Medical polymer sponge and method for removing initial contaminating bacteria thereof
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A technology of macromolecules and polluting bacteria, applied in the medical field, can solve the problem of fever of patients, and achieve the effect of accelerating product aging, simple operation and easy industrialization.
Pending Publication Date: 2022-05-13
萨科(厦门)医疗科技有限公司
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Problems solved by technology
[0006] If the bacterial endotoxin and heat source indicators of the product exceed the standard, the product will cause fever in the patient if the product is used on the wound surface
Method used
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Embodiment 1
[0029] The sample numbers are 1#-1 and 1#-2 respectively.
[0030] The cleaning method in S1 is to wash according to the process of washing for 7 minutes and dehydrating for 6 minutes, and the process cycle is 9 times. Carry out secondary dehydration afterwards, the time of secondary dehydration is 8 minutes.
[0031] The drying condition in S2 is to dry for 3 hours at a temperature of 55°C.
Embodiment 2
[0033] The sample numbers are 2#-1 and 2#-2 respectively.
[0034] The cleaning method in S1 is to wash according to the process of washing for 5 minutes and dehydrating for 5 minutes, and the cycle is 7 times.
[0035] The drying condition in S2 is to dry at a temperature of 70° C. for 5 hours.
Embodiment 3
[0037] The sample numbers are 3#-1 and 3#-2 respectively.
[0038] The cleaning method in S1 is to wash according to the process of washing for 10 minutes and dehydrating for 8 minutes, and the cycle is 11 times. Carry out secondary dehydration afterwards, the time of secondary dehydration is 10 minutes.
[0039] The drying condition in S2 is to dry for 3 hours at a temperature of 50°C.
[0040] The specific test data of the medical polymer sponge after the above-mentioned three embodiments are as follows:
[0041] 1 bacterial endotoxin
[0042] Bacterial endotoxin standard formulation: According to GB / T 14233.2-2005 Medical infusion, blood transfusion, injection equipment inspection method Part 2: Biological test method 4.5.3 Recommended bacterial endotoxin limit for infusion, blood transfusion, and injection equipment in the preparation of test solution More than 20EU / piece.
[0043]
[0044] It should be noted that the calculation formula of the standard L is as foll...
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Abstract
The invention relates to a medical polymer sponge and an initial contaminating bacterium removal method thereof, and the initial contaminating bacterium removal method comprises the following steps: S1, physical cleaning: putting the medical polymer sponge into elution equipment, and cleaning to remove contaminating bacteria; s2, drying, wherein the medical polymer sponge cleaned in the S1 is put into drying equipment to be dried. The medical polymer sponge is prepared by the method. Compared with the prior art, the cleaning method has the advantages that the cleaning method is easy to operate, rapid, efficient and easy to industrialize, the initial contaminating bacteria of the medical polymer sponge product are reduced, the product quality is guaranteed, and the use safety of a patient is guaranteed; 2, the qualified initial contaminating bacteria of the medical polymer sponge are ensured through a physical cleaning mode; 3, through a physical cleaning mode, the bacterial endotoxin index of the medical polymer sponge is ensured to be qualified; meanwhile, product aging acceleration caused by secondary sterilization of the medical polymer sponge is avoided.
Description
technical field [0001] The invention relates to the medical field, in particular to a medical polymer sponge and a method for removing initial polluting bacteria. Background technique [0002] The current molding process of commercially available medical polymer sponges is foaming, and the foamed products have relatively high initial contamination bacteria; products with too high initial contamination bacteria will cause bacterial endotoxin and heat source indicators to exceed the standard after final sterilization. [0003] In order to reduce the initial pollution bacteria, the existing medical polymer sponges mostly achieve the effect of killing microorganisms and reducing the initial pollution bacteria through secondary sterilization (that is, the medical polymer sponge is foamed and molded, and the initial pollution bacteria are qualified by one-time sterilization. The product goes into assembly and the finished product is sterilized again to form the final product). St...
Claims
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