Trauma patients with no uterine contraction activity, usually do not have abruption, while patients with greater than one contraction per 10 minutes (6 per hour) have a 20% incidence of abruption.
没有宫缩的外伤孕妇一般无胎盘早剥，然而10分钟内宫缩超过一次（每小时6次）的患者胎盘早剥的发病率为20%。
The signals of fetal heart beating, uterine contraction and mark were processed with the DSP TMS320LF2407A. Meanwhile, the volume control of the heart beat sound was realized by the DSP module.
由TMS320LF2407A构成的DSP模块完成对胎心信号、宫缩压力信号和胎动标记请求信号的实时处理，同时实现心跳的音量控制。
Result: The results showed shortened labor duration, alleviated pain of uterine contraction, and moderate volume of postpartum hemorrhage in experiment group.
结果：显示用药组产程缩短，宫缩痛减轻，出血量不增加。
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