A vacuum
device is a tube made of plastic that fits around the penis to help a man
achieve an erection. The man coats the base of his penis with lubricant and
inserts it into the tube. The air is pumped out of the tube, which creates a
vacuum. A tight band is placed around the base of the penis to maintain the
erection, and the tube is removed.
The vacuum helps blood flow
into the penis, making the penis firm in about 5 minutes.
