PHYSIOLOGICAL RESPONSE TO POSTURE CHANGE
First Claim
Patent Images
1. A system comprising:
- an implantable medical device, the implantable medical device comprising;
a posture sensing circuit;
a physiological signal sensing circuit to sense a physiological signal, the physiological signal sensing circuit including at least one of a heart rate sensing circuit, a heart rate variability sensing circuit, a heart sound sensing circuit, a respiration rate sensing circuit, and a blood pressure sensing circuit;
a controller circuit, operatively coupled to the physiological signal sensing circuit and the posture sensing circuit, the controller circuit configured to detect a change in the physiological signal that occurs in association with a change in posture, the controller circuit further configured to generate a response as a function of the change in the physiological signal, wherein the change in the physiological signal includes at least one of;
a sensed change in heart rate that is less than a normal subject'"'"'s change in heart rate;
a sensed change in blood pressure that is different from a normal subject'"'"'s change in blood pressure;
a sensed change in heart sound energy that is different from a normal subject'"'"'s change in heart sound energy;
a sensed change in heart rate variability that is different from a normal subject'"'"'s change in heart rate variability; and
a sensed change in respiration rate when the change in posture includes one or more changes among a supine posture, a prone posture, a right lateral decubitus posture, and a left lateral decubitus posture.
1 Assignment
0 Petitions
Accused Products
Abstract
In an embodiment, an implantable medical device includes a controller circuit, a posture sensing circuit, and a physiological sensing circuit. The controller circuit senses a change in a physiological signal as a result of a change in posture, and generates a response as a function of that change. In another embodiment, the controller circuit identifies a heart failure condition as a function of the change in the physiological signal.
-
Citations
25 Claims
-
1. A system comprising:
-
an implantable medical device, the implantable medical device comprising; a posture sensing circuit; a physiological signal sensing circuit to sense a physiological signal, the physiological signal sensing circuit including at least one of a heart rate sensing circuit, a heart rate variability sensing circuit, a heart sound sensing circuit, a respiration rate sensing circuit, and a blood pressure sensing circuit; a controller circuit, operatively coupled to the physiological signal sensing circuit and the posture sensing circuit, the controller circuit configured to detect a change in the physiological signal that occurs in association with a change in posture, the controller circuit further configured to generate a response as a function of the change in the physiological signal, wherein the change in the physiological signal includes at least one of; a sensed change in heart rate that is less than a normal subject'"'"'s change in heart rate; a sensed change in blood pressure that is different from a normal subject'"'"'s change in blood pressure; a sensed change in heart sound energy that is different from a normal subject'"'"'s change in heart sound energy; a sensed change in heart rate variability that is different from a normal subject'"'"'s change in heart rate variability; and a sensed change in respiration rate when the change in posture includes one or more changes among a supine posture, a prone posture, a right lateral decubitus posture, and a left lateral decubitus posture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
-
20. A method comprising:
-
using an implantable medical device to determine a change in a posture of a body; determining a change in a physiological parameter in response to the change in posture, the physiological parameter including one or more of a heart rate, a heart rate variability, a heart sound, a respiration rate, and a blood pressure; and generating a response as a function of the change in the physiological parameter; wherein the change in the physiological parameter comprises at least one of; a sensed change in heart rate that is less than a normal subject'"'"'s change in heart rate; a sensed change in blood pressure that is more than a normal subject'"'"'s change in blood pressure; a sensed change in heart sound energy that is less than a normal subject'"'"'s change in heart sound energy; a sensed change in heart rate variability that is less than a normal subject'"'"'s change in heart rate variability; and a sensed decrease in respiration rate. - View Dependent Claims (21, 22, 23)
-
-
24. A system comprising:
-
an implantable medical device, the implantable medical device comprising; a posture sensing circuit; a physiological signal sensing circuit to sense a physiological signal, the physiological signal sensing circuit including at least one of a heart rate sensing circuit, a heart rate variability sensing circuit, a heart sound sensing circuit, a respiration rate sensing circuit, and a blood pressure sensing circuit; a controller circuit, operatively coupled to the physiological signal sensing circuit and the posture sensing circuit, the controller circuit configured to detect a change in the physiological signal that occurs in association with a change in posture, the controller circuit further configured to identify a health condition as a function of the change in the physiological signal, wherein the heart failure condition is identified by at least one of; a sensed change in heart rate that is less than a normal subject'"'"'s change in heart rate; a sensed change in blood pressure that is different from a normal subject'"'"'s change in blood pressure; a sensed change in heart sound energy that is different from a normal subject'"'"'s change in heart sound energy; a sensed change in heart rate variability that is different from a normal subject'"'"'s change in heart rate variability; and a sensed change in respiration rate when the change in posture includes one or more changes among a supine posture, a prone posture, a right lateral decubitus posture, and a left lateral decubitus posture. - View Dependent Claims (25)
-
Specification