Degradable disposable oropharyngeal airway and preparation method
An oropharyngeal airway, disposable technology, applied in the field of bioengineering of medical devices, to achieve large material and energy saving effects, saving production power consumption, and saving input costs
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[0031] Example 1 Injection molding method of degradable disposable oropharyngeal airway:
[0032] The first step, vacuum drying: the degradable substrate pellets of formula 1, formula 2 or formula 3 were vacuum-dried at 80°C for 3 hours, and then used.
[0033] The second step, injection molding: add the dried degradable substrate pellets of formula 1, formula 2 or formula 3 to an injection molding machine for injection molding.
[0034] The feed inlet is 150°C, the compression section is 160°C, the metering section is 170°C, and the nozzle is 165°C;
[0035] Mold temperature: 15-30°C;
[0036] Injection pressure: 45-80Mpa;
[0037] Injection time: 44 seconds;
[0038] The holding time is: 0 seconds;
[0039] The screw speed is: 180 rpm;
[0040] A degradable disposable oropharyngeal airway using the degradable base material of formula 1, formula 2 or formula 3 was obtained.
[0041] The above-mentioned embodiments have described the biodegradable disposable oropharyngea...
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