Near-infrared lasers for non-invasive monitoring of glucose, ketones, HBA1C, and other blood constituents
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01J-003/00
G01N-033/15
A61B-005/1455
A61B-005/00
G01J-003/10
G01J-003/28
G01J-003/453
G01N-021/359
A61B-005/145
G01N-033/49
H01S-003/30
G01J-003/14
G01J-003/18
출원번호
US-0650897
(2013-12-17)
등록번호
US-9494567
(2016-11-15)
국제출원번호
PCT/US2013/075700
(2013-12-17)
국제공개번호
WO2014/105520
(2014-07-03)
발명자
/ 주소
Islam, Mohammed N.
출원인 / 주소
Omni Medsci, Inc.
대리인 / 주소
Brooks Kushman P.C.
인용정보
피인용 횟수 :
0인용 특허 :
165
초록▼
Non-invasive monitoring of blood constituents such as glucose, ketones, or hemoglobin A1c may be accomplished using near-infrared or short-wave infrared (SWIR) light sources through absorbance, diffuse reflection, or transmission spectroscopy. As an example, hydro-carbon related substances such as g
Non-invasive monitoring of blood constituents such as glucose, ketones, or hemoglobin A1c may be accomplished using near-infrared or short-wave infrared (SWIR) light sources through absorbance, diffuse reflection, or transmission spectroscopy. As an example, hydro-carbon related substances such as glucose or ketones have distinct spectral features in the SWIR between approximately 1500 and 2500 nm. An SWIR super-continuum laser based on laser diodes and fiber optics may be used as the light source for the non-invasive monitoring. Light may be transmitted or reflected through a tooth, since an intact tooth and its enamel and dentine may be nearly transparent in the SWIR. Blood constituents or analytes within the capillaries in the dental pulp may be detected. The non-invasive monitoring device may communicate with a device such as a smart phone or tablet, which may transmit a signal related to the measurement to the cloud with cloud-based value-added services.
대표청구항▼
1. A diagnostic system comprising: a light source configured to generate an output optical beam, comprising: one or more semiconductor sources configured to generate an input beam;one or more optical amplifiers configured to receive at least a portion of the input beam and to deliver an intermediate
1. A diagnostic system comprising: a light source configured to generate an output optical beam, comprising: one or more semiconductor sources configured to generate an input beam;one or more optical amplifiers configured to receive at least a portion of the input beam and to deliver an intermediate beam to an output end of the one or more optical amplifiers;one or more optical fibers configured to receive at least a portion of the intermediate beam and to deliver at least the portion of the intermediate beam to a distal end of the one or more optical fibers to form a first optical beam;a nonlinear element configured to receive at least a portion of the first optical beam and to broaden a spectrum associated with the at least a portion of the first optical beam to at least 10 nanometers through a nonlinear effect in the nonlinear element to form the output optical beam with an output beam broadened spectrum; andwherein at least a portion of the output beam broadened spectrum comprises a short-wave infrared wavelength between approximately 1400 nanometers and approximately 2500 nanometers, and wherein at least a portion of the one of more fibers is a fused silica fiber with a core diameter less than approximately 400 microns;an interface device configured to receive a received portion of the output optical beam and to deliver a delivered portion of the output optical beam to a sample, wherein the delivered portion of the output optical beam is configured to generate a spectroscopy output beam from the sample; anda receiver configured to receive at least a portion of the spectroscopy output beam having a bandwidth of at least 10 nanometers and to process the portion of the spectroscopy output beam to generate an output signal representing at least in part a property of hydro-carbon bonds. 2. The system of claim 1, wherein the interface device further comprises a replaceable insert. 3. The system of claim 1, wherein the sample comprises at least in part enamel, dentine and blood, and wherein the output signal represents at least in part a property of the blood. 4. The system of claim 1, wherein the input beam comprises a repetition rate between approximately one kilohertz and approximately 100 MHz. 5. The system of claim 1, wherein the receiver further comprises a wireless transmitter configured to communicate a wireless signal associated with the output signal to a network. 6. A measurement system comprising: a light source generating an output optical beam, comprising:a plurality of semiconductor sources generating an input optical beam;a multiplexer configured to receive at least a portion of the input optical beam and to form an intermediate optical beam; one or more fibers configured to receive at least a portion of the intermediate optical beam and to form the output optical beam, wherein the output optical beam comprises one or more optical wavelengths, at least a portion of which are between approximately 1400 nanometers and approximately 2500 nanometers, and wherein at least a portion of the one or more fibers is a fused silica fiber with a core diameter less than approximately 400 microns; and wherein the output optical beam has a broadened spectrum relative to the intermediate optical beam of at least 10 nanometers; an interface device configured to receive a received portion of the output optical beam and to deliver a delivered portion of the output optical beam to a sample comprising at least in part enamel, dentine and pulp, wherein the delivered portion of the output optical beam is configured to generate a spectroscopy output beam from the sample; and a receiver configured to receive at least a portion of the spectroscopy output beam having a bandwidth of at least 10 nanometers and to process the portion of the spectroscopy output beam to generate an output signal representing at least in part a property of blood contained within the pulp. 7. The system of claim 6, wherein the light source comprises a super-continuum laser. 8. The system of claim 6, wherein the light source comprises a super-luminescent diode. 9. The system of claim 6, wherein the light source comprises a light emitting diode. 10. The system of claim 6, wherein the one of more optical wavelengths comprise a short-wave infrared wavelength. 11. The system of claim 6, wherein the property of the blood comprises a glucose level. 12. The system of claim 11, wherein at least a portion of the one or more optical wavelengths is near 1587 nanometers or near 1750 nanometers. 13. The system of claim 11, wherein at least a portion of the one or more optical wavelengths is near 2120 nanometers, near 2270 nanometers, or near 2320 nanometers. 14. The system of claim 6, wherein the delivered portion of the output optical beam is transmitted through the sample. 15. The system of claim 6, wherein the interface device further comprises a replaceable insert. 16. The system of claim 6, wherein the receiver is configured to process the portion of the spectroscopy output beam using a pattern matching methodology. 17. A method of measuring comprising: generating an output optical beam, comprising:generating an input optical beam from a plurality of semiconductor sources;multiplexing at least a portion of the input optical beam andforming an intermediate optical beam;guiding at least a portion of the intermediate optical beam using one or more fibers, at least a portion of which comprises fused silica fiber with a core diameter less than approximately 400 microns and forming the output optical beam, wherein the output optical beam comprises one or more optical wavelengths, at least a portion of which are between approximately 1400 nanometers and approximately 2500 nanometers; andbroadening the spectrum of at least a portion of the intermediate optical beam to at least 10 nanometers to form the output optical beam with an output beam broadened spectrum;receiving a received portion of the output optical beam and delivering a delivered portion of the output optical beam to a sample, wherein the sample comprises at least in part enamel, dentine and pulp; generating a spectroscopy output beam from the sample; receiving at least a portion of the spectroscopy output beam having a bandwidth of at least 10 nanometers; andprocessing the portion of the spectroscopy output beam and generating an output signal representing at least in part a property of blood contained within the pulp. 18. The method of claim 17, wherein the one or more optical wavelengths comprise a short-wave infrared wavelength. 19. The method of claim 17, wherein the property of the blood comprises a glucose level. 20. The method of claim 17, further comprising communicating a wireless signal associated with the output signal to a network.
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