Method for Using a Wireless Pressure Sensor to Monitor Pressure Inside the Human Heart
First Claim
1. A method for measuring pressure within a heart, comprising the steps of:
- providing a passive wireless pressure sensor having a characteristic impedance and a deflectable surface, the characteristic impedance changing in response to deflection of the deflectable surface;
inserting the sensor to a location within the body of a patient at which the sensor can detect pressure within the heart;
affixing the sensor relative to the heart;
interrogating the sensor with an electromagnetic field;
receiving a signal from the sensor corresponding to a sensed pressure; and
leaving the sensor in situ so that future pressure measurements can be made.
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Abstract
A method for measuring pressure within a heart includes the steps of: (1) providing a passive wireless pressure sensor having a characteristic impedance and a deflectable surface, the characteristic impedance changing in response to deflection of the deflectable surface; (2) inserting the sensor to a location within the body of a patient at which the sensor can detect pressure within the heart; (3) affixing the sensor relative to the heart; (4) interrogating the sensor with an electromagnetic field; (5) receiving a signal from the sensor corresponding to a sensed pressure; and (6) leaving the sensor in situ so that future pressure measurements can be made.
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Citations
7 Claims
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1. A method for measuring pressure within a heart, comprising the steps of:
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providing a passive wireless pressure sensor having a characteristic impedance and a deflectable surface, the characteristic impedance changing in response to deflection of the deflectable surface;
inserting the sensor to a location within the body of a patient at which the sensor can detect pressure within the heart;
affixing the sensor relative to the heart;
interrogating the sensor with an electromagnetic field;
receiving a signal from the sensor corresponding to a sensed pressure; and
leaving the sensor in situ so that future pressure measurements can be made. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification