IMPLANTABLE PRESSURE SENSOR WITH AUTOMATIC MEASUREMENT AND STORAGE CAPABILITIES
First Claim
1. A method carried out by an implantable medical device located within a patient'"'"'s body, the method comprising:
- activating the implantable medical device from a low-power state to an awake state at a scheduled time event programmed within the implantable medical device;
sensing one or more pressure measurements within a pulmonary artery;
computing an average pressure measurement of the pulmonary artery pressure over one or more cardiac cycles based on the one or more sensed pressure measurements;
storing the average pressure measurement within a memory of the implantable medical device;
transmitting the average pressure measurement to a remote device in wireless communication with the implantable medical device; and
returning the implantable medical device to the low-power state.
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Accused Products
Abstract
Methods for activating implantable medical devices within a patient'"'"'s body are disclosed. An illustrative method includes activating an implantable medical device from a low-power state to an awake state in response to a scheduled time event, sensing one or more pressure measurements within the body, computing an average pressure measurement based on the sensed pressure measurements, storing the average pressure measurement within a memory of the implantable medical device, and then returning the device to the low-power state. A triggering event such as the detection of patient activity or motion can also be used to activate the implantable medical device between the low-power state and an active state.
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Citations
20 Claims
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1. A method carried out by an implantable medical device located within a patient'"'"'s body, the method comprising:
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activating the implantable medical device from a low-power state to an awake state at a scheduled time event programmed within the implantable medical device; sensing one or more pressure measurements within a pulmonary artery; computing an average pressure measurement of the pulmonary artery pressure over one or more cardiac cycles based on the one or more sensed pressure measurements; storing the average pressure measurement within a memory of the implantable medical device; transmitting the average pressure measurement to a remote device in wireless communication with the implantable medical device; and returning the implantable medical device to the low-power state. - View Dependent Claims (2, 3)
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4. A method carried out by an implantable medical device located within a patient'"'"'s body, the method comprising:
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activating the implantable medical device from a low-power state to an awake state at a scheduled time event programmed within the implantable medical device; sensing one or more pressure measurements within the body; computing an average pressure measurement based at least in part on the one or more sensed pressure measurements; storing the average pressure measurement and a timing marker associated with the average pressure measurement within a memory of the implantable medical device; and returning the implantable medical device to the low-power state. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A remote sensor for sensing pressure within a patient'"'"'s body, comprising:
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a power supply adapted to supply power to one or more components of the remote sensor; a memory unit; communication circuitry configured to transmit and receive information; pressure sensing circuitry configured to sense pressure measurements within the body; timing circuitry configured to activate the sensing circuitry from a low-power state to an active state at a scheduled time period based on one or more timing parameters stored in the memory unit; and a processor adapted to compute an average pressure measurement based on pressure measurements sensed by the pressure sensing circuitry.
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Specification