Surgery – Truss – Pad
Patent
1992-08-13
1994-02-01
Sykes, Angela D.
Surgery
Truss
Pad
128666, 356 41, A61B 500
Patent
active
052824675
ABSTRACT:
A non-invasive method for detecting deep venous thrombosis in a human body wherein changes are effected in the amount of deoxyhemoglobin in the body limb by trapping blood in the venous system for a determinate time period and then releasing the trapped blood in the venous system. During the period that the changes in the amount of deoxyhemoglobin are effected, first and second light sources emit light of two selected wavelengths which penetrate into the deep venous system of the body limb so that the reflectance contributions can be used to measure changes in the flow and amount of deoxyhemoglobin and to thereby detect the presence or absence of deep venous thrombosis.
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Comfort Benjamin J.
Hampson Neil B.
Piantadosi Claude A.
Duke University
Jenkins Richard E.
Sykes Angela D.
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