A Vacuum constriction device (VCD) is an external pump that a man with Erectile dysfunction (ED) can use to get and maintain an erection. The pump helps the penis to become erect and a band attached to the pump helps to maintain the erection. Best Vacuum Device for Erectile Dysfunction - It is used to get a Penile erection for sex by males with erectile dysfunction. The tubes are hollow tubes with a pump that removes the air from them. The vacuum relaxes the blood vessels of the penis. The dilation and relaxation draws blood inside the penis for an erection.some medicine is helpful in ED Like as :- Generic Viagra 50mg Tablets