Sterilization and antibacterial cooperative treatment method for medical instrument and intelligent medical instrument
A medical device and collaborative processing technology, which is applied in toilet sanitary equipment, water supply equipment, buildings, etc., can solve the problem of pH reduction, achieve the effect of inhibiting recurrence, excellent antibacterial effect, and good market promotion prospects
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Embodiment 1
[0063] A medical device sterilization and antibacterial co-processing method, comprising:
[0064] Step 1: prepare the ethyl acetate solution of acetic acid with a molar concentration of 0.5mol / L, and the ethyl acetate solution of triclosan with a molar concentration of 0.1mol / L;
[0065] Immerse the polyurethane sponge in the above-mentioned ethyl acetate solution of acetic acid for 5-20s to obtain a sponge with acetic acid / ethyl acetate solution;
[0066] DuPont Tyvek paper is used as a load carrier, immersed in triclosan-ethyl acetate solution for 5-20s, and dried for 12h-36h to obtain Tyvek paper with triclosan.
[0067] Step 2: Put the sponge with acetic acid / ethyl acetate solution and the polypropylene mesh strip in the same blister box, and the polypropylene mesh strip is attached to the inner wall of the container, and then soak and dry The dry Tyvek paper with triclosan is covered on the blister box and sealed to obtain the sample to be sterilized. Since the special ...
Embodiment 2
[0072]In this example, taking ultra-high molecular weight polyethylene suture thread as an example, the medical device sterilization and antibacterial synergistic treatment method is introduced. The ultra-high molecular weight polyethylene suture thread is a product produced by Dabo Medical Technology Co., Ltd., and the model is 2# Absorbable sutures. It should be noted that the method in the present invention is not limited to medical devices made of polyethylene, and other materials such as polypropylene, polyether ether ketone, polyurethane, polydioxanone, etc. At the same time, the method of the present invention is not limited to sutures, other types of medical devices such as antibacterial surgical tools, antibacterial suture tools, antibacterial dressings, antibacterial hernia patch, antibacterial meningeal patch, antibacterial tape thread anchor, antibacterial tape trip titanium The same applies to boards, etc.
[0073] Methods as below:
[0074] Step 1: Prepare the ...
Embodiment 3
[0085] In this example, the antibacterial effect of the ultra-high molecular weight polyethylene suture obtained in Example 2 under different pH conditions was studied.
[0086] Inhibition zone tests were carried out under different pH conditions, pH = 3, 6 and 9 respectively, using Staphylococcus aureus, two samples in each group, taking the average value, the antibacterial effects are shown in Figure 5 , Image 6 and Figure 7 , the antibacterial data are shown in Table 2.
[0087] Table 2 The antibacterial effect table of suture after 24h culture in different pH environments
[0088] group pH=3 pH=6 pH=9 1 1.1 1.5 4.0 2 1.2 1.5 4.2 Average diameter of inhibition zone / cm 1.15 1.5 4.1
[0089] from Figure 5 , Image 6 , Figure 7 As can be seen from Table 2, when the environmental pH value increases, reaching alkaline conditions can accelerate the hydrolysis of triclosan carboxylate esters and improve antibacterial performance...
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