Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Patent
1997-02-07
1999-04-06
Lateef, Marvin M.
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
600310, 356244, 356247, 356 39, 356372, A61B 500
Patent
active
058910298
DESCRIPTION:
BRIEF SUMMARY
FIELD OF TECHNOLOGY
The present invention relates to a living body positioning method for positioning a target part of a living body during noninvasive measurement of the concentration of a particular component in the living body by the use of a transmitted or reflected spectrum that is obtained by illuminating the target part of the living body, a positioning device for the biological information measurement, and a biological information measuring apparatus.
BACKGROUND ART
In carrying out this kind of measurement, in order to attain consistent conditions for measurement of the spectrum of light transmitted through or reflected from the target part of the living body, it is generally necessary to perform measurement by positioning the target part of the living body at a predetermined position relative to a light projecting member and/or a light receiving element for receiving the transmitted or reflected light.
Hitherto, for biological information measurement, the use has been made of a clip-type probe for biological information measurement of a biological information measuring probe secured to the target part of the living body by the use of a double-adhesive tape (such as disclosed in, for example, the Japanese Laid-open Patent Publication No. 6-14906). During the biological information measurement using the clip-type biological information measuring probe, the target part of the living body is sandwiched by a spring mechanism between one clip member embedded with a light emitting element, and another clip member embedded with a light receiving element, such that light emitted from the light emitting element and transmitted through the target part of the living body is received by the light receiving element to accomplish biological information measurement. On the other hand, during the biological information measurement using the double-sided adhesive tape, a light emitting element and a light receiving element are secured in position by the use of the double-sided adhesive tape so as to confront with each other with the target part of the living body intervening therebetween so that, as is the case with the clip-type system, light emitted from the light emitting element and transmitted through the target part of the living body can be received by the light receiving element to accomplish the biological information measurement.
DISCLOSURE OF THE INVENTION
In, the biological information measurement in which the clip-type system or the double-sided adhesive tape is utilized, conditions for measurement at the target part tend to fluctuate when, once the biological information measuring probe has been removed from the target part of the living body, the biological information measuring probe is again fitted to the living body for re-measurement. Change in measurement data resulting from fluctuation of the measuring conditions are shown in FIGS. 11 and 12.
Measurement data shown in FIG. 11 were obtained as a result of the following measurement. was measured by illuminating an initially selected target part of the palm of the hand of a subject, which is a part of the living body, with light, and receiving the light which has been reflected therefrom. target position after the target position, illuminated by the light, has been displaced 1 mm from an initially selected position without changing the angle of illumination target position after the target position, illuminated by the light, has been displaced a further 1 mm, conveniently 2 mm from the initially selected position without changing the angle of illumination. resetting the position, illuminated by the light, to the initially selected position without changing the angle of, illumination when the subject having been administrated with an aqueous solution for sugar burden test, such as sold under "TRELAN 75" available from Shimizu Seiyaku Kabushiki Kaisha showed change of the subject's blood sugar reading by 15mg/dl. the energy spectrum (A) measured at step (1) and the quotient was subsequently multiplied by 100 to give (E)={(A)/(A)}.times.100, (
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Matsuoka Koji
Mitsumura Yoshio
Uenoyama Harumi
Xu Kexin
Kurashiki Boseki Kabushiki Kaisha
Kyoto Dai-ichi Kagaku Co. Ltd.
Lateef Marvin M.
Shaw Shawna J.
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