A clip is described for the purposes of aiding researchers with tail vessel injections in laboratory mice. The clip, consisting of a tourniquet with an attached ring and platform, allows the researchers to place the tourniquet over the tail of the mouse, either by hand or using a placement tool, and subsequently insert the specified needle through the ring, where it traverses at the appropriate angle to successfully puncture and enter the vessel lumen. The disposable nature of the clip allows researchers to maintain financial goals and decrease sterility issues. Additional features could be added to the clip for either practical or personal reasons. The clip is where cost-effectiveness and efficacy combine to provide the user with a satisfactory aid in the field of vessel injection systems.
