Method and sensor for wireless measurement of physiological variables
First Claim
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1. A method for measuring a physiological variable, comprising the steps of:
- (a) inserting a guidewire into a patient'"'"'s body;
(b) transmitting waves to a sensor mounted on said guidewire;
(c) causing said sensor to resonate by said waves, said resonance being a function of a physiological variable; and
(d) receiving resonance waves representing a measurement of the physiological variable.
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Abstract
The sensor and guide wire assembly having a sensor element is inserted into the patient'"'"'s body. Acoustic or electromagnetic waves are them emitted from an external source toward the sensor element. The sensor element receives the incident waves and enters into a resonating state. The characteristics of the resonance correspond to the variable or variables to be measured. A transducer is located externally from the patient'"'"'s body and receives the scattered wave and transmits a resultant signal to an electronic drive and detection unit for signal analysis.
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Citations
6 Claims
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1. A method for measuring a physiological variable, comprising the steps of:
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(a) inserting a guidewire into a patient'"'"'s body;
(b) transmitting waves to a sensor mounted on said guidewire;
(c) causing said sensor to resonate by said waves, said resonance being a function of a physiological variable; and
(d) receiving resonance waves representing a measurement of the physiological variable. - View Dependent Claims (3, 4, 5, 6)
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2. A method for measuring a physiological variable as claimed in claim 2, further comprising the step of analyzing said resonance waves.
Specification