There have been some interesting developments in minimally invasive surgery techniques in recent years. Natural orifice transluminal endoscopic surgery (NOTES) has been receiving quite a bit of press too. But needles are still the primary means for vascular access and drug delivery. Maybe this will change soon:
A Japanese engineer believes he has invented a practical single use needle-free drug injection device that comes preloaded with medicine, and avoids the process of drawing a drug from an ampule into a separate injection device for delivery.Â