A device is provided for preventing buckling of a flexible elongate member during insertion of the flexible elongate member. The device includes a support frame comprising a first end, a second end, and multiple pairs of support members. The support frame is configured to reversibly move from a collapsed configuration to an expanded configuration when the first and second ends are moved away from each other. The device also includes multiple open channels coupled to the multiple pairs of support members of the support frame. The multiple open channels are configured to allow the flexible elongate member to be top loaded into the multiple open channels. Also, the multiple open channels are maintained in an axial alignment as the support frame is moved between the expanded and collapsed configurations.
