Appeal No. 1997-2569
Application No. 08/469,578
air, causes agitation of the liquids and effects a mixing
thereof. Gibbs discloses several parameters such as tape
speed and air flow which are said to achieve adequate mixing.
See, e.g., col. 3, lines 46-57 and col. 4, lines 15-29.
According to Gibbs, this method prevents cross-contamination
between samples. See col. 1, lines 5-54; col. 2, lines 5-28.
Lee discloses a method for analyzing whole blood samples
using a gel medium incorporated into a rigid support or
applied as a coating on a tape. The whole blood sample is
dropped onto the gel medium at an application station.
Thereafter (col. 6, lines 11-15):
A vibratory agitator 71 is disposed adjacent the
tape 60 at the application station 62 to mix the
sample and prevent sedimentation of red cells in the
whole blood sample, while the plasma solutes are
diffusing into the gels.
Woodbridge discloses an analytical test strip comprising
a pocket for receiving small sample fluids. Vibration,
including sonic and ultrasonic stimulation, may be used to mix
fluids contained in the pocket. See col. 11, lines 3-9.
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