Mass attribute detection through phrenic stimulation
First Claim
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1. A system comprising:
- an accelerometer configured to sense an acceleration signal indicative of a response to an electrical stimulation of a phrenic nerve of a patient;
a processing circuit in communication with the accelerometer, the processing circuit configured to;
receive information from the acceleration signal;
determine a mass attribute of the patient using the received information from the acceleration signal, the determined mass attribute comprising at least one of a mass of an upper body of the patient, a mass of a thorax of the patient, a body mass index (BMI) value, mass composition information, and a systemic mass value of the entire patient; and
provide an indication of the mass attribute to a user or process.
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Abstract
According to certain examples, an implanted medical device is used to determine a mass attribute of a patient. The patient'"'"'s phrenic nerve is stimulated, and the diaphragmatic response is measured by an accelerometer. The measured response is analyzed in certain embodiments to determine a mass attribute. This information can help in the diagnosis of, and efficient response to, edema.
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Citations
19 Claims
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1. A system comprising:
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an accelerometer configured to sense an acceleration signal indicative of a response to an electrical stimulation of a phrenic nerve of a patient; a processing circuit in communication with the accelerometer, the processing circuit configured to; receive information from the acceleration signal; determine a mass attribute of the patient using the received information from the acceleration signal, the determined mass attribute comprising at least one of a mass of an upper body of the patient, a mass of a thorax of the patient, a body mass index (BMI) value, mass composition information, and a systemic mass value of the entire patient; and provide an indication of the mass attribute to a user or process. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method performed by a medical device comprising:
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electrically stimulating a phrenic nerve of a patient; receiving an acceleration signal from an accelerometer, the acceleration signal indicative of a response in the patient to the electrical stimulation of the phrenic nerve; determining a mass attribute of the patient based at least in part on the received acceleration signal;
the mass attribute comprising at least one of a mass of an upper body of the patient, a mass of a thorax of the patient, a body mass index (BMI) value, mass composition information, and a systemic mass value of the entire patient; andcommunicating an indication of the mass attribute to a user or process. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A system comprising:
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means for electrically stimulating a phrenic nerve of a patient; means for receiving an acceleration from an accelerometer the acceleration signal indicative of a response in the patient to the electrical stimulation of the phrenic nerve; means for determining a mass attribute of the patient based at least in part on the received signal, the mass attribute comprising at least one of a mass of an upper body of the patient, a mass of a thorax of the patient, a body mass index (BMI) value, mass composition information, and a systemic mass value of the entire patient; and means for communicating an indication of the mass attribute to a user or process.
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Specification