MULTI-SENSOR STRATEGY FOR HEART FAILURE PATIENT MANAGEMENT
First Claim
1. An apparatus comprising:
- a plurality of sensors, wherein each sensor is configured to provide a sensor signal that includes physiological information, and wherein at least one sensor is implantable;
a processor, communicatively coupled to the sensors, wherein the processor includes;
a physiological change event detection module configured to detect a physiological change event from a sensor signal and to produce an indication of occurrence of one or more detected physiological change events; and
a heart failure (HF) detection module configured to;
determine, using a first rule, whether the detected physiological change event is indicative of a change in HF status of a subject;
determine whether to override the first rule HF determination using a second rule; and
declare whether the change in HF status occurred according to the first and second rules.
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Accused Products
Abstract
An apparatus comprises plurality of sensors and a processor. Each sensor provides a sensor signal that includes physiological information and at least one sensor is implantable. The processor includes a physiological change event detection module that detects a physiological change event from a sensor signal and produces an indication of occurrence of one or more detected physiological change events, and a heart failure (HF) detection module. The HF detection module determines, using a first rule, whether the detected physiological change event is indicative of a change in HF status of a subject, determines whether to override the first rule HF determination using a second rules, and declares whether the change in HF status occurred according to the first and second rules.
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Citations
24 Claims
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1. An apparatus comprising:
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a plurality of sensors, wherein each sensor is configured to provide a sensor signal that includes physiological information, and wherein at least one sensor is implantable; a processor, communicatively coupled to the sensors, wherein the processor includes; a physiological change event detection module configured to detect a physiological change event from a sensor signal and to produce an indication of occurrence of one or more detected physiological change events; and a heart failure (HF) detection module configured to; determine, using a first rule, whether the detected physiological change event is indicative of a change in HF status of a subject; determine whether to override the first rule HF determination using a second rule; and declare whether the change in HF status occurred according to the first and second rules. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a plurality of sensors, each sensor configured to provide a sensor signal, wherein the sensor signal includes physiological information; an implantable device comprising; at least one of the sensors; a sampling circuit, communicatively coupled to the implantable sensors, configured to provide a sampled sensor signal; and a first communication circuit, communicatively coupled to the sampling circuit, configured to communicate the sampled sensor signal to a second device; and an external device comprising; a second communication circuit configured to communicate with the implantable device; and a processor, communicatively coupled to the second communication circuit, wherein the processor includes; a physiological change event detection module configured to; detect a physiological change event from a sensor signal including at least one sampled sensor signal communicated from the implantable device; and produce an indication of occurrence of one or more physiological change events; and a heart failure (HF) detection module configured to; determine whether the detected physiological change events are indicative of a change in HF status using a first rule; determine whether to override the first rule HF determination using a second rule; and declare whether the change in HF status occurred according to the first and second rules. - View Dependent Claims (12, 13)
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14. A method comprising:
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sensing a plurality of physiologic sensor signals using a medical device, wherein each sensor signal includes physiological information, and wherein at least one sensor is implantable; detecting which physiological change events, if any, of a set of specified physiological change events occurred using the sensor signals; determining whether the detected physiological change events are indicative of a change in heart failure (HF) status of a subject using a first rule; determining whether to override the first rule HF determination using a second rule; and declaring whether the change in HF status occurred according to the first and second rules. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification