Appeal No. 1998-2327
Application No. 08/467,619
stabilizer, wherein the liquid alkyl methacrylate is present
in an amount sufficient to provide the first liquid component
as a liquid mixture and wherein the first chamber is
substantially free of air. The second chamber contains a
second liquid component comprising a liquid alkyl
methacrylate, an activator and a stabilizer, wherein the
liquid alkyl methacrylate is present in the second liquid
component in an amount which is sufficient to provide the
second liquid component as a liquid mixture and wherein the
second chamber is substantially free of air. This appealed
subject matter is adequately illustrated by independent claim
1 which reads as follows:
1. A bone cement preparation system for providing a
liquid bone cement having a first monomer/polymer ratio,
said system comprising a container having a first end and
a second end, said container having a first chamber and a
second chamber located between said first and second
ends, each of said first and second chambers having an
outlet in said second end of said container, said
container being free of internal communication between
said first chamber and said second chamber;
said first chamber containing a first liquid
component for said liquid bone cement, said first liquid
component comprising a liquid alkyl methacrylate,
poly(alkyl methacrylate), a polymerization initiator, and
a stabilizer for preventing spontaneous polymerization of
the liquid
alkyl methacrylate in said first liquid component, the
2
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