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Brown: Atlas of Regional Anesthesia, 3rd ed.,
Copyright © 2006 Saunders, An Imprint of Elsevier
Side-port device used during catheter placement for infraclavicular block. A, Localization of the correct needle site via nerve stimulator guidance. B, Injection of local anesthetic to distend the perineural space prior to catheter insertion. C, Insertion of a catheter without additional guidance.