Patent ID: 11865006
Assignee: HERAEUS MEDICAL GMBH
Field: Medical technology (Instruments)
Classification: CPC A  B | IPC A  B

Claim 16:
17. A method for producing a spacer for temporarily replacing a joint or part of a joint, or a hip joint or a shoulder joint, comprising an articulating surface of the joint, wherein the method is carried out with the device according to claim 1 or with a set for producing different spacers by curing bone cement paste, wherein the spacers are provided in the medical field for temporarily replacing a joint or part of a joint comprising an articulating surface of a head of the joint, the set having at least one device according to claim 1, wherein the set has at least two head molds with different diameters of the spherical surface-shaped inner surfaces and/or at least two stem molds with hollow spaces of different lengths in the distal direction or different internal diameters of the hollow spaces, the method having the following steps:
A) introducing a bone cement paste into the inner space of the stem mold and introducing a bone cement paste into the hollow space of the head mold;
B) pushing the head part of the metal core into the hollow space, filled with bone cement paste, of the head mold, so displacing the bone cement paste contained therein, until the distal wall of the head mold is resting against the proximal surface of the flange of the metal core, and pushing the stem part of the metal core into the inner space, filled with bone cement paste, of the stem mold, so displacing the bone cement paste contained therein, until the proximal wall of the stem mold is resting against the distal surface of the flange of the metal core;
C) curing the bone cement paste in the head mold and the stem mold; and
D) removing the resultant shaped and cured spacer from the head mold and the stem mold.