Hip Endoprosthesis Implantation Accessory with Manipulation Cup

The patent creates a mechanical copy of the prosthesis cup called the 'manipulation cup' that can be positioned and oriented within the acetabulum. This manipulation cup serves as a simplified physical replica that allows the surgeon to test positions and orientations without committing to the actual implant, thereby achieving precise positioning through mechanical means rather than complex computerized navigation systems

The manipulation cup acts as an intermediary tool between the surgeon's planning and the actual prosthesis implantation. It allows for intermediate positioning, testing, and verification of the correct orientation and position before the final implant is placed, eliminating the need for expensive real-time navigation systems

The manipulation cup is designed with a 'shoulder' feature that extends radially outward beyond the spherical part. This shoulder creates a mechanical stop that prevents the cup from being positioned too deeply or at incorrect angles that would cause collision with the femoral neck. By builtting this protective feature in advance, the design eliminates the need for complex real-time monitoring during positioning

The manipulation cup's own geometry, specifically the shoulder extending from the spherical part, provides the collision avoidance function. The cup's structure itself serves as the protective mechanism, where the shoulder naturally limits the range of motion and positioning depth, making the system self-regulating without requiring external control mechanisms