Extract to table

The intrinsic record — comprising the claim language itself, the specification (including the written description and drawings), and the prosecution history — is the primary source for claim construction and must be considered in every case

The seal must incorporate a structural feature — such as a cam ring, a detent, a snap-fit tab, or the like — that affirmatively locks the seal into a fixed position

This construction limits the term in two important respects: (i) the retraction must be automatic (i

occurring upon release of the actuating force, without the need for a separate user action to initiate retraction), and (ii) the retraction must be driven by a stored-energy element (i

The key requirement of this construction is that the proximal end of the cannula must include a defined mechanical interface — a specifically configured surface that mates with the seal assembly through a defined coupling mechanism

" The addition of "interface" must carry independent meaning, and that meaning, informed by the specification, is a defined mechanical coupling structure