You may know the dangers of getting an epidural injection if you've suffered the side effects. A needle that goes in too far puts you at risk for spinal cord damage, and a needle that doesn't go in far enough won't deliver the medications you need accurately. If you've been hurt this way, a medical malpractice lawsuit might be one solution, but another is to work on prevention.
Smart needles are a new invention that can make injections safer for anyone using them. The needle, which is embedded with an optical sensor, makes medical procedures safer.