Endoscopic ultrasound-guided fine needle aspiration biopsy (EUS-FNA) is currently performed on a routine basis at many endoscopic centers and it is evident that this procedure has a major impact ...

A stiff steel needle for fine needle aspiration biopsy is the 'core' of this biopsy instrument. The needle is manipulated by a handle piston in the biopsy handle (Fig. 1). The handle piston can be ...