Surgical bandages

Medicated bandages, surgical dressings and medicated plasters. 

Nonmedicated bandages, surgical dressing, plasters and dental fillings. 

Foil, film, and general industrial tapes Carton and box sealing tapes Medical dressings and bandages Surgical drapes Diagnostic electrodes Optical display films... 

Medical use of rosin derivatives on tapes, bandages, surgical and dental dressings, wart paints (Lachapelle and Leroy 1990) and hydrocolloid dressings has been reported (Sasseville et al. 1997). For several hydrocolloid dressings, the allergen is a modified ester of colophony, the pentaerythrite ester (Hausen and Kulenkamp 1998). Most patients with a sensitisation to colophony report intolerance of brown coloured tapes. However, we have not found any report of occupational contact dermatitis to medical colophony resin adhesives. 

Nuclei were first isolated by Miescher (1869) from pus cells recovered from discarded surgical bandages. The principle constituent—a phosphorus-rich material then called nuclein—was stained by methyl green. A few years later salmon sperm were shown to contain a phosphorus-rich acidic compound—the nucleic acid—and a basic protein protamine. Further work by Kossel, Levene,... 

The biochemical investigation of DNA began with Friedrich Mescher, who carried out the first systematic chemical studies of cell nuclei. In 1868 Mescher isolated a phosphorus-containing substance, which he called nuclein, from the nuclei of pus cells (leukocytes) obtained from discarded surgical bandages. He found nuclein to consist of an acidic portion, which we know today as DNA, and a basic portion, protein. Mescher later found a similar acidic substance in the heads of sperm cells from salmon. Although he partially purified nuclein and studied its properties, the covalent (primary) structure of DNA (as shown in Fig. 8-7) was not known with certainty until the late 1940s. 

Medicated dressings where the medication has a curative function that is not limited to sterilising the dressing are medicines, whereas non-medi-cated bandages and other surgical dressings cire medical devices. 

A tertiary amine N-oxide is used as a solvent for the pulp. A silver-based antibacterial agent and, optionally, magnetised mineral ore powder are added and the material is solvent spun to produce cellulose fibre, which is useful as medical devices, such as bandages, gauze and surgical robes. 

Cover your mouth and nose. If gas masks are not available, use a surgical mask or a handkerchief. An improvised mask can be made by soaking a clean cloth in a solution of 1 tablespoon of baking soda in a cup of water. While this is not highly effective, it may provide some protection. Covei- bare arms and legs and make sure any cuts or abrasions are covered or bandaged. 

Devices classified as Class I only are very simple by design and have a very low potential to cause harm. Examples include toothbrushes, tongue depressors, elastic bandages, examination gloves, eye pads, ice bags, nasal rubber bulb syringes, hand-held surgical instruments. 

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