Appeal No. 1999-2329
Application 08/642,278
fluid administration sets” (col. 14, lines 22 and 23), and
that “when appropriate, the multilayered tubing according to
the present invention can be uniaxially, biaxially or
multiaxially oriented to further enhance its physical
characteristics” (col. 12, lines 33 to 36). The orientation
process is disclosed at col. 12, line 66 to col. 13, line 16,
it being stated that orientation “preferably but not
necessarily provides additional tensile strength to the
tubing” (col.12 , line 67, to col. 13, line 1). Also,
orientation can be used to form very small diameter tubes
(col. 13, lines 13 to 16), and smaller size tubing is used in
IV sets (col. 10, lines 44 and 45).
In view of these teachings of Fanselow, we consider that
it would have been obvious to one of ordinary skill in the art
to use the oriented tubing of Fanselow in the IV set of
Fairchild. As noted above, Fanselow teaches the use of the
tubing disclosed therein in IV sets, and contains no
suggestion that this teaching does not include oriented
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