HARMONIC curved blades were developed (with feedback from surgeons) for better visibility of tissue at the tip.1,2
1. Ethicon Inc, 00-03659, Project Mercury: UltraCision Harmonic Scalpel Sharp Curved Blade 10cm/Product Code HF105 (PC0091 rev C), Sep 2000, Data on File.
2. Ethicon Inc, PC0038F, Product Criteria: UltraCision Curved Blades: HC105, HC145, HC325, Mar 2001, Data on File. (C2282)