Patent ID: 6586009
Filing Date: 2003-07-01
Classification: A61K,A61L

Abstract:
Method for manufacturing a powder component for a cement for medical use,said cement including a liquid component containing a polymerizable substance and a powder component containing a plastic substance selected from the group consisting of acrylic polymer particles, polymethylmethacrylate and copolymers containing polymethylmethacrylate, and an X-ray contrast medium, and wherein the liquid component and the powder component are adapted to be mixed for providing a setting mass which is set to form the cement, said method comprising the steps of: mixing a water soluble, non-ionic X-ray contrast medium with the plastic substance selected from the group consisting of acrylic polymer particles, polymethylmethacrylate and copolymers containing polymethylmethacrylate, whereby particles of said X-ray contrast medium released from the cement after cementation are dissolved and do not thereby contribute to the wear of articulating or bearing surfaces adjacent the point of cementation, and sterilizing by radiating the powder component containing said X-ray contrast medium at a negative pressure for maintaining the strength of the powder component after the sterilization.