| 摘要 |
A method for determining at least one maternal physiological parameter out of a heart rate and a breathing rate, comprising the following steps: (a) attaching at least two transducers units (16, 18) of a fetal monitoring system (10) to a maternal abdomen (14); (b) evaluating an acceleration signal regarding at least one out of frequency, amplitude, and signal pattern to derive an acceleration signal corresponding to the at least one maternal physiological parameter; a fetal monitoring system (10), comprising at least two transducers units (16, 18), at least one transducer (24, 26, 28) provided for taking up physiological parameters, at least a first signal processing unit (34), and at least one acceleration sensor (30, 32) different from the at least two transducers (24, 26, 28), wherein the at least one acceleration sensor (30, 32), in at least one operating mode, is rigidly mounted inside a housing (20, 22) of one of the at least two transducer units (16, 18); and wherein the first signal processing unit (34) is provided to evaluate the acceleration signal regarding at least one out of frequency, amplitude, and signal pattern to derive an acceleration signal corresponding to at least one maternal physiological parameter; and a transducer unit (16, 18) for use in a fetal monitoring system (10). |
| 主权项 |
1. A method for determining at least one maternal physiological parameter out of a heart rate and a breathing rate, comprising the following steps:
receiving a processed acceleration signal and at least one transducer signal corresponding to a fetal heart rate (FHR), the at least one transducer signal being provided by at least one transducer provided for taking up physiological parameters and converting them into corresponding transducer signals, and the processed acceleration signal being provided by a at least one signal processing unit provided to process said transducer signals and said acceleration signal and for evaluating the acceleration signal regarding at least one out of frequency, amplitude, and signal pattern to derive the processed acceleration signal corresponding to the at least one maternal physiological parameter, the acceleration signal being acquired by at least one acceleration sensor provided for converting mechanical acceleration at the maternal abdomen into a corresponding acceleration signal, wherein the at least one acceleration sensor is different from the at least one transducer and wherein the at least one acceleration sensor in at least one operating mode, is rigidly mounted inside a housing that at least partially encompasses the at least one transducer; determining and tracking a cross-channel verification between the processed acceleration signal and at least one transducer signal corresponding to a fetal heart rate (FHR); and depending on a result of the cross-channel verification, activating an alert signal. |
