A method and apparatus for use in reducing the volatilization of the monomer component of bone cement is used after a prosthesis is implanted and throughout the polymerization of bone cement. The apparatus includes a generally annular inflatable sealing member having a centrally located opening therein...http://www.google.co.uk/patents/US5147366?utm_source=gb-gplus-sharePatent US5147366 - Pressurization of bone cement surrounding an endoprosthesis
