POSTURE STATE CLASSIFICATION FOR A MEDICAL DEVICE
First Claim
1. An implantable medical device, comprising:
- a sensor to provide signals indicative of a detected posture vector of a patient;
a memory to store one or more defined posture vectors, each defined posture vector being associated with a tolerance describing a relationship with the defined posture vector; and
a processor to determine a respective similarity between the detected posture vector and each of one or more of the defined posture vectors and to classify a posture of the patient based on whether any similarity has a relationship to the respective defined posture vector that is described by the associated tolerance.
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Accused Products
Abstract
One embodiment relates to a medical device including a sensor to provide signals indicative of a detected posture state of a patient. A memory stores one or more defined vectors, each defined vector being associated with a tolerance describing a relationship with the defined vector. A processor determines a respective similarity between the detected vector and each of one or more of the defined vectors and classifies a posture state of the patient based on whether any similarity has a relationship to the respective defined vector that is described by the associated tolerance. In one embodiment, the similarity is determined without regard to a coordinate system of the patient. Another embodiment relates to determining the similarity based on at least one of an inner product, a length of the defined posture vector and a length of the detected vector.
186 Citations
58 Claims
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1. An implantable medical device, comprising:
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a sensor to provide signals indicative of a detected posture vector of a patient; a memory to store one or more defined posture vectors, each defined posture vector being associated with a tolerance describing a relationship with the defined posture vector; and a processor to determine a respective similarity between the detected posture vector and each of one or more of the defined posture vectors and to classify a posture of the patient based on whether any similarity has a relationship to the respective defined posture vector that is described by the associated tolerance. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method for use with a medical system having a sensor, comprising:
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obtaining a defined vector indicative of a defined posture state; obtaining from the sensor a detected vector that is indicative of a posture state of a patient; determining a similarity between the defined vector and the detected vector, the similarity being determined without deriving an angle; classifying the posture state of the patient based on the similarity; and initiating via the medical system an action related to care provided to the patient, the action being based on the classification of the posture state of the patient. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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43. A medical system, comprising:
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a sensor to provide a detected vector indicative of a posture state of a patient; a storage device to store posture state definitions, one or more of which are associated with defined vectors; a processor to derive a similarity between the detected vector and each of one or more of the defined vectors, wherein deriving the similarity does not require derivation of angles, and to classify the posture state of the patient based on the derived similarities; and a response module to generate a response based on the posture state classification. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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58. A storage medium for storing instructions to cause a digital processor to:
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obtain a defined vector indicative of a defined posture state; obtain from the sensor a detected vector that is indicative of a posture state of a patient; determine a similarity between the defined vector and the detected vector, the similarity being determined without deriving an angle; classify the posture state of the patient based on the similarity; and initiate an action related to at least one of caring for, collecting data describing, and diagnosing, the patient.
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Specification