Appeal No. 2003-1337
Serial No. 08/480,411
THE INVENTION
The appellants’ claimed invention is directed toward a
microtube which, the appellants state, is useful in a variety of
applications including medical catheters (specification, page 1).
Claims 1, 10, 27 and 33 are illustrative:
1. A microtube having a proximal end and a distal end
comprising:
an inner cured resin layer;
a braid layer over the inner cured resin layer;
a medial cured resin layer over the braid layer wherein said
medial layer extends from the proximal end of the microtube
to a point intermediate the proximal end and the distal end
at the microtube, encapsulating the braid and comprising a
braid matrix layer between the proximal end and said
intermediate point;
a third layer over and encasing the medial layer between the
proximal end and the intermediate point, said third layer
also encapsulating the braid layer and comprising the
remainder of the braid matrix layer.
10. A microtube having a tube wall with an outer surface
and an inner lumen connecting a proximal end and a distal end,
said tube wall comprising at least one cured resin layer and
wherein the cross section of the inner lumen at the proximate end
is of relatively greater area than the cross section of the inner
lumen at the distal end; and wherein the thickness of the tube
wall is relatively greater at the proximate end than at the
distal end.
27. A microtube having a proximate end and a distal end and
comprising:
an inner layer extending from the proximate end of the
microtube to a point intermediate the proximate end and the
distal end of the microtube; and
2
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