Abstract: An apparatus having an adjustable ambient air-oxygen blender that adjustably mixes ambient air with an oxygen supply, especially where a size, diameter or flow rate of an orifice is mechanically adjustable so as to control a quantitative mixing function of the blender.

Abstract: A vacuum therapy apparatus includes a vacuum chamber configured to receive an organ to be treated, a vacuum pump coupled to the vacuum chamber and configured to draw air from the vacuum chamber so that blood is drawn into the organ, a controller configured to cause the vacuum pump to undergo an operating cycle in which the organ is changed from a flaccid to an erectile state and then back to an flaccid state, causing tissues of the organ to expand and contract, and a memory provided on a detachable part of the apparatus and configured to store information regarding at least one operating cycle under which the apparatus has operated.