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Negative pressure wound therapy device. Negative-pressure wound therapy (NPWT), also known as a vacuum assisted closure (VAC), is a therapeutic technique using a suction pump, tubing, and a dressing to remove excess exudate and promote healing in acute or chronic wounds and second- and third-degree burns.
A dressing or compress [1] is a piece of material such as a pad applied to a wound to promote healing and protect the wound from further harm. A dressing is designed to be in direct contact with the wound, as distinguished from a bandage, which is most often used to hold a dressing in place. Modern dressings are sterile.
[2] [3] It is a temporary therapy (usually about 72 hours for each time usage) in which the dressing contains a special electronic warming card. The card heats to 100.4°F (38°C), bathing the wound in radiant heat. The closely sealed wound covering promotes a moist environment in the wound bed.
Timing is important to wound healing. Critically, the timing of wound re-epithelialization can decide the outcome of the healing. [11] If the epithelization of tissue over a denuded area is slow, a scar will form over many weeks, or months; [12] [13] If the epithelization of a wounded area is fast, the healing will result in regeneration.
An absorbent dressing is then placed above the tube and an occlusive or semi occlusive dressing is placed over the entire wound site. The far end of the tube is connected to an oxygen delivery unit, often portable, which delivers oxygen at a slow rate, typically 3ml per hour.
You may have heard about hyperbaric oxygen therapy as a recovery tool for wound healing, hair transplants and hair regrowth. Ask your plastic surgeon if they think it’s right for you.
Varying from infections to burns, wound care is a priority in saving the limb, extremity, or life of a person. In a hospital or medical care setting, more severe wounds like diabetic ulcers, decubitus ulcers, and burns require sterile or clean (depending on the severity of the wound) dressings and wound care.
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