Abstract: A disposable venoclysis adaptor device for supporting a venotube at a person's limb and including at least one flexible fastening strap to be secured at the person's limb, two spacing cushions securable to the strap, an adaptor pillow securable to the strap between the two cushions, an adaptor flap provided between the cushions and cooperating with the adapter pillow for fixedly retaining a venotube therebetween, and a tube flax provided on the fastening strap for securing an extension of the venotube for preventing displacement of the venotube upon person's limb movement.