Method and apparatus for physiological monitoring
First Claim
1. A method of representing or displaying blood pressure of a subject aurally, comprising the steps ofreceiving an electronic signal representative of a blood pressure measurement, andsynthesising a non-vocal audio output from the signal using an electronic signal processor,wherein the audio output is an earcon and both a duration and a pitch of the earcon are dependent on the blood pressure measurement,wherein the pitch of the earcon is dependent on the blood pressure measurement according to a stepped scale, andwherein the duration of the earcon is dependent on the blood pressure measurement according to a stepped scale, andwherein the blood pressure measurement is one of arterial systolic, diastolic and mean blood pressure, or one of pulmonary arterial systolic, diastolic and mean blood pressure measurements, and the earcon comprises a tone or sequence of tones.
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Abstract
Blood pressure measurements are represented aurally. An audio synthesizer (15) receives a signal representative of blood pressure information, and synthesizes an audio output from the signal. Both the duration and pitch of the synthesized audio output are dependent on the value of the blood pressure information, according to a linear scale or a non-linear scale such as stepped scale. The blood pressure information includes at least one of arterial or pulmonary arterial systolic, diastolic and mean blood pressure measurements, and the audio output includes an earcon comprising a tone or sequence of tones, the tone(s) being representative of a respective type of blood pressure measurement. The earcon may also include one or more static or dynamic beacons.
22 Citations
12 Claims
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1. A method of representing or displaying blood pressure of a subject aurally, comprising the steps of
receiving an electronic signal representative of a blood pressure measurement, and synthesising a non-vocal audio output from the signal using an electronic signal processor, wherein the audio output is an earcon and both a duration and a pitch of the earcon are dependent on the blood pressure measurement, wherein the pitch of the earcon is dependent on the blood pressure measurement according to a stepped scale, and wherein the duration of the earcon is dependent on the blood pressure measurement according to a stepped scale, and wherein the blood pressure measurement is one of arterial systolic, diastolic and mean blood pressure, or one of pulmonary arterial systolic, diastolic and mean blood pressure measurements, and the earcon comprises a tone or sequence of tones.
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9. An apparatus for representing or displaying blood pressure of a subject aurally, comprising
an audio synthesizer adapted to receive a signal representative of blood pressure measurement and to synthesize an audio output from the signal, wherein the audio synthesizer operatively produces a non-vocal audio output in the form of an earcon and both a duration and a pitch of the earcon are dependent on the value of the blood pressure measurement, wherein the pitch of the earcon is dependent on the blood pressure measurement according to a stepped scale, and wherein the duration of the earcon is dependent on the blood pressure measurement according to a stepped scale, and wherein the blood pressure measurement is one of arterial systolic, diastolic and mean blood pressure, or one of pulmonary arterial systolic, diastolic and mean blood pressure measurements, and the earcon comprises a tone or sequence of tones.
Specification