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The key difference between
the no-scalpel vasectomy and the conventional vasectomy procedures
relates to how the vas tube is accessed.
Freezing
Virtually never, are oral sedative medications required. There are two common techniques:
Needle Vasectomy Procedure
The standard method is to inject a small amount of freezing solution into the
scrotal skin, then inject a little more freezing solution alongside each sperm
tube. This will cause a momentary dull ache, and after that you should not feel
anything.The No Needle Vasectomy ProcedureThe "No Needle Anesthesia" (nna) is a modern technique, accomplished by applying a pressurized jet spray to numb the area through a pen-like device, eliminating the need for a needle. The jet injector delivers a hypospray of Xylocaine under pressure instantly over each vas deferens.
This method has been use since about 2002. It has three main advantages for the patient:
1. It is considered virtually painless.
2. Requires about 1/50th less anesthetic
3. Length of time for anesthetic onset is reduced to 10-20 seconds from 60-90 seconds.
The no-needle vasectomy (NNV) technique serves to reduce fear and anxiety prior to and during a vasectomy
procedure, making it easier and faster for the surgeon.
Accessing the Vas Tube
The vas tube on one side is grasped under the scrotal skin.
Then a 1cm incision is made through the scrotal skin and through the sheath or covering of the vas until the whole vas is exposed.
The vas is then grasped with a hand clamp, and the arteries, veins and nerves are dissected free at the vas tube. The vas tube is then elevated out of the scrotum and blocked one of the methods described
below (same for in no-scalpel procedure) i.e., by tying, cauterizing or affixing metal clips the ends of the tubes. The wound is then often sutured closed. The same process is then repeated on the other side.
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