Many techniques have also been described including the use of a vaginal speculum with forceps advancement in the presence of severe anasarca, the use of Peel-away® sheath placed over a resectoscope or cystoscope allowing for catheter access through the sheath once the scope is removed from the urethral lumen, and hydrodistension of the urethra and lubrication of the hydrophilic Foley by attaching a 60 mL catheter tip be the standard of care.
Source: wiktionary