System or Method for Assessing a Subject's Peripheral Blood Circulation
First Claim
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1. A system for assessing blood circulation in a subject'"'"'s limb, comprising:
- detection means for detecting a signal dependent upon the arterial blood volume in a limb of the subject when the subject is in a first posture and also when the subject is in a second posture, different to the first posture; and
processing means for calculating a quantitative indicator that is dependent upon the ratio of the signal for the first posture to the signal for the second posture.
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Abstract
A system for assessing blood circulation in a subject'"'"'s limb, comprising: including detection means for detecting a signal dependent upon the arterial blood volume in a limb of the subject when the subject is in a first posture and also when the subject is in a second posture, different to the first posture; and processing means for calculating a quantitative indicator that is dependent upon the ratio of the signal for the first posture to the signal for the second posture.
45 Citations
42 Claims
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1. A system for assessing blood circulation in a subject'"'"'s limb, comprising:
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detection means for detecting a signal dependent upon the arterial blood volume in a limb of the subject when the subject is in a first posture and also when the subject is in a second posture, different to the first posture; and
processing means for calculating a quantitative indicator that is dependent upon the ratio of the signal for the first posture to the signal for the second posture. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for assessing blood circulation in a subject'"'"'s limb comprising:
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detecting a signal dependent upon the arterial blood volume in a limb of the subject when the subject is in a first posture;
detecting the signal dependent upon the arterial blood volume in the limb of the subject when the subject is in a second posture, different to the first posture; and
calculating a quantitative indicator that is dependent upon the ratio of the signal for the first posture to the signal for the second posture. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A system for assessing a subject'"'"'s peripheral blood circulation, comprising:
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measurement means for measuring a parameter dependent upon the blood volume in a limb of the subject when the subject is in a first posture and also when the subject is in a second posture, different to the first posture;
means for separating the parameter into a first component and a second component; and
processing means for calculating a quantitative indicator wherein the calculation takes as inputs the first component of the parameter for the first posture and the first component of the parameter for the second posture. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for assessing a subject'"'"'s peripheral blood circulation, comprising:
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measuring a parameter dependent upon the blood volume in a limb of the subject when the subject is in a first posture and also when the subject is in a second posture, different to the first posture;
separating the parameter into a first component and a second component; and
processing means for calculating a quantitative indicator wherein the calculation takes as inputs the first component of the parameter for the first posture and the first component of the parameter for the second posture. - View Dependent Claims (28, 29)
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30. A system for assessing blood circulation in a subject'"'"'s limb, comprising:
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measurement means operable to measure a parameter indicative of the blood volume of the subject'"'"'s limb when the subject is in a first posture and to measure;
the parameter when the subject is in a second posture and comprising means for isolating a variable value of the measured parameter.processing means for determining a quantitative indicator that is dependent upon the ratio of the variable value of the parameter measured for the first posture to the variable value of the parameter measured for the second posture. - View Dependent Claims (31, 32, 33, 34)
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35. A system for assessing blood circulation in a subject'"'"'s limb, comprising:
- measuring a parameter indicative of the blood volume of the subject'"'"'s limb when the subject is in a first posture and isolating a variable value of the parameter measured for the first posture;
measuring the parameter indicative of the blood volume of the subject'"'"'s limb when the subject is in a second posture isolating a time-variable value of the parameter measured for the second posture;
determining a quantitative indictor that is dependent upon the ratio of the variable value of the parameter measured for the first posture to the variable value of the parameter measured for the second posture.
- measuring a parameter indicative of the blood volume of the subject'"'"'s limb when the subject is in a first posture and isolating a variable value of the parameter measured for the first posture;
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Specification