[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

材质优选医用级PVC且带弯头/圆钝头设计,硬度需适中:过软的管在负压下易塌陷贴壁吸不出痰,过硬则损伤黏膜。带控制阀(指压孔)的吸痰管可在插入时不带负压、到位后再控制,减少黏膜损伤

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