What is gauze for?

The main function of medical gauze is to dress the wound and clean up the blood stain of the wound during the operation.

There are generally two ways to supply medical gauze products, one is non-sterile and the other is sterile. Sterile medical gauze can be used directly, and non-sterile gauze can only be used after being sterilized by high temperature and high pressure steam or ethylene oxide.

The base material of medical gauze is medical degreasing gauze, which should be soft, odorless and tasteless; Gauze piece should be folded flat, without burr, stubble and loose thread; Medical gauze pieces can be divided into wrapped, non-wrapped, flat, brushed, cut, developed and non-developed, and can also be divided into sterilized and unsterilized gauze pieces from the packaging.

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Extended data:

(1) Traditional gauze: it is made of medium and coarse cotton yarn in plain weave. The organizational structure is sparse. After bleaching and degreasing, it has good moisture absorption and moisture dissipation performance. Products are strictly sterilized at high temperature and high pressure. Suitable for medical dressings, dressings and other substrates. Elastic bandage gauze is woven by plain weave (or knitting warp knitting) with strong twisted cotton strands or spandex cotton core-spun yarns arranged in left and right directions as warp yarns and coarse single yarns as weft yarns. The elastic elongation of warp band can reach 50%, which has the function of removing blood stasis and dispersing blood, and is used for dressing wounds.

(2) Wound gauze (or non-stick gauze): cellulose pulp is added with acetic anhydride, esterified with a small amount of sulfuric acid, and spun into cellulose diacetate fiber. It is white, soft, fluffy, non-toxic, tasteless and non-irritating to the skin. The moisture regain (at 20℃ and 65% relative humidity) is 6%~7%. It can be woven into gauze and bandage, which has the advantages of not sticking blood and purulent secretions, and can promote the early healing of wounds.

(3) Non-woven gauze: The medical gauze blank is formed by spunlace consolidation of a cotton net, which is bleached and disinfected for later use.

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