DEVICE AND METHOD FOR MONITORING PHYSIOLOGICAL SIGNALS
First Claim
1. A monitoring device including:
- a. a posture sensor configured to provide a first sensor output signal indicating at least one of;
(1) body posture, and(2) a change in body posture,b. a physiological signal sensor configured to provide a second sensor output signal indicating a value of a physiological parameter;
c. an evaluation unit configured to determine at least one variable characterizing the dynamic behavior of the second sensor output signal in response to a change in body posture indicated by the first sensor output signal.
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Accused Products
Abstract
An implantable device includes a posture sensor and a physiological signal sensor. The posture sensor supplies at least one first sensor output signal indicating body posture and/or changes therein. The physiological signal sensor supplies at least one second sensor output signal indicative of at least one physiological parameter such as blood pressure, intracardiac impedance, stroke volume, heart sounds, heart rate, and/or biochemical measurements (e.g., oxygen concentration). An evaluation unit processes the first and second sensor output signals and determines one or more variables that describe the dynamic behavior of the second sensor output signal in response to a change in body posture indicated by the first sensor output signal.
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Citations
20 Claims
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1. A monitoring device including:
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a. a posture sensor configured to provide a first sensor output signal indicating at least one of; (1) body posture, and (2) a change in body posture, b. a physiological signal sensor configured to provide a second sensor output signal indicating a value of a physiological parameter; c. an evaluation unit configured to determine at least one variable characterizing the dynamic behavior of the second sensor output signal in response to a change in body posture indicated by the first sensor output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A monitoring method including the following steps:
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a. at least substantially continuously measuring a first sensor output signal indicating at least one of; (1) body posture, and (2) a change in body posture, b. detecting a change in body posture indicated by the first sensor output signal; c. measuring a second sensor output signal indicating a value of a physiological parameter; d. calculating at least one variable characterizing the dynamic behavior of the second sensor output signal in response to a change in body posture indicated by the first sensor output signal. - View Dependent Claims (16, 17, 18, 19)
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20. A monitoring device including:
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a. a posture sensor; b. a physiological signal sensor; c. an evaluation unit configured to; (1) receive from the posture sensor a first sensor output signal characterizing body posture; (2) receive from the physiological signal sensor a second sensor output signal characterizing one or more of; (a) blood pressure, (b) blood flow, (c) stroke volume, (d) heart sounds, (e) heart rate, and (f) oxygen concentration, and (b) intracardiac impedance; (3) characterize the behavior of the second sensor output signal in response to a change in body posture indicated by the first sensor output signal.
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Specification