A TECHNIQUE FOR ASSOCIATING REAL TIME ULTRASOUND AUDIO SIGNAL WITH DIGITAL CARDIOTOCOGRAPHY
Publication Date: 2017-Feb-01
The IP.com Prior Art Database
A technique for associating real time ultrasound audio signal with digital cardiotocography (CTG) is proposed. The technique comprises recording and storing data of fetal heart rate along with corresponding ultrasound audio signal on persistent memory of the CTG device. The stored data is subsequently accessed and output in sync on the display and speaker of the CTG device.
The present disclosure relates generally to cardiotocography (CTG) and more particularly to technique for associating real time ultrasound audio signal with digital CTG.
Generally, in a medical fetal monitor or cardiotocography (CTG), fetal heart rate and ultrasound audio signals are generated by a transducer. This physiological data or fetal heart rate and ultrasound audio signals of fetal heart beat are communicated to a processing and display device. The processing and display device comprises a computing unit, a memory, a display, a speaker and a user input/output control. The fetal heart rate is plotted on the display and this graph is referred to as cardiotocograph. Clinicians use CTG information to monitor health of a fetus. The ultrasound audio signals generated are played on the speaker.
As depicted in Figure 1, the fetal heart rate is also stored on the persistent memory of the device. However, the ultrasound audio signals are not stored and only output for clinician consumption in real time. Thereby, as depicted in Figure 2, conventional CTG devices cannot render the ultrasound audio signal along with the fetal heart rate at a later time for analysis and reference.
It would be desirable to have a technique for associating real time ultrasound audio signal with digital CTG.
BRIEF DESCRIPTION OF DRAWINGS
Figure 1 depicts a conventional cardiotocography (CTG) device that stores only fetal heart rate data in persistent memory.
Figure 2 depicts the conventional CTG device not rendering the ultrasound audio signal along with the fetal heart rate at a later time for analysis and reference.
Figure 3 is a flow chart depicting storage of ultrasound audio signal or sound of fetal heart beat in persistent memory.
Figure 4 is a flowchart depicting retrieval and output in sync of stored data, including fetal heart rate and ultrasound audio signal of fetal heart beat, from persistent memory.
Figure 5 depicts play back of the stored ultrasound audio signal of fetal heart beat in sync with the...