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Of fetal heart frequency monitor with a wide region of search

机译：胎心监护仪的搜索范围很广

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A continuous, not the invasive fetal heart frequency measuring value is by means of an ultrasound probe (14) is generated, which, on the abdomen (16) of the nut (12) is arranged. The ultrasonic probe (14) comprises a plurality of ultrasonic transducer (30), which in a housing (24) are arranged, which has a radiating surface (32). The radiating surface (32) is designed so that the individual ultrasonic beams, which by means of the plurality of ultrasonic transducer (30) are produced, to defocusing. The radiating surface (32) onto the ultrasonic beams, and produces a further detection range for the ultrasonic probe (14). The control device (90), which in the heart frequency monitor (10) is selectively activated various combinations of the plurality of ultrasonic transducer (30), in order to the signal - rausch - ratio is to be reduced, while the ultrasonic probe (14), permits a reduction of the fetal heart beat to locate and subsequently the signal - rausch - ratio during a continuous heart frequency monitoring to be increased.
机译：借助于超声探头（14）产生连续的而不是侵入性的胎儿心脏频率测量值，该超声探头布置在螺母（12）的腹部（16）上。超声探头（14）包括多个超声换能器（30），该超声换能器（30）布置在壳体（24）中，该壳体具有辐射表面（32）。辐射表面（32）被设计成使得借助于多个超声换能器（30）产生的各个超声束散焦。辐射表面（32）照射到超声波束上，并为超声波探头（14）产生另一个检测范围。控制装置（90），其在心脏频率监测器（10）中有选择地激活多个超声换能器（30）的各种组合，以便降低信号-劳斯-比， 14）可以减少胎儿心跳的定位，并随后增加连续心跳频率监测期间的信号-rausch-比值。

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