A butterfly needle is a popular choice for drawing blood, getting IV fluids, or receiving certain medications. We’ll tell you how this needle works and why it’s preferred for some people ...

If a medical intravenous (IV) needle could soften upon insertion into the body, to match the softness of biological tissue, patients would experience less pain during drug injection, be more ...

Researchers have developed an intravenous needle that softens and flexes when in the body, reducing the risk of damage to the blood vessel as patients receive medication.

IV catheters can be placed in a hand, arm or leg. During the placement of an IV, a needle is inserted through the skin and into an accessible blood vessel.

This video shows the use of ultrasound guidance to place catheters in peripheral veins in the upper extremities. This technique can also be used to cannulate any peripheral vein.