Årsmøde 2005- Abstract - DKCS

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Instrumenter • Operations udstyr • Teknik • Undervisning Kirurgiske instrumenter i topkvalitet: Stille, Asanus, Tontarra Generelle kirurgiske instrumenter: Reda og Biselli Keramisk coatede instrumenter: Fehling Billige kirurgiske instrumenter: Opitek eco-line Retractor systemer: Gray Surgical Armborde, lejer og tilbehør: Reison Medical Trykaflastning: Oasis - Trulife Senge afskærmning / Rum inddeling: Ropimex Undervisning i instrumentlære: I afdelingen – uden omkostninger Naverland 2 • 2600 Glostrup • Telefon 39 66 16 44 • Fax 39 66 16 55 E-mail: mail@opitek.dk • www.opitek.dk
particle count in the surrounding air ie the background count, we obtained percentage readings, which gave predictable and unpredictable efficiency results !! Full details of the test would form a separate presentation and has been presented to the UK Central Sterilisation Club and submitted for publication in a European Journal. Typical results with single envelope packaging are shown.These results predictably show Linen as a poor barrier. SMS types (Choice Wrap) as a good barrier. Wet laids and crepe paper as poor performers !In the case of Choice wrap, we know that Choice Dry has a higher barrier level (more melt fibres) than the standard Choice wrap and our test is picking up this difference. The SMMS product tested, we suspect had two very light weight melt fibre layers giving inferior filtration compared to the Choice products. It is interesting to note that the Purple transportation wrap, under the conditions of test, performs better than the ‘approved‘ wet laids and crepe paper !!! We, therefore, decided to change the folding techniques and modified the folding. This additional tuck under is often used when two layer / simultaneous packing is used. Again the results were surprising. Choice Wraps changed very little and remained superior. Wet laids changed very little but remained inferior! Crepe, however, and reinforced crepes improved considerably. PARTICLE PENETRATION TEST. In order to try and understand this even further we decided to develop a new test capable of testing just the particle penetration through the wraps and eliminate the variations created by different folding techniques. This has led us to develop our particle tester, with an inverted pyramid to which we can seal a 50 x 50 cm test sheet. Again the results are in the same order as before, with Choice Dry and Choice at the top and the wet laids at the bottom !!!! Crepe paper is constructed of pure cellulose. These fibres can be fibrillated, less so in reinforced crepe. Additional folding and layers will enhance the performance of pure cellulose products. This certainly accounts for the poor results in the pack integrity test. Choice Dry and Choice Wraps are produced with strong spun bonded fibres and enclose the very much finer Melt blown fibres. These melt blown fibres are extremely fine and discontinuous. With good dispersion and in the right quantity, these provide excellent filtration with rapid penetration of gasses , just what is needed for the autoclaving process and for maintaining sterility. Transportation wraps, based totally on spun polypropylene fibre will vary greatly depending on the fibre denier and formation , but some filtration effect is provided and possibly superior to crepe papers , when folded and used as a wrap . DOUBLE LAYERS Under the particle penetration test , the air can only pass through the product and not escape through folds as in the pack integrity test, but the pattern remains the same . Again the Choice and Choice Dry changed ver little as the spun in a single layer performs so well. Wet laids still remain the worst performers. BACK TO PACK INTEGRITY Our work is clearly showing the superiority of our Choice and Choice Dry material . Gaseous penetration is excellent and the performance of one layer very little improved by adding a second layer. Therefore, we conclude that an inner layer of Choice or Choice Dry and one outer layer of Purple Transportation Wrap will provide excellent barrier protection of the inner wraps and excellent handling properties of the outer transportation wrap . PACK INTEGRITY – A FINAL THOUGHT The Clinipak Pack Integrity test can offer departments a means of rating the packing method adopted, by offering numeric comparisons and ensuring that any changes made are improvements over the current practices. This could be very valuable when making changes for cost or protection reasons and to offer reassurance to theatres or other end user groups that the changes made are working and effective. 27
Page 1: ÅRSMØDE 2005 Nyborg Strand Abstra
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