and a tourniquet tightens around the patient’s arm, above the elbow, to make the blood draw easier. The Aletta then uses an infrared light to locate the veins. The device sprays the patient’s ...

Here’s how it works: The patient sits in a chair by the five-foot-tall (about 1.5m) device, which is called Aletta, and ...

and a tourniquet tightens around the patient’s arm, above the elbow, to make the blood draw easier. The Aletta then uses an infrared light to locate the veins. The device sprays the patient’s ...