[Determination of radiation dosage for radiosterilization of disposable medical equipment]. / Wyznaczenie dawki promieniowania dla sterylizacji radiacyjnej sprzetu medycznego jednorazowego uzytku

The study on radiation resistance of 17169 microbial clones was performed including 15376 clones of bacteria isolated from the factory rooms in which injection needles were manufactured and those adjacent to strong sources of ionizing radiation. Out of this number of examined clones, there were selected 955 clones which survived the radiation doses of 2-4 Mrad. Basing on analysis of resistant bacteria according to radiation, the dosages for sterilization of disposable medical equipment are proposed.

[Packaging in the process of radiation sterilization. II. Physicochemical studies]. / Opakowania w procesie sterylizacji radiacyjnej. II. Badania fizykochemiczne.

The penetrability of the ionizing radiation through the matter makes possible the sterilization of the medical devices in the packed form by radiation method. The effect of the radiation should not bring any destructive changes in the material used for the package. In this paper have been discussed the results of the investigations of the one--and multilayer packaging materials from the point of view their utility for the radiation sterilization purposes. The changes of the useful parameters of the investigated materials have been determined in the dependence on the absorbed dose immediately after irradiation and the period of the durable keeping after the sterilization. The results of the mechanical investigations in the correlation to the results of the microbiological effects of the sterilized materials enabled to draw practical conclusions concerned the usability of the particular packages.

[Sterilization of packages using radiation. I. Microbiological studies]. / Opakowania w procesie sterylizacji radiacyjnej. I. Badania mikrobiologiczne.

Utilization of ionizing radiation for the sterilization purposes enables the sterilization of dressing materials in packed form together with the protecting packages. This procedure secures advantageous conditions for prolongation of storage time of manufactured articles in the sterile state. In this work the results of six years investigations dealing with the sterility of dressings sterilized by 60Co gamma-irradiation and packed in one--and multilayer packaging materials were shown. After sterilization those materials were storaged in various temperature conditions.