Method and apparatus for the non-invasive monitoring of arterial blood pressure waves
First Claim
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1. A method for the non-invasive monitoring of the arterial blood pressure of a subject, comprising the steps:
- applying a plurality of discretely spaced single-polarity pressure pulses, each having a duration which is a fraction of the duration of the subject'"'"'s blood pressure pulse, to a local, discrete, external point of the subject overlying an artery to effect either a blocking or unblocking condition of the artery;
detecting when said condition in the artery occurs;
and measuring the instant value of each applied pressure pulse when said condition is detected to thereby provide a measurement of the subject'"'"'s blood pressure.
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Abstract
A method and apparatus for the non-invasive monitoring of the arterial blood pressure of a subject are described in which a plurality of discretely-spaced single-polarity pressure pulses, each having a duration which is a fraction of the duration of the subject'"'"'s blood pressure pulse, are applied to a local, discrete, external point of the subject overlying an artery to effect either a blocking or unblocking condition of the artery. When the condition is detected, the instant value of the applied pressure pulse is measured to thereby provide a measurement of the subject'"'"'s blood pressure.
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Citations
31 Claims
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1. A method for the non-invasive monitoring of the arterial blood pressure of a subject, comprising the steps:
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applying a plurality of discretely spaced single-polarity pressure pulses, each having a duration which is a fraction of the duration of the subject'"'"'s blood pressure pulse, to a local, discrete, external point of the subject overlying an artery to effect either a blocking or unblocking condition of the artery; detecting when said condition in the artery occurs; and measuring the instant value of each applied pressure pulse when said condition is detected to thereby provide a measurement of the subject'"'"'s blood pressure. - View Dependent Claims (2, 3, 4, 5)
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6. A method for the non-invasive monitoring of the arterial blood pressure of a subject, comprising the steps:
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applying a plurality of discretely spaced single-polarity pressure pulses, each having a duration which is a fraction of the duration of the subject'"'"'s blood pressure pulse, to a local, discrete, external point of the subject overlying an artery to effect blocking of the artery; detecting when said blocking in the artery occurs; and measuring the instant value of each applied pressure pulse when said blocking is detected to thereby provide a measurement of the subject'"'"'s blood pressure. - View Dependent Claims (7, 8)
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9. A method for the non-invasive monitoring of the arterial blood pressure of a subject, comprising the steps:
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applying a plurality of discretely spaced single-polarity pressure pulses, each having a duration which is a fraction of the duration of the subject'"'"'s blood pressure pulse, to a local, discrete, external point of the subject overlying an artery to effect an unblocking of the artery; detecting when said unblocking in the artery occurs; and measuring the instant value of each applied pressure pulse when said unblocking is detected to thereby provide a measurement of the subject'"'"'s blood pressure. - View Dependent Claims (10, 11)
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12. Apparatus for the non-invasive monitoring of the arterial blood pressure of a subject, comprising:
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pressure applying means for applying a plurality of discretely spaced single-polarity pressure pulses, each having a duration which is a fraction of the duration of the subject'"'"'s blood pressure pulse, to a local, discrete, external point of the subject overlying an artery to effect either a blocking or unblocking condition of the artery; detector means for detecting when said condition in the artery occurs; and measuring means for measuring the instant value of each applied pressure pulse when said condition is detected to thereby provide a measurement of said subject'"'"'s blood pressure. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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26. Apparatus for the non-invasive monitoring of the arterial blood pressure of a subject, comprising:
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pressure applying means for applying a plurality of discretely spaced single-polarity pressure pulses, each having a duration which is a fraction of the duration of the subject'"'"'s blood pressure pulse, to a local, discrete, external point of the subject overlying an artery to effect blocking of the artery; detector means for detecting when said blocking in the artery occurs; and measuring means for measuring the instant value of each applied pressure pulse when said blocking is detected to thereby provide a measurement of said subject'"'"'s blood pressure. - View Dependent Claims (27, 28)
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29. Apparatus for the non-invasive monitoring of the arterial blood pressure of a subject, comprising:
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pressure applying means for applying a plurality of discretely spaced single-polarity pressure pulses, each having a duration which is a fraction of the duration of the subject'"'"'s blood pressure pulse, to a local, discrete, external point of the subject overlying an artery to effect unblocking of the artery; detector means for detecting when said unblocking of the artery occurs; and measuring means for measuring the instant value of each applied pressure pulse when said unblocking is detected to thereby provide a measurement of said subject'"'"'s blood pressure. - View Dependent Claims (30, 31)
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Specification