Noninvasive measurements in a human body
First Claim
1. Apparatus comprising a measurement system adapted to perform non-invasive measurements on a subject'"'"'s body, the measurement system comprising:
- a measurement unit comprising;
an acoustic unit configured to direct acoustic radiation toward a region of interest within the subject'"'"'s body; and
an optical unit comprising;
an illumination assembly that comprises at least one light emitter, and at least one first light guiding unit and at least one second light guiding unit,the at least one light emitter, the at least one first light guiding unit and the at least one second light guiding unit being optically coupled to each other via a first optical coupler; and
a light detection assembly that comprises at least one light detector, the at least one second light guiding unit, and at least one third light guiding unit,the at least one light detector, the at least one second light guiding unit, and the at least one third light guiding unit being optically coupled to each other via a second optical coupler,the measurement unit being configured to provide a first operating condition such that;
the acoustic unit directs acoustic radiation toward a region of interest within the subject'"'"'s body,a first light portion is transmitted from the at least one light emitter to the at least one light detector, by being transmitted along the at least one second light guiding unit, from the first optical coupler to the second optical coupler, without passing through tissue of the subject'"'"'s body, anda second light portion is transmitted from the at least one light emitter to the at least one light detector, by being transmitted from the at least one first light guiding unit to the at least one third light guiding unit via the region of interest within the subject'"'"'s body, such that scattered light of the second light portion that passes into the at least one third light guiding unit contains a tagged component corresponding to photons tagged by the acoustic radiation, and an untagged component corresponding to photons untagged by the acoustic radiation, anda control unit configured to decouple, from each other, the tagged component and the untagged component of the second light portion received at the at least one light detector, based upon an interaction between light of the first light portion and light of the second light portion received at the at least one light detector.
2 Assignments
0 Petitions
Accused Products
Abstract
Apparatus and methods are provided including directing acoustic radiation toward a region of interest within a subject'"'"'s body. Light is transmitted from a light emitter to a light detector such that a first light portion is transmitted without passing through the subject'"'"'s tissue, and a second light portion is transmitted via the region of interest. Scattered light of the second light portion contains a tagged component corresponding to photons tagged by the acoustic radiation, and an untagged component corresponding to photons untagged by the acoustic radiation. Light of the first light portion undergoes an interaction with light of the second light portion at the light detector. A property of tissue of the region of interest is determined, by decoupling from each other the tagged and untagged components of the second light portion, based upon the interaction between the light of the first and second light portions.
55 Citations
23 Claims
-
1. Apparatus comprising a measurement system adapted to perform non-invasive measurements on a subject'"'"'s body, the measurement system comprising:
-
a measurement unit comprising; an acoustic unit configured to direct acoustic radiation toward a region of interest within the subject'"'"'s body; and an optical unit comprising; an illumination assembly that comprises at least one light emitter, and at least one first light guiding unit and at least one second light guiding unit, the at least one light emitter, the at least one first light guiding unit and the at least one second light guiding unit being optically coupled to each other via a first optical coupler; and a light detection assembly that comprises at least one light detector, the at least one second light guiding unit, and at least one third light guiding unit, the at least one light detector, the at least one second light guiding unit, and the at least one third light guiding unit being optically coupled to each other via a second optical coupler, the measurement unit being configured to provide a first operating condition such that; the acoustic unit directs acoustic radiation toward a region of interest within the subject'"'"'s body, a first light portion is transmitted from the at least one light emitter to the at least one light detector, by being transmitted along the at least one second light guiding unit, from the first optical coupler to the second optical coupler, without passing through tissue of the subject'"'"'s body, and a second light portion is transmitted from the at least one light emitter to the at least one light detector, by being transmitted from the at least one first light guiding unit to the at least one third light guiding unit via the region of interest within the subject'"'"'s body, such that scattered light of the second light portion that passes into the at least one third light guiding unit contains a tagged component corresponding to photons tagged by the acoustic radiation, and an untagged component corresponding to photons untagged by the acoustic radiation, and a control unit configured to decouple, from each other, the tagged component and the untagged component of the second light portion received at the at least one light detector, based upon an interaction between light of the first light portion and light of the second light portion received at the at least one light detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method for performing non-invasive measurements on a subject'"'"'s body, the method comprising:
-
directing acoustic radiation toward a region of interest within the subject'"'"'s body; transmitting light from a light emitter to a light detector under a first operating condition, such that; a first light portion is transmitted from the light emitter to the light detector without passing through tissue of the subject, a second light portion is transmitted from the light emitter to the light detector via the region of interest within the subject'"'"'s body, such that scattered light of the second light portion that is received at the light detector contains a tagged component corresponding to photons tagged by the acoustic radiation, and an untagged component corresponding to photons untagged by the acoustic radiation, transmitted light of the first light portion is optically coupled to transmitted light of the second light portion, and light of the first light portion undergoes an interaction with received light of the second light portion at the light detector, by light of the first light portion that is received at the light detector and light of the second light portion that is received at the light detector being optically coupled to each other; detecting the light received at the light detector; and decoupling from each other the tagged and untagged components of the second light portion received at the light detector, based upon the interaction between the light of the first light portion that is received at the light detector and the light of the second light portion that is received at the light detector. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
Specification