发明名称 |
Portable hand held doppler fetal heart rate probe with selective power settings |
摘要 |
A probe in a hand held ultrasonic Doppler fetal heart beat detector and monitoring system comprising a crystal for transmitting ultrasonic energy, a variable power source connected to said crystal for driving the crystal at a selected power setting and a microprocessor for selecting a power setting for the variable power source.
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申请公布号 |
US5827969(A) |
申请公布日期 |
1998.10.27 |
申请号 |
US19960662049 |
申请日期 |
1996.06.12 |
申请人 |
MEDASONICS, INC. |
发明人 |
LEE, WILLIAM C.;FISHER, DEL D.;BOROSS, ANDRAS |
分类号 |
A61B8/02;(IPC1-7):A61B8/06 |
主分类号 |
A61B8/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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