Abstract: This invention provides a vascular stabilizer in which a base plate that has a major medial longitudinal aperture or slot is adapted to be positioned so that the edges of the slot embrace a vein. The slot is defined by an arched connector or hood portion to rigify the slot and to protect a needle-type catheter in inserted position and means are provided to readily secure the base plate member to the patient as well as exerting mild pressure on either side of the vein to be infused.