Medical ultrasonic probe antibacterial isolation sleeve and preparation method thereof
An ultrasonic probe and isolation sleeve technology is applied in the field of biomedical materials to achieve the effects of preventing cross-infection, avoiding cross-infection, and reducing movement displacement.
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Embodiment 1
[0040] A method for manufacturing an antibacterial isolation cover of a medical ultrasonic probe, the steps are as follows:
[0041] (1) Prepare the solid dispersion of vulcanizing agent and vulcanization accelerator: get sublimed sulfur 20g, casein 3g, sodium laurylsulfonate 3g, potassium hydroxide 0.2g, deionized water 60g and carry out ball milling, ball milling speed 300r / min, and ball milled for 48 hours to obtain a vulcanizing agent dispersion with a solid content of about 30.4%. Get 20g of zinc diethyldithiocarbamate, 3g of casein, 3g of sodium dodecylsulfonate, and 60g of deionized water for ball milling at a ball milling speed of 300r / min for 48 hours to obtain a vulcanized product with a solid content of about 30.2%. accelerator dispersion.
[0042] (2) Pre-vulcanization of latex: Take 120 g of natural latex with a solid content of 40% and place it in a three-necked flask, pass nitrogen gas, heat up to 35° C., and set mechanical stirring at 100 r / min. Add 1.6g of ...
Embodiment 2
[0046] A method for manufacturing an antibacterial isolation cover of a medical ultrasonic probe, the steps are as follows:
[0047] (1) Prepare the solid dispersion of vulcanizing agent and vulcanization accelerator: get sublimed sulfur 20g, casein 1g, sodium laurylsulfonate 1g, potassium hydroxide 0.2g, deionized water 16g and carry out ball milling, ball milling speed 300r / min, and ball milled for 48 hours to obtain a vulcanizing agent dispersion with a solid content of about 58.1%. Get 20g of zinc diethyldithiocarbamate, 1g of casein, 1g of sodium dodecylsulfonate, and 16g of deionized water for ball milling at a ball milling speed of 300r / min for 48 hours to obtain a vulcanized product with a solid content of about 57.9%. accelerator dispersion.
[0048] (2) Pre-vulcanization of latex: Take 120 g of natural latex with a solid content of 40% and place it in a three-necked flask, pass nitrogen gas, heat up to 35° C., and set mechanical stirring at 100 r / min. Add 4.1 g of...
Embodiment 3
[0052] A method for manufacturing an antibacterial isolation cover of a medical ultrasonic probe, the steps are as follows:
[0053] (1) according to formula and process described in embodiment 2, prepare vulcanizing agent dispersion liquid, vulcanization accelerator dispersion liquid for subsequent use;
[0054] (2) Pre-vulcanization of latex: Take 120 g of natural latex with a solid content of 40% and place it in a three-necked flask, pass nitrogen gas, heat up to 35° C., and set mechanical stirring at 100 r / min. Add 3.0 g of vulcanizing agent dispersion, 5.0 g of vulcanization accelerator dispersion, 3.0 g of nano-zinc oxide dispersion, and 1.7 g of anti-aging agent 2246 in order. After the feeding is completed, the air is vented with nitrogen, and the temperature is slowly raised to 85°C. After reacting at 85°C for 3h, it was cooled to room temperature and left to mature for 72h.
[0055] (3) Preparation of antibacterial latex: sieve the above-mentioned pre-vulcanized la...
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