Patents Assigned to DIACOUSTIC MEDICAL DEVICES (PTY) LTD
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Patent number: 9198634Abstract: A process for pre-processing recorded and digitized heart sounds and corresponding digitized ECG signals is provided. The pre-processed signals (203) are suitable for input into an automatic decision support system implemented by means of a diagnostic decision network (205), used for diagnosing and differentiation between normal/functional (206) and pathological (207) heart murmurs, particularly in pediatric patients. The process includes identifying or predicting locations of individual heart beats within the heart sound signal, identifying the positions of the S1 and S2 heart pulses within the respective heart beats, predicting and identifying the locations and durations of the systole and diastole segments of the heart beats (302), determining if segmentation of the heart sound signal is possible based on the selected and isolated heart beats (305), and the segmentation of the respective heart beats into segments for allowing better feature extraction.Type: GrantFiled: August 3, 2010Date of Patent: December 1, 2015Assignee: DIACOUSTIC MEDICAL DEVICES (PTY) LTDInventors: Eugene Pretorius, Otto Marsél Strydom, Matthys Louwrens Cronje, Willem Lodewyk Schoonbee, Michiel Mayne Blanckenberg
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Patent number: 9168018Abstract: A method and system for electronically classifying a pre-processed heart sound signal of a patient as functional (normal) or pathological is provided. The pre-processed patient heart sound signal is segmentised and features are extracted therefrom (104) to build up a feature vector which is representative of the heart sound signal. The feature vector is then fed to a diagnostic decision support network (105) comprising a plurality of artificial neural networks, each relating to a known heart pathology, which is in turn used to conduct the classification.Type: GrantFiled: February 18, 2015Date of Patent: October 27, 2015Assignee: DIACOUSTIC MEDICAL DEVICES (PTY) LTDInventors: Eugene Pretorius, Otto Marsél Strydom, Matthys Louwrens Cronje
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Patent number: 8992435Abstract: A method and system for electronically classifying a pre-processed heart sound signal of a patient as functional (normal) or pathological is provided. The pre-processed patient heart sound signal is segmentised and features are extracted therefrom (104) to build up a feature vector which is representative of the heart sound signal. The feature vector is then fed to a diagnostic decision support network (105) comprising a plurality of artificial neural networks, each relating to a known heart pathology, which is in turn used to conduct the classification.Type: GrantFiled: August 25, 2011Date of Patent: March 31, 2015Assignee: Diacoustic Medical Devices (Pty) LtdInventors: Eugene Pretorius, Otto Marsél Strydom, Matthys Louwrens Cronje
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Publication number: 20130226019Abstract: A method and system for electronically classifying a pre-processed heart sound signal of a patient as functional (normal) or pathological is provided. The pre-processed patient heart sound signal is segmentised and features are extracted therefrom (104) to build up a feature vector which is representative of the heart sound signal. The feature vector is then fed to a diagnostic decision support network (105) comprising a plurality of artificial neural networks, each relating to a known heart pathology, which is in turn used to conduct the classification.Type: ApplicationFiled: August 25, 2011Publication date: August 29, 2013Applicant: DIACOUSTIC MEDICAL DEVICES (PTY) LTDInventors: Eugene Pretorius, Otto Marsél Strydom, Matthys Louwrens Cronje
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Publication number: 20120130263Abstract: A process for pre-processing recorded and digitised heart sounds and corresponding digitised ECG signals is provided. The pre-processed signals (203) are suitable for input into an automatic decision support system implemented by means of a diagnostic decision network (205), used for diagnosing and differentiation between normal/functional (206) and pathological (207) heart murmurs, particularly in paediatric patients. The process includes identifying or predicting locations of individual heart beats within the heart sound signal, identifying the positions of the S1 and S2 heart pulses within the respective heart beats, predicting and identifying the locations and durations of the systole and diastole segments of the heart beats (302), determining if segmentation of the heart sound signal is possible based on the selected and isolated heart beats (305), and the segmentation of the respective heart beats into segments for allowing better feature extraction.Type: ApplicationFiled: August 3, 2010Publication date: May 24, 2012Applicant: DIACOUSTIC MEDICAL DEVICES (PTY) LTDInventors: Eugene Pretorius, Otto Marsel Strydom, Matthys Louwrens Cronje, Willem Lodewyk Schoonbee, Michiel Mayne Blanckenberg