A No-Scalpel Pro-Vas Occlusion procedure is identical to a no-scalpel vasectomy up to the point where a small loop of vas deferens is exposed outside your scrotum. At this point, instead ligating, excising (removing) a section of your vas and cauterizing the ends, your surgeon will simply apply a small titanium spring clip on your vas. It’s a bit like analogous to putting a clothes-pin on a drinking-straw to occlude it. Once the Pro-Vas clip is applied to your vas deferens, the vas is returned to your scrotum and the same process is repeated on the other side.