| http://www.w3.org/ns/prov#value | - One embodiment comprises the acts of operably connecting a plurality of flexible struts to an outer surface of a catheter, the catheter containing a rotatable member; operably connecting the plurality of flexible struts to the rotatable member; and operably connecting a membrane to the plurality of flexible struts.Another aspect of the present invention is a method of forming flexible struts for u
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