초록 ▼

A method of monitoring the progress of labor in a mother during childbirth, by using a position sensor to measure a predetermined point on the mother; monitoring the location of the position sensor in three-dimensional space; and monitoring the location of the fetal presenting part with respect to t

A method of monitoring the progress of labor in a mother during childbirth, by using a position sensor to measure a predetermined point on the mother; monitoring the location of the position sensor in three-dimensional space; and monitoring the location of the fetal presenting part with respect to the predetermined point on the mother. The location of the fetal presenting part may be indicated by a similar position sensor, or by imaging. Other conditions, such as effacement, cervical dilatation, and cervical position may also be monitored in a similar manner. A reference or affixation point may be provided to the position sensor by, for example, attaching a key or shaped object to one or more points on the fetus or mother.

대표청구항 ▼

A method of monitoring the progress of labor in a mother during childbirth, by using a position sensor to measure a predetermined point on the mother; monitoring the location of the position sensor in three-dimensional space; and monitoring the location of the fetal presenting part with respect to t

A method of monitoring the progress of labor in a mother during childbirth, by using a position sensor to measure a predetermined point on the mother; monitoring the location of the position sensor in three-dimensional space; and monitoring the location of the fetal presenting part with respect to the predetermined point on the mother. The location of the fetal presenting part may be indicated by a similar position sensor, or by imaging. Other conditions, such as effacement, cervical dilatation, and cervical position may also be monitored in a similar manner. A reference or affixation point may be provided to the position sensor by, for example, attaching a key or shaped object to one or more points on the fetus or mother. An ultrasound transmitter and/or receiver/transceiver system includes an ultrasound transducer, an ultrasound waveguide and a jacket, where said ultrasound waveguide is positioned within the jacket, the ultrasound transducer is located at one end of the ultrasound waveguide and at said end of the ultrasound waveguide, the ultrasound transducer can transfer ultrasound waves to, and receive them from, the ultrasound waveguide. An impedance step is provided between the ultrasound transducer and the area of the jacket facing away from the ultrasound transducer. In this fashion, when the ultrasound transmitter and/or receiver system per the invention is installed for instance in the measuring tube of a measuring device, undesirable cross coupling and crosstalk can be sharply reduced.