DIY Device: Improved Needle Cover for Injection Depth Control
Device Principle Schematic Improved device for intralesional injection Method: First, measure and mark the depth the needle needs to enter the lesion, then use a #22 scalpel to cut the needle cover according to the mark. This device can also be applied for buccal mucosa injections, nerve blocks, small area superficial anesthesia, and PRP injections. … Read more
