Catheter anchoring system

A catheterization system comprising:

• a catheter including an adaptor having a body with at least one inwardly extending member;
• and
• a retainer including a channel that extends about a longitudinal axis, the channel generally having a truncated cross-sectional shape with an opening that lies generally parallel to the longitudinal axis, the channel including a first portion, a second portion, and a third portion, the second portion being disposed between the first and third portions and including at least two projections, the projections extending toward the longitudinal axis in a lateral direction and being configured to engage the inwardly extending member of the adaptor in a manner inhibiting longitudinal motion of the adaptor through the retainer, and the channel extending about the longitudinal axis at least to an extent where the channel surrounds at least half of the adaptor body when the adaptor body is disposed within the channel, wherein a cross section of at least a portion of the channel tapers along its length.

A securement system for an elongated medical article comprising an adaptor including a body defined about a longitudinal axis, and a retainer including a first side and a second side that together define a space of sufficient size to receive a portion of the adaptor, the space including a first portion, a second portion, and a third portion, the second portion being disposed between the first and third portions and including at least two projections, the projections extending toward the longitudinal axis in a lateral direction, the retainer receiving at least a portion of the adaptor within the space, the at least two projections being configured so as to cooperate with the adaptor in a manner substantially inhibiting axial motion of the adaptor through the retainer, and wherein a cross section of at least a portion of the space tapers along its length.