An IV catheter device is disclosed comprising a housing defining a chamber, a tubular member extending distally from the housing and defining a lumen, the lumen being in fluid communication with the chamber； a seal member (300) disposed within the chamber, the seal member having a sealing portion and a septum (316) configured to removably receive an introducer needle, the sealing portion of the seal member being movable into sealing engagement with a portion of the housing and a compression member (475) coupled to the seal member about the septum, the compression member having a substantially cylindrical shape and having an internal surface (479f) including at least one friction element being configured to provide a retention force to retain the compression member about the septum.
