QDC 303 Air Mattress Bubble

Air Mattresses Overlay for the treatment of bedsores, more properly known as pressure ulcers or decubitus ulcers.

  • Category: Air Mattresses


QDC 303 is designed for the treatment and prevention of pressure sore stage 1 in short-term and domiciliary therapies.  The mattress is PVC and is composed of 130 7cm-high bubble cells. It is fixed to the bed by extra flaps on both the top and bottom side. It is easy to install, maintain and use. The pump can be adjusted for comfort. The pump can be hung on the end of the bed by means of two hooks.


Pressure injuries are accepted to be caused by three different tissue forces:

Prolonged pressure 

In most cases, this pressure is caused by the force of bone against a surface, as when a patient remains in a seated or supine position for an extended period. When this pressure exceeds the tissue capillary pressure, it deprives the surrounding tissues of oxygen and can lead to tissue necrosis if left untreated.


This force is typically a result of the skin of a patient staying in one place as the deep fascia and skeletal muscle slide down, which can pinch off blood vessels and in turn lead to ischemia and tissue necrosis.


Friction is the opposing force to the shear force. This can cause microscopic and macroscopic tissue trauma, specifically when the patient is being moved across the support surface.

In addition, moisture from incontinence, perspiration or exudate can increase the coefficient of friction between the skin and the surface, making it more susceptible to friction damage. Increased moisture also can weaken the bonds between epithelial cells, resulting in skin maceration, which also makes the skin more susceptible to pressure, shear, and friction damage.

Risk Factors 

  • Immobility or limited mobility
  • Spinal cord injury
  • Diseases that affect blood flow such as diabetes or atherosclerosis
  • Fragile skin
  • Urinary or fecal incontinence
  • Poor nutrition or dehydration
  • Decreased mental awareness
  • Obesity
  • Neuropathy
  • Fever