By: Ligamed  11-11-2011
Keywords: Polyurethane Foam, Wound Healing

Ligasano White

Ligasano White is a therapeutically effective polyurethane foam material with a wide range of applications for wound care and prevention.

The therapeutic use is based essentially on three underlying physical principles:

  • Mechanical stimulus
  • Rapidly falling pressure tension
  • Controlled absorption effect

Mechanical stimulus

Ligasano white stimulates local blood circulation in the wound when placed directly onto/into wound surface or when there is skin contact, thereby improving the supply of nutrients and oxygen in the wound area (activation of the wound) whilst also acting as a pressure preventative aid on skin which is still intact. Stimulates normal bodily functions at local level, especially in the case of inactive patients or where these functions are reduced. Even without conscious movements, the surface structure of Ligasano white promotes a mechanical stimulus. Due to contact with the skin the blood flow is stimulated, secretions increase, germs, slough and dry necrotic material is removed thereby achieving a self-action cleansing of the wound that may assist manually, if required. Micro and macro motions of the patient cause an intermittent negative pressure and this promotes a mechanical stimulus on wound and skin.

Rapidly falling pressure tension

Low-pressure adaption to contours, and even, minimized pressure on wound and body.

Controlled absorption effect

Ligasano white absorbs exudate without dehydrating a wound bed. Creates a moist and warm wound environment, is antiseptic, and cleans the wound with no sticking to the wound. Averts skin maceration and is skin friendly. It has a high absorption volume without change of dimensions and no hardening. Ligasano white has a high absorptive effect due to its honeycomb inner structure. Excess wound secretions from the body are absorbed, thus preventing maceration of tissue surrounding the wound. The risk of bacterial flora is decreased.

Ligasano white significantly reduces the risk of wound creation as a result of poor blood circulation. Wound healing disorders due to poor blood circulation are reduced or removed and contaminated or local infected wounds are cleaned, largely without the need for any further action. It stimulates granulation and epithelisation and the desired results usually occur surprisingly quickly and clearly. Ligasano white is not an implant and therefore must not remain permanently in wounds. After a maximum of three days the Ligasano white padding on the wound surface and/or padding inserted into the wound must be changed.

Ligasano white is used for direct wound healing - it must make direct contact with the wound bed (on animals and humans) in order for it to work effectively. It must be packed into a wound cavity, layer upon layer, plus into/under all undermined (skin flaps) areas. A further large piece must then be cut to size to cover the entire wound area. A bandage is placed over and around the Ligasano to hold it securely in place.

Ligasano Green

Ligasano green is an elastic, expanded polyurethane, which is pervious to air and liquids (e.g. water) - imagine a three dimensional sieve. It has a course texture and rough surface.

The special properties of Ligasano green allow parts of the body to breathe, where dampness or suppuration otherwise accumulate as a result of contact with other objects (e.g. flat bed surfaces, seats, back-rests). Due to gravity, large amounts of fluid, e.g. sweat, can run down and are allowed to evaporate unhindered. Thus skin maceration can be prevented with this product. It prevents the accumulation of heat and moisture because it is almost completely air-permeable.

Ligasano Green Grid is used as a primary dressing for active wound drainage with hospital wall suction and for secondary applications for prevention of decubitus ulcers (pressure sores) on humans, whilst for primary use on animals for the first 24 hours in order to aggressively stimulate circulation.

Keywords: Polyurethane Foam, Wound Healing