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Photographs of (a) a 22G Franseen needle (AcquireTM) and (b) a 22G Fork-tip needle (Shark CoreTM). (a) Franseen needles are made of cobalt–chromium and have a crown-shaped tip with three symmetric prongs. (b) Fork-tip needles are made of stainless steel and contain a nitinol stylet. The device has a multifaceted opposite bevel tip incorporating two sharp prongs of different lengths.
