Optical device for non-invasive measurement of blood related signals utilizing a finger holder
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United States of America Patent
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Apr 10, 2001
Grant Date -
N/A
app pub date -
Sep 28, 1999
filing date -
Sep 28, 1999
priority date (Note) -
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Abstract
A finger holder for attaching to the patient's finger and an optical measurement device utilizing the finger holder for performing non-invasive measurements of blood-related signals are presented. The finger holder comprises a measuring unit located at a first location of the finger and a pressurizing assembly capable of applying desired over-systolic pressure to a second location on the patient's finger upstream of the first location with respect to a normal blood flow direction. The measuring unit is supported on a clip member that secures the fingertip between the clip's legs. A substantially rigid connector connects the clip member and the pressurizing assembly, wherein the connector engages the finger along its middle phalanx and proximal intephalangeal joint, thereby preventing it from folding during the measurements.
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