No-Scalpel Vasectomy: An Illustrated Guide for ... - EngenderHealth

FIGURE 9.Anesthesia technique:Deep infiltration of the left vasLeft handCreatingthe Vasal Block:Left VasReintroduce the needle through the same holepreviously used; a second skin wheal is not needed.Advance the needle parallel to the left vas into theexternal spermatic fascia (Fig. 9). As with the right vas,inject 2 to 5 cc of lidocaine within the externalspermatic fascial sheath around the left vas deferens.EngenderHealth Anesthesia 23