Sklar's Adson Aneurysm Needle is commonly used in intracranial procedures for ligation of arteries and treatment of an aneurysm. This product has a short, right angled tip with an eye, through which the ligatures are passed. The overall length is 8-3/4 inches. Aneurysm needles are also used for passing ligatures around deep wounds or tubular structures in OB/GYN procedures.