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A bandage is a piece of material used either to support a medical device such as a dressing or splint, or on its own to provide support for the movement of a part of the body. When used with a dressing, the dressing is applied directly on a wound, and a bandage is used to hold the dressing in place.
Plaster bandages consist of a cotton bandage that has been combined with plaster of paris, which hardens after it has been made wet. Plaster of Paris is calcined gypsum (roasted gypsum), ground to a fine powder by milling. When water is added, the more soluble form of calcium sulfate returns to the relatively insoluble form, and heat is produced.
Hydrocolloid dressing: This type of dressing contains two layers: inner colloidal layer and outer waterproof layer. It contains gel forming agents such as carboxymethylcellulose, gelatin and pectin. When the dressing is in contact with the wound, the wound discharge are retained to form gel which provides moist environment for wound healing.
Hydrogel dressing is a medical dressing based on hydrogels, three-dimensional hydrophilic structure. [1] The insoluble hydrophilic structures absorb polar wound exudates and allow oxygen diffusion at the wound bed to accelerate healing. [ 2 ]
The backing and bag are often made of coated paper, but may be made of plastic. The adhesive sheet is usually a woven fabric, plastic ( PVC , polyethylene or polyurethane ), or latex strip. It may or may not be waterproof; if it is airtight, the bandage is an occlusive dressing .
Mold application. Mould material is applied to the surface of the model's body. The mould material is usually applied as a thick liquid that takes the shape of the body. Body parts may also be dunked into containers of mold media (except plaster). Mold curing and reinforcement. The applied mold material cures to a more rigid and solid state.
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- 914 Williams Ave, Columbus, OH · Directions · (614) 545-3190