Barometric pressure correction based on remote sources of information
First Claim
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1. A system for determining gauge pressure within a patient'"'"'s body, comprising:
- an implantable medical device including at least one sensor configured to sense absolute pressure at a location within the body;
an acoustic transducer operable to wirelessly transmit absolute pressure information to at least one device located inside or outside of the body, the absolute pressure information including an absolute pressure value corresponding to the absolute pressure sensed by the implantable medical device;
a switch coupled between the acoustic transducer and an energy storage device, the energy storage device adapted to supply operating current to an electrical circuit within the implantable medical device upon the acoustic transducer receiving an acoustic wake-up signal from an acoustic energy source, the switch configured to actuate the implantable medical device between an inactive state, in which the operating current is limited from flowing from the energy storage device to the electrical circuit, and an active state that allows operating current to flow from the energy storage device to the electrical circuit; and
a remote device operable to;
receive the absolute pressure value; and
calculate a gauge pressure value based at least in part on the absolute pressure value.
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Abstract
The invention includes systems and methods for converting absolute pressure data acquired in anatomical environments to gauge pressure data using an implant configured to monitor pressure. The implant is configured to communicate with an external controller, which is configured to communicate with a remote microprocessor that includes real-time barometric pressure data for one or more geographic locations.
510 Citations
18 Claims
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1. A system for determining gauge pressure within a patient'"'"'s body, comprising:
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an implantable medical device including at least one sensor configured to sense absolute pressure at a location within the body; an acoustic transducer operable to wirelessly transmit absolute pressure information to at least one device located inside or outside of the body, the absolute pressure information including an absolute pressure value corresponding to the absolute pressure sensed by the implantable medical device; a switch coupled between the acoustic transducer and an energy storage device, the energy storage device adapted to supply operating current to an electrical circuit within the implantable medical device upon the acoustic transducer receiving an acoustic wake-up signal from an acoustic energy source, the switch configured to actuate the implantable medical device between an inactive state, in which the operating current is limited from flowing from the energy storage device to the electrical circuit, and an active state that allows operating current to flow from the energy storage device to the electrical circuit; and a remote device operable to; receive the absolute pressure value; and calculate a gauge pressure value based at least in part on the absolute pressure value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for measuring gauge pressure in a patient'"'"'s body, comprising:
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transmitting an acoustic wake-up signal to an implantable medical device located within the body, the implantable medical device including an acoustic transducer and a switch coupled between the acoustic transducer and an energy storage device, the energy storage device adapted to supply operating current to an electrical circuit within the implantable medical device, the acoustic wake-up signal configured to activate the switch to actuate the implantable medical device from an inactive state, in which operating current is limited from flowing from the energy storage device to the electrical circuit, to an active state that allows operating current to flow from the energy storage device to the electrical circuit; sensing an absolute pressure value within the body and transmitting a wireless signal containing the sensed absolute pressure value to a remote device; and calculating a gauge pressure value based at least in part on the sensed absolute pressure value. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification