[KongchangAI]
Unverified90% confidenceDecision RuleTime unknown

选购家用胎心仪应确认具备医疗器械注册证(国内为二类医械,标注‘械字号’而非‘消字号/玩具’),无械字号的‘胎教仪’类产品测得的‘胎心’常混入孕妇腹主动脉搏动,易误判

1
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90%
Confidence
Long-term
Relevance
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