| http://www.w3.org/ns/prov#value | - Referring now to FIGS. 3A, 3B, 4A, and 4B, expansible member 14 may be formed from a variety of medical grade materials, including stainless steel, superelastic material such as NITINOL???, or polymer materials such as nylon, polyurethane, polyimide, PEEK???, PEBAX???, and the like.
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