Unverified83% confidenceFactTime unknown
医用中频治疗常用载波频率为4000Hz,人体对4000Hz中频电流的皮肤阻抗最低,同等电流下皮肤刺痛感最小而深部作用最强
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83%
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Unverified中频理疗仪的调制中频频率应在1000-8000Hz范围内,其中2000-5000Hz对深层肌肉和神经镇痛效果最佳,纯低频(<1000Hz)机型皮肤刺痛感强、渗透浅,慢性深部疼痛不建议选纯低频83% similarUnverified用于面部/眼周塑形提拉的振动微电流类设备,振动频率需低频(≤200Hz)柔和款,高频振动虽然刺激感强但面部皮肤薄易松弛加剧,反而适得其反79% similarUnverifiedTENS经皮神经电刺激护腰频率范围应覆盖1-100Hz可调,低频2-10Hz用于内啡肽镇痛,高频50-100Hz用于门控镇痛,单一固定频率的产品适应症窄不建议选79% similarUnverified1MHz频率属于中低频超声波,穿透深度相对较深(可达数厘米),适合肌肉、关节等深层组织理疗,但对浅表皮肤护理不如3MHz高频机型精细78% similarUnverified低频TENS理疗仪脉冲频率范围通常为1-100Hz,低频(1-10Hz)偏向促进内啡肽镇痛,高频(50-100Hz)偏向即时闸门镇痛,可调频段越宽适应场景越多77% similar
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