded fixing hole in the adapter for screwing in a corresponding threaded portion of the impactor. 7. Assembly method according to claim 1, wherein the access hole to the free space between the cup and the adapter is conformed and dimensioned for the fluid-tight engagement therein of the end of a syringe. 8. Assembly method according to claim 1, wherein the access hole of the adapter is threaded to fulfill the function of an adapter fixing hole by enabling a corresponding threaded portion of the impactor to be screwed into the adapter. 9. Assembly method according to claim 1, wherein the adapter is a temporary trial insert comprising, on its distal face, a hemispherical cavity dimensioned to enable the engagement of the head of a femoral prosthesis. 10. Assembly method according to claim 9, wherein the access hole of the adapter is located in the bottom of the hemispherical cavity. 11. Assembly method according to claim 1, wherein the adapter is made of polyethylene. 12. Assembly method according to claim 1, wherein, after step e), the adapter and cup are packaged in a sterile state in a sealed protective envelope.