DVT DETECTION
First Claim
1. A vasomotor assessment method including the steps of:
- a. obtaining measurements of the volume of blood in a first portion of the living body over time from a transducer situated on the first body portion;
b. within a processor;
(1) extracting from the blood volume measurements;
(a) frequencies representing the heart rate and the variation therein;
(b) frequencies representing vasomotion within the first body portion;
(2) comparing the frequencies representing vasomotion within the first body portion and the variation in the frequencies representing the heart rate;
c. providing an indication of the degree of neuropathy at the first body portion from an output device, the indication being dependent on the comparison.
1 Assignment
0 Petitions
Accused Products
Abstract
A device comprising a light transmission and detection system having transducers (10, 20, 7, 8), control means (5) and output means (7). The transducers are placed at various sites on the body of a patient and the light absorbed and/or reflected at these sites is measured and signals related to vasomotor activity are collected. The output can take the form of a detailed display of the vasomotor signals collected from the transducers (10, 20, 7, 8) to a simple indication of a condition present or absent. For example, the presence of a unilateral DVT can be detected by measuring the dissimilarity between two transducer signals from the soles of a patient'"'"'s feet. The invention can also be used to provide an indication or not of for example, DVT and diabetic peripheral neuropathy.
3 Citations
19 Claims
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1. A vasomotor assessment method including the steps of:
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a. obtaining measurements of the volume of blood in a first portion of the living body over time from a transducer situated on the first body portion; b. within a processor; (1) extracting from the blood volume measurements; (a) frequencies representing the heart rate and the variation therein; (b) frequencies representing vasomotion within the first body portion; (2) comparing the frequencies representing vasomotion within the first body portion and the variation in the frequencies representing the heart rate; c. providing an indication of the degree of neuropathy at the first body portion from an output device, the indication being dependent on the comparison. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A vasomotor assessment method including the steps of:
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a. obtaining a measure of the variation in the heart rate of a living body; b. obtaining a measure of the variation in the volume of blood carried in the blood vessels of a portion of the living body; c. determining the similarity between the heart rate variation and the blood volume variation, the similarity providing a measure of neuropathy at the portion of the body. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A vasomotor assessment method including the steps of:
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a. situating transducers on first and second portions of a living body, the transducers capturing measures of vasomotion therefrom; b. determining within a processor a measure of the similarity between the measures of vasomotion of the first and second body portions; c. providing from an output device an indication of the presence of at least one of neuropathy and thrombosis. - View Dependent Claims (17, 18, 19)
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Specification