Abstract: This invention pertains generally to a device for retaining a medically relevant tube into a proper registration for application of medical treatment to a patient, and more particularly to a flexible holder for positioning of an endotracheal tube wherein said holder has integrated therein circumferential guard projections for maintaining optimal flow characteristics of the restrained endotracheal tube. Circumferential guard projections extend both outwardly and inwardly from said endotracheal tube holder and are integral to and monolithically formed with the endotracheal tube holder. The endotracheal tube holder is adaptable to receiving tubes of varying diameters and includes a capture means for allowing insertion and removal of an endotracheal tube through a transverse access port in a side aspect of the holder. The monolithic nature of the endotracheal tube holder design is further enhanced through incorporation of access portals about the holder for allowing routine patient maintenance.