Appeal No. 1998-2637 Page 13
Application No. 08/470,142
(6)
Claim 82 has been rejected on the basis of Horzewski and Grayzel. It adds to the
method of claim 81 the step of piercing the blood vessel with the leading end portion of the
sheath. Horzewski and Grayzel have been explained above with regard to other rejections.
It is our view that the shortcomings of Horzewski with regard to the method set forth in
independent claim 81, from which claim 82 depends, are not alleviated by consideration of
Grayzel.
The rejection of claim 82 is not sustained.
(7)
The examiner has rejected independent claim 127 and dependent claim 128 as
being unpatentable over Everett. Claim 127 recites a method of establishing
communication with the interior of a vessel with a cannula having an oval cross sectional
configuration in a plane extending perpendicular to the longitudinal axis of the cannula,
which comprises the steps of aligning the cannula with the blood vessel with the major axis
of the oval cross section extending along a longitudinal axis of the vessel, piercing a side
wall of the vessel with a leading end of the cannula while in said alignment to form an
elongated opening in the side wall of the vessel, and moving the cannula through the
elongated opening with the major axis of the oval cross section of the cannula aligned with
a longitudinal axis of the opening in the side wall of the vessel.
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