Extract to table

At the same time, the Federal Circuit has cautioned that courts must be careful not to read limitations from the specification into the claims

In bladed trocar designs, the safety of the obturator blade is a critical design consideration, as the blade must penetrate the abdominal wall but must not injure internal organs or structures upon entering the peritoneal cavity

The seal must accommodate instruments of varying diameters while preventing the escape of insufflation gas (typically carbon dioxide)

The insufflation valve must manage gas flow effectively while allowing instruments to be inserted, removed, or exchanged without significant loss of intra-abdominal pressure

First, independent Claim 1 must include a "locking interface" of some kind — otherwise, Claim 3's further limitation of the "locking interface" to a "snap-fit detent" would be nonsensical

" This is contrary to the plain meaning of the term and violates the well-established principle that every word of a claim must be given meaning