| http://www.w3.org/ns/prov#value | - a) a handle for turning by a user; b) a head coaxially attached to said handle; said head including a channel for receiving said closure and a pair of wings on opposite sides of said channel; each of said wings having a radially outward surface that includes a non-uniform radius cam; each of said wings operably being biasable against the arms of the implant holding said closure so as to spread the
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