Comparison of the shelf life of sterilization of medical devices sterilized by steaming package in 2 pieces of Non Woven during 4 weeks and 8 weeks. Sisaket Hospital

Abstract

     This experimental research comparing shelf life of sterility of medical devices sterilized by steaming wrapped with 2 non-woven sheets during a period of 4 weeks and 8 weeks, Sisaket Hospital. Sample included of Wrap medical devices with 2 pieces of non-woven fabric and sterilizing by steaming under standard pressure from a central supply unit. Random evaluations were performed at 4 weeks for 375 sets, and 8 weeks for 375 sets, respectively, to assess the integrity of the wraps, expiration date, absence of fraying, remaining autoclave tape, temperature and relative humidity of the shelves and microbial sterility at 4 and 8 weeks. Data were analyzed with descriptive statistics as numbers, percentages, means and standard deviations and estimated as standard comparison points estimation at a statistic significant level 0.01.
     Results found that medical devices’s wrapping is not torn or frayed. The adhesive tape attached to hold the non-woven is firmly attached, not exposed, or torn, not wet. Physical integrity at 4 weeks is completed for 99.8 percent (p<0.01*) and During 8 weeks for 98.6% (p<0.01*), also its had 1.4% fraying. Temperature measurement results at 4 weeks averaged 24.4-30.2 degrees Celsius (p>0.01) and average relative humidity 59.6-67.1 percent (p<0.01*) and at 8 weeks averaged 26.6-27.7 degrees Celsius (p>0.01) and average relative humidity 52.5-58.1 percent (p<0.01*). Microbial contamination was not found 100-100% (p<0.01*) and 8 weeks did not find 100-100% contamination (p<0.01*).