Appeal No. 97-0684
Application 08/171,343
. . . The present invention . . . has the purpose
of offering a vessel-expanding catheter which is able
to eliminate residual air bubbles in the expanding
member easily . . . [and] has the further purpose of
offering a vessel-expanding catheter which prevents
injury to the interior wall of blood vessels, thus
reducing complications such as abrasion of the blood
vessel interior walls . . .
The aforesaid purposes are achieved by means of a
vessel-expanding catheter characterized as being
provided with a triple-tube type catheter tube composed
of an inner tube that forms a No. 1 flowpath open at
one end, a center tube that encloses said inner tube
and forms a No. 2 flowpath with said inner tube, and an
outer tube that encloses said inner tube and forms a
No. 3 flowpath with said inner tube . . .
Thus, Sugiyama clearly teaches away from the modification
thereof proposed by the examiner in his alternative theory of
obviousness.
The decision of the examiner is reversed.
REVERSED
NEAL E. ABRAMS )
Administrative Patent Judge )
)
)
)
LAWRENCE J. STAAB ) BOARD OF PATENT
Administrative Patent Judge ) APPEALS AND
) INTERFERENCES
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)
JOHN P. McQUADE )
Administrative Patent Judge )
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