Hydrogel functional dressing for preventing pressure sores

Abstract

The invention relates to a hydrogel functional dressing for preventing pressure sores. The hydrogel functional dressing comprises a support material layer and a hydrogel functional layer, wherein the support material layer is arranged at the bottom layer of the hydrogel functional layer; the hydrogel functional layer is stuck on the support material layer; and the hydrogel functional layer is prepared by 5-70% of hydrophilic polymer material and 30-95% of water by mass percent through one or combination of more in a physical method, a chemical method or a radiation method. The hydrogel functional dressing for preventing pressure sores is soft and elastic in properties, has good biocompatibility, is free from stimulation and sensitization, can disperse and buffer the pressure, and reduces the friction force and the shear force.

Description

technical field [0001] The invention relates to a hydrogel functional dressing for preventing pressure sores. Background technique [0002] Pressure sores are due to long-term pressure on local tissues, resulting in continuous ischemia, hypoxia, and malnutrition, resulting in tissue ulceration and necrosis. In surgical patients under anesthesia, due to the loss of all or part of the body's consciousness, the muscles lose their ability to regulate themselves, which is more likely to cause pressure sores. Skin injury, the chance of acute pressure sore during operation is relatively increased. According to the US National Decubitus Advisory Group, there are 1 million people suffering from pressure sores in the United States alone, 5.8% of hospitalized patients in Japan have pressure sores, and the incidence of pressure sores in hospitals is 3% to 14%. Paralyzed patients and elderly patients are more likely to develop pressure sores due to long-term bed rest or sitting in wheel...

AI Technical Summary

Problems solved by technology

[0003] Clinically, pressure sores are prevented by turning over and massaging, as well as air gaskets, baking lamps, and applying Vaseline to prevent pressure sores. However, air gaskets can easily block local blood circulation, causing venous congestion and edema, and hinder sweat evaporation. And stimulate the skin, especially those with edema and obesity should not use it; use baking lamps to dry the skin, increase the metabolism and oxygen demand of tissue cells and cause cell ischemia, and even necrosis; Without respiratory function, its water evaporation is maintained at a low level, which is much lower than that of normal skin, resulting in skin maceration

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