| http://www.w3.org/ns/prov#value | - Embodiments of the cannula assembly can include a single instrument sealing arrangement, or two or more sealing arrangements (that can be in contact with each other, or arranged separately in or on the housing). [0058] In one example, using the embodiments of the cannula assembly 500 shown in FIG. 2 for reference, a surgical instrument such as a trocar is passed into the housing through a first se
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