Device and method for non-invasive optical measurements
First Claim
1. An optical measurement device for use in non-invasive measurements on a patient'"'"'s body, the device comprising:
- an illumination assembly configured and operable to generate illuminating light of a predetermined wavelength range;
a detection assembly comprising a first detector unit for detecting a first light signal transmitted through an illuminated body portion and generating first measured data indicative of the detected transmitted light, and a second detector unit for detecting a second light signal reflected from the illuminated body portion and generating second measured data indicative of the detected reflected light; and
a light directing assembly comprising a light diffuser for scattering back light incident thereto, to thereby direct the illuminating light or the light coming from the body portion back towards the body portion, thereby increasing amount of light reaching a region of interest inside the body portion and thus maximizing homogeneity of the first and second detected light signals.
1 Assignment
0 Petitions
Accused Products
Abstract
An optical measurement device and method are presented for use in non-invasive measurements on a patient'"'"'s body. The device comprises an illumination assembly configured and operable to generate illuminating light of a predetermined wavelength range; a detection assembly; and a light directing assembly. The detection assembly comprises a first detector unit for detecting a first light signal transmitted through an illuminated body portion and generating first measured data indicative of the detected transmitted light, and a second detector unit for detecting a second light signal reflected from the illuminated body portion and generating second measured data indicative of the detected reflected light. The light directing assembly comprises a light diffuser for scattering back light incident thereto, to thereby direct the illuminating light or the light coming from the body portion back towards the body portion. This technique provides for increasing the amount of light reaching a region of interest inside the body portion and maximizing homogeneity of the first and second detected light signals.
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Citations
46 Claims
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1. An optical measurement device for use in non-invasive measurements on a patient'"'"'s body, the device comprising:
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an illumination assembly configured and operable to generate illuminating light of a predetermined wavelength range;
a detection assembly comprising a first detector unit for detecting a first light signal transmitted through an illuminated body portion and generating first measured data indicative of the detected transmitted light, and a second detector unit for detecting a second light signal reflected from the illuminated body portion and generating second measured data indicative of the detected reflected light; and
a light directing assembly comprising a light diffuser for scattering back light incident thereto, to thereby direct the illuminating light or the light coming from the body portion back towards the body portion, thereby increasing amount of light reaching a region of interest inside the body portion and thus maximizing homogeneity of the first and second detected light signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. An optical measurement device for non-invasive measurements on a patient'"'"'s finger, the device comprising:
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a ring-like housing for enclosing a portion of the finger therein;
an illumination assembly mounted on said housing, the illumination assembly being configured and operable to direct light towards a portion of the finger under measurements;
a detection assembly mounted on said housing, the detection assembly comprising a first detector unit accommodated substantially opposite the illumination assembly for detecting a first light signal transmitted through the finger portion and generating first measured data indicative of the detected transmitted light, and a second detector unit accommodated for detecting a second light signal reflected from the finger portion and generating second measured data indicative of the detected reflected light;
a light diffuser accommodated for receiving light reflected from the finger portion and directing the received light back towards the finger portion, thereby increasing amount of light reaching a region of interest inside the finger portion and thus maximizing homogeneity of the first and second detected light signals.
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40. A method for use in non-invasive optical measurements on a patient'"'"'s body utilizing illumination of a region of interest inside the body portion and detection of light response of the region of interest, the method comprising:
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collecting light coming from the body portion and directing at least a part of the collected light back to the body portion;
detecting a first light signal transmitted through the body portion and generating first measured data indicative of the detected transmitted light, and detecting a second light signal reflected from the body portion and generating second measured data indicative of the detected reflected light;
the method providing for increasing amount of light reaching the region of interest inside the body portion, and for maximizing homogeneity of the first and second detected light signals. - View Dependent Claims (41, 42, 43, 44, 45, 46)
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Specification