HEART SOUND SIMULATOR
First Claim
Patent Images
1. A heart sound simulator configured to determine heart sounds from photo-plethysmograph data, the heart sound simulator comprising:
- an optical sensor configured to output one or more sensor signals responsive to attenuation of light by body tissue, said optical sensor including a light source and light detector; and
a processor receiving at least one signal responsive to said sensor signal, said processor configured to process the received signal to determine a plurality of plethysmograph waveforms and output a heart sound signal responsive to at least one of said plurality of plethysmograph waveforms.
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Abstract
The disclosure includes systems and methods directed toward simulating heart sounds. The system can include an optical sensor configured to obtain data for generating a plurality of plethysmograph waveforms at a first frequency. The heart sound simulator can also include a processor in communication with the sensor. The processor can be configured to generate a heart sound signal based on at least one of the plurality of plethysmograph waveforms.
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Citations
31 Claims
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1. A heart sound simulator configured to determine heart sounds from photo-plethysmograph data, the heart sound simulator comprising:
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an optical sensor configured to output one or more sensor signals responsive to attenuation of light by body tissue, said optical sensor including a light source and light detector; and a processor receiving at least one signal responsive to said sensor signal, said processor configured to process the received signal to determine a plurality of plethysmograph waveforms and output a heart sound signal responsive to at least one of said plurality of plethysmograph waveforms. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of simulating heart sounds using one or more plethysmograph signals responsive to light attenuated by body tissue detected by an optical sensor in proximity to a measurement site, the method comprising:
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receiving signals responsive to light attenuated by body tissue; identifying a plurality of plethysmograph waveforms using a signal processor; selecting at least one plethysmograph waveform using said signal processor; and electronically generating a heart sound signal based on the at least one plethysmograph waveform. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of producing clinically relevant information from trend data, said information being different from said stored trend data, the method including:
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acquiring said trend data, wherein said trend data includes one or more of an input signal, plethysmograph, or measurement data, and wherein the input signal is responsive to light attenuated by body tissue; selecting a time window in said trend data; and producing data different from said trend data, said produced data having a higher frequency than the stored data. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification