| http://www.w3.org/ns/prov#value | - The catheter sheath according to claim 3, wherein expandable distal end is a tube of at least two layers including an inner layer and an outer layer, the inner layer including at least two slits, the at least two slits being generally longitudinally oriented, the at least two slits of a zig-zag cut that forms teeth, and the outer layer does not have slits. 5.
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