A retainer includes a first arcuate wall and a second arcuate wall that together define a channel designed to receive a medical article. The retainer has an open configuration wherein a first end of the first arcuate wall is spaced away from a first end of the second arcuate wall, and a closed configuration wherein the first end of the first arcuate wall is adjacent the first end of the second arcuate wall. A second end of the first arcuate wall opposite the first end of the arcuate wall may be spaced away from the base in the open configuration and pressed against the base in the closed configuration. The retainer also may include a first support and a second support fixed to the base, and a first and second flexible coupling connecting the first and second supports to the first and second arcuate walls.
