Appeal No. 2000-1120
Application 09/095,205
20. The apparatus of claim 19 further comprising:
means for establishing air tight seals between said lid
assembly and said mixing member and between said lid assembly and
said syringe body.
23. A method of mixing bone cement comprising the steps of:
placing the constituents of the bone cement in the cylindrical
mixing chamber of a syringe body;
mounting a rotatable mixing device on the syringe body, the
step of mounting including immersing a mixing blade of the mixing
device in the constituents placed within the mixing chamber;
imparting linear motion to a drive handle located to the
exterior of the syringe body, said linear motion being parallel
to and in line with the axis of the cylindrical chamber; and
translating said linear motion of the drive handle to
rotational motion of the mixing element to cause the mixing of
the bone cement constituents in the syringe.
The references relied upon by the examiner are:
Gunnarsson 4,758,096 July 19, 1988
Chan 4,973,168 Nov. 27, 1990
Lidgren (EPA) 0 178 658 Apr. 23, 1986
Blasnik (GB) 1 430 064 Mar. 31, 1976
Claims 14-21 and 23 stand rejected under 35 U.S.C. § 103 as
being unpatentable over Chan in view of Blasnik.
Claims 14-15, 17-19 and 21-23 stand rejected under 35 U.S.C.
§ 103 as being unpatentable over Gunnarsson in view of Blasnik.
Claims 14-23 stand rejected under 35 U.S.C. § 103 as being
unpatentable over Lidgren in view of Blasnik.
On page 9 of the brief, appellants group the claims as
follows:
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