IMPLANTABLE SELF-CLOSING CUFF

A cuff is described for a target anatomic feature within a body, along with a system for utilizing the cuff. The cuff includes a band defining a circumferential opening extending along a length of the band; and a pair of engagement surfaces defined by or affixed to the cuff, the engagement surfaces structured for application of a spreading force to be distributed continuously along a portion of the circumferential opening, thereby increasing the circumferential opening and expanding the cuff for a closed configuration to an open configuration sized for placement of the cuff. The cuff is structured to remain in the closed configuration in the absence of the spreading force and automatically return to the closed configuration after removal of the spreading force.