Vacuum therapy, orVT,is anon-invasive, drug-freetreatment for erectile dysfunction,orED, whichuses negative pressure to allow increased blood flow to the male organ by engorging the penile blood vessels, according to a study published in 2010 in the International Journal of Impotence Research. Based on how it isapplied, VT can be categorized into two types: vacuum constriction device, or VCD and vacuum erectile device, or VED.
VCD involves the use of an external constriction band that is attached to the penis to retain an erection sufficient for sexual penetration. VED, meanwhile, does not involve the use of constriction rings. This type of VT primarilyaims to concentrate inflow of oxygenated blood in theerectile tissues of the male genitalia.