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US 8,801,636 B2Granted
Method and apparatus for determining wellness based on decubitus posture
AssigneeCardiac Pacemakers, Inc.
InventorsAaron Lewicke, John D. Hatlestad, Abhilash Patangay
Life of this patent
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Abstract
An example method includes monitoring a first posture including a first lateral decubitus posture (LDP), recording a first LDP record based on the first LDP, computing a first posture trend based on the first LDP record and determining and providing a wellness indication based on the first posture trend.
Claims29
A method of recording posture with an implantable device, the method comprising:
- monitoring a right posture signal from an implantable posture sensor in a subject, the right posture signal including a right lateral decubitus posture (LDP) signal;
- recording a right LDP record by recording the right LDP signal with a posture memory;
- monitoring a left posture signal from the implantable posture sensor, the left posture including a left LDP signal;
- recording a left LDP record by recording the left LDP signal with the posture memory;
- computing a first posture trend of the subject by periodically comparing the right LDP record and the left LDP record;
- comparing the first posture trend to a specified posture-based therapy for heart failure to determine whether the first posture trend is indicative of a change in wellness and automatically providing:
- a wellness indication of the change in wellness;
- and
- generating at least one alert indicative of non-compliance of the first posture trend with the specified posture-based therapy, wherein the at least one alert is one of a plurality of escalating alerts provided to the subject to promote compliance with the specified posture-based therapy, wherein the plurality of alerts are of different types that escalate in difficulty to ignore according to a degree of non-compliance with the specified posture-based therapy.
6 more elements
An apparatus, comprising:
- an implantable medical device configured to be implanted in a subject, the implantable medical device comprising:
- an implantable posture sensor configured to be implanted in a subject to produce a left posture indication including a left lateral decubitus posture (LDP) and a right posture indication including a right LDP;
- a posture memory circuit coupled to the implantable posture sensor, the posture memory circuit configured to store a left LDP record of time spent in the left LDP using the left posture indication and a right LDP record of further time spent in the right LDP using the right posture indication;
- a posture trend circuit coupled to the posture memory circuit, the posture trend circuit configured to produce a posture trend of the subject over multiple periods of time using a signal from a comparator circuit, the comparator circuit to compare the left LDP record and the right LDP record;
- a wellness indicator circuit coupled to the posture trend circuit, the wellness indicator circuit configured to compare the first posture trend to a specified posture-based therapy for heart failure to determine whether the first posture trend is indicative of a change in wellness and automatically compute and provide a wellness indication of the change in wellness;
- and
- an alert circuit configured to generate at least one alert indicative of non-compliance of the first posture trend with the specified posture-based therapy, wherein the at least one alert is one of a plurality of escalating alerts provided to the subject to promote compliance with the specified posture-based therapy, wherein the plurality of alerts are of different types that escalate in difficulty to ignore according to a degree of non-compliance with the specified posture-based therapy.
4 more elements
A system for monitoring a patient with an implantable device, the system comprising:
- an implantable posture sensor configured to be implanted in the patient to produce a left posture signal including a left lateral decubitus posture (LDP) and a right posture signal including a right LDP;
- means for recording a record of the left posture signal and a further record of the right posture signal, including recording a time spent in the right LDP and a further time spent in a left LDP;
- means for computing a posture trend of the patient over multiple periods of time by comparing the record of the left posture signal and the further record of the right posture signal, including, for each time period, comparing the time spent in the right LDP to the record of the time spent in the left LDP;
- means for comparing the first posture trend to a specified posture-based therapy for heart failure to determine whether the first posture trend is indicative of a change in wellness and for determining and automatically providing a wellness indication based on the change in wellness;
- and
- an alert circuit configured to generate at least one alert indicative of non-compliance of the first posture trend with the specified posture-based therapy, wherein the at least one alert is one of a plurality of escalating alerts provided to the subject to promote compliance with the specified posture-based therapy, wherein the plurality of alerts are of different types that escalate in difficulty to ignore according to a degree of non-compliance with the specified posture-based therapy.
3 more elements
Dependencies are inferred from the claim text.