Presentation on pesticide and Control of pesticides.

1. Surgical dressing,
classification of of
fibers as
vegetable,animals and
synthetic fibers
Khalil Ktk
Cognocy
Kmu ips

3. Surgical dressing
 A material used to protect a wound and promote healing is called surgical
dressing
 They support and protect the injured area,shoul be sterile
 Formed from loose threads and fibers

4. Classification of surgical dressing
 They are two types
1. Primary surgical dressing
2. Secondary dressing

5. Primary dressing
 Primary are those s.dressing that are in direct contact with wound
 Primary dressing are applied over wound surface to absorb pus ,mucus,blood
and wound secretion they are actually absorbent
 E.g petrolatum impregnated gauge,viscose gause,absorbent pad ,gauze
pad,RayOn,cotton,wool and hydrogel etc

6. Secondary surgical dressing
 They are not in direct contact with wound but support primary dressing
 1 BANDAGES
 A bandages is a material which holds dressing at the required site
 It may be elastic or non elastic in nature
 Common gauze roller bandage and muslin bandage rolls are used

7. Adhesive tapes
 Surgical adhesive tapes may be a rubber based adhesive or an acrylate based
 They are used to stick the abandage and primary dressing to wound surface

8. Protectives
 Protectives are employed to cover wet dressings and for retention of heat
 They prevent the escape of moisture from the dressing
 They are plastic sheeting,waxed or oil coated paper

9. Fibers
 Fibers is thin thread of natural and artificial carbohydrate substances that is
used to make tO make cloth or rope
 These are non digestible carbohydrates
 Are also used medical to make surgical dressing

10. Animals fiber
 These are the fibers abstained from animal
 These are two
 1 wool
 2 silk
 1 WOOL
 Synoyme; animal wool,sheep wool
 BIOLOGICAL SOURSE; obtained from protective covering or fleece of
sheep,ovis arries Linn
 FAMILY; bovidae
 ORDER; ungulata

11. Continue
 GEOGRAPHICAL SOURSE
 Wool producing countries are Australia,Russia,India and america
 USES
 Wool is used to Prepare crepe bandages and dressing s and medium for
filteration and and staining

12. Silk
 BIOLOGICAL SOURSE
 Obtained from the cocoon of bombyx Mori Linn ,commly known is silk worm
worm or mulberry silk worm
 ODOUR
 Lepidoptera
 GEOGRAPHICAL SOURSE
 China,Japan,India,Asia,Italy etc
 CHEMICAL NATURE
 Are protein fibroin on hydrolysis yeilds glycine and alanine
 USES; for making ligatures and sieves

13. Synthetic fibers
 Synthetic fibers are produced by poly condensation of organic molecules
 They are more stronger than natural fibers
 Nylon,terylen,orlon and polyethlene

14. Vegetable fibers
 These are obtained from vegetable sourese
 Cotton,jute,hemp,flax