| http://www.w3.org/ns/prov#value | - the ring 102 down the tip until the ring 102 abuts against a step, shoulder, or other stopping mechanism, as will be discussed in further detail below with respect to FIGS. 20A and 20B. The ring 102 includes an inner surface 102 a that, in certain embodiments, is tapered to inter-fit with the tip of a delivery device.
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