Apparatus and method for outputting heart sounds
First Claim
1. A method of outputting heart sounds using an implanted system, comprising:
- generating first data representative of heart sounds in the implanted system using ensemble averaging;
receiving the first data from the implanted system;
generating control signals using the first data;
generating timing comparison control signals indicative of a timing of the control signals; and
applying the control signals and the timing comparison control signals to an output device to cause the output device to generate outputs which are representative of the heart sounds and timing information related to the heart sounds.
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Accused Products
Abstract
An apparatus for outputting heart sounds includes an implantable system and an external system. The implantable system includes a sensor for generating sensed signals representing detected heart sounds, an interface circuit and a control circuit for receiving the sensed signals, generating data representing the heart sounds therefrom, and transmitting the data to the external system via the interface circuit. The external system includes an interface circuit for communicating with the implantable system, and a control circuit for receiving the data representing the heart sounds and for generating control signals that cause an output device to generate outputs representing the sounds. The implantable system may also include a sensor(s) for detecting cardiac electrical signals. In this case, outputs representing the cardiac electrical signals are also output.
110 Citations
34 Claims
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1. A method of outputting heart sounds using an implanted system, comprising:
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generating first data representative of heart sounds in the implanted system using ensemble averaging; receiving the first data from the implanted system; generating control signals using the first data; generating timing comparison control signals indicative of a timing of the control signals; and applying the control signals and the timing comparison control signals to an output device to cause the output device to generate outputs which are representative of the heart sounds and timing information related to the heart sounds. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method of outputting heart sounds using an implanted system, comprising:
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detecting heart sounds using a plurality of first implanted sensors; generating first data representative of the heart sounds for visual display of the heart sounds using band-pass filtering and ensemble averaging; transmitting the first data representative of the heart sounds to an external system; and generating second data representative of the heart sounds for machine detection of the heart sounds using band-pass filtering, rectification, low-pass filtering, and ensemble averaging. - View Dependent Claims (11, 12)
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13. An implantable system, comprising:
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a plurality of sensors configured to detect heart sounds and to generate a plurality of sensed signals representative of the heart sounds; an interface circuit for communicating with an external system; and a control circuit, coupled to the plurality of sensors and the interface circuit, configured to receive the plurality of sensed signals, to generate data representative of the heart sounds, and to transmit the data to the external system via the interface circuit, wherein the control circuit provides for a first processing path including a first band-pass filter, a rectifier, a low-pass filter, and a first ensemble averager to process the plurality of sensed signals for machine detection of the heart sounds and a second processing path including a second band-pass filter and a second ensemble averager to process the plurality of sensed signals for visual display of the heart sounds, wherein the plurality of sensors, interface circuit and control circuit are implantable. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A system, comprising:
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an implantable device including; a first sensor for detecting heart sounds and for generating first sensed signals representative of the heart sounds; a second sensor for detecting cardiac electrical signals and for generating second sensed signals representative of the cardiac electrical signals; a first interface circuit; and a first control circuit that includes a bandpass filter and an ensemble averager, coupled to the sensors and the interface circuit, configured to receive the first and second sensed signals, to generate first data representative of the heart sounds from the first sensed signals by filtering and averaging the signals, to generate second data representative of the cardiac electrical signals from the second sensed signals, and to transmit the first data and the second data via the first interface circuit; and an external device communicatively coupled to the implantable device, the external device including; a second interface circuit; an output device including a display configured to simultaneously display multiple signals; and a second control circuit, coupled to the second interface circuit and the output device, configured to receive the first data and the second data via the interface circuit, detect predetermined type heart sounds from the first data and predetermined type electrical cardiac events from the second data, calculate at least one timing difference between an electrical cardiac event of the predetermined type electrical cardiac events and a heart sound of the predetermined type heart sounds, and generate control signals causing the output device to simultaneously output at least the first sensed signals, the second sensed signals, and the at least one timing difference. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification