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Patent US5324979A successfully refreshed from Google Patents.
US5324979A
Expired / Lapsed
US
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Method and means for generating synthetic spectra allowing quantitative measurement in near infrared measuring instruments
Assignee: Futrex Inc
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Filing: 1992-07-24
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Granted: 1994-06-28
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Expires: 2012-07-24
Abstract
Abstract A method and means for generating synthetic spectra allowing quantitative measurement utilizes dual chip alternatively energized IREDs with optical bandpass filter(s) passing two optical bands which is be combined with curvilinear interpolation to be utilized in a low cost small size quantitative measuring instrument.
Inventors
- 👤 Robert D. Rosenthal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:45
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/145; A61B5/1455; A61B5/14532; G; G01; G01J; G01J3/00; G01J3/02; G01J3/10; G01J3/108; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/255; G01N21/31; G01N21/35; G01N21/359; G01N2201/00; G01N2201/06; G01N2201/062; G01N2201/0621
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
132 words
A quantitative near-infrared analysis instrument for non-invasive measurement of a blood analyte present in a body part of a subject, said analysis instrument comprising: (a) an introducing means comprising a near-infrared energy source for introducing near-infrared energy into blood present in a body part of a patient, said near infrared energy source comprising at least one infrared emitting diode having at least two chips and producing at least two separate wavelengths; (b) detecting means for detecting near-infrared energy emerging from the body part and generating a signal based upon each of said at least two separate wavelengths from each of said at least two chips from said one infrared emitting diode; and (c) processing means for calculating a synthetic spectra for ,curvilinear interpolation based upon the signal generated from said detection means.
Claim 2
Dependent Claim
132 words
A quantitative near-infrared analysis instrument for non-invasive measurement of a blood analyte present in a body part of a subject, said analysis instrument comprising: (a) an introducing means comprising a near-infrared energy source for introducing near-infrared energy into blood present in a body part of a patient, said near infrared energy source comprising at least one infrared emitting diode having at least two chips and producing at least two separate wavelengths; (b) detecting means for detecting near-infrared energy emerging from the body part and generating a signal based upon each of said at least two separate wavelengths from each of said at least two chips from said one infrared emitting diode; and (c) processing means for calculating a synthetic spectra for ,curvilinear interpolation based upon the signal generated from said detection means.
Claim 3
Dependent Claim
33 words
The near-infrared analysis instrument of claim 1, wherein said at least one infrared emitting diode having at least two chips is used in combination with a filter means for passing two separate wavelengths.
Claim 4
Dependent Claim
18 words
The near-infrared analysis instrument of claim 2, wherein said filter means is a single filter having two bandpasses.
Claim 5
Dependent Claim
19 words
The near-infrared analysis instrument of claim 2, wherein said filter means comprises separate filters, each with a single bandpass.
Claim 6
Dependent Claim
30 words
The near-infrared analysis instrument of claim 1, wherein said near-infrared energy source comprises six infrared emitting diodes each having at least two chips and producing at least two separate wavelengths.
Claim 7
Dependent Claim
131 words
A quantitative near-infrared analysis instrument for non-invasive measurement of a blood analyte present in a body part of a subject, said instrument comprising: (a) an introducing means comprising a near-infrared energy source for introducing near-infrared energy into blood present in a body part of a patient, said near infrared energy source comprising six infrared emitting diodes each having at least two chips and wherein each of said two chips produces a separate wavelength; (b) detecting means for detecting near-infrared energy emerging from the body part and generating a signal based upon said separate wavelength from each of said at least two chips from each of said six infrared emitting diodes; and (c) processing means for calculating a synthetic spectra for curvilinear interpolation based upon the signal generated from said detection means.
Claim 8
Dependent Claim
131 words
A quantitative near-infrared analysis instrument for non-invasive measurement of a blood analyte present in a body part of a subject, said instrument comprising: (a) an introducing means comprising a near-infrared energy source for introducing near-infrared energy into blood present in a body part of a patient, said near infrared energy source comprising six infrared emitting diodes each having at least two chips and wherein each of said two chips produces a separate wavelength; (b) detecting means for detecting near-infrared energy emerging from the body part and generating a signal based upon said separate wavelength from each of said at least two chips from each of said six infrared emitting diodes; and (c) processing means for calculating a synthetic spectra for curvilinear interpolation based upon the signal generated from said detection means.
Claim 9
Dependent Claim
132 words
A quantitative near-infrared analysis instrument for non-invasive measurement of a blood analyte present in a body part of a subject, said analysis instrument comprising: (a) an introducing means comprising a near-infrared energy source for introducing near-infrared energy into blood present in a body part of a patient, said near infrared energy source comprising seven infrared emitting diodes each having at least two chips and wherein each of said two chips produces a separate wavelength; (b) detecting means for detecting near-infrared energy emerging from the body part and generating a signal based upon said separate wavelength from each of said at least two chips from each of said seven infrared emitting diodes; and (c) processing means for calculating a synthetic spectra for curvilinear interpolation based upon the signal generated from said detection means.
Claim 10
Dependent Claim
132 words
A quantitative near-infrared analysis instrument for non-invasive measurement of a blood analyte present in a body part of a subject, said analysis instrument comprising: (a) an introducing means comprising a near-infrared energy source for introducing near-infrared energy into blood present in a body part of a patient, said near infrared energy source comprising seven infrared emitting diodes each having at least two chips and wherein each of said two chips produces a separate wavelength; (b) detecting means for detecting near-infrared energy emerging from the body part and generating a signal based upon said separate wavelength from each of said at least two chips from each of said seven infrared emitting diodes; and (c) processing means for calculating a synthetic spectra for curvilinear interpolation based upon the signal generated from said detection means.
Claim 11
Dependent Claim
33 words
The near-infrared analysis instrument of claim 7, wherein each of said seven infrared emitting diodes having at least two chips is used in combination with a filter means for passing two separate wavelengths.
Claim 12
Dependent Claim
18 words
The near-infrared analysis instrument of claim 8, wherein said filter means is a single filter having two bandpasses.
Claim 13
Dependent Claim
19 words
The near-infrared analysis instrument of claim 8, wherein said filter means comprises separate filters, each with a single bandpass.
Claim 14
Dependent Claim
26 words
The near-infrared analysis instrument of claim 7, wherein said seven infrared emitting diodes emit energy at selected wavelengths from approximately 600 nanometers to approximately 1100 nanometers.
Claim 15
Dependent Claim
128 words
A quantitative near-infrared analysis instrument for non-invasive measurement of a blood analyte present in a body part of a subject, said analysis instrument comprising: (a) an introducing means comprising a near-infrared energy source for introducing near-infrared energy into blood present in a body part of a patient, said near infrared energy source comprising at least one infrared emitting diode having three chips and producing at least three separate wavelengths; (b) detecting means for detecting near-infrared energy emerging from the body part and generating a signal based upon each of said at least three separate wavelengths from each of said three chips from said one infrared emitting diode; and (c) processing means for calculating a synthetic spectra for curvilinear interpolation based upon the signal generated from said detection means.
Claim 16
Dependent Claim
128 words
A quantitative near-infrared analysis instrument for non-invasive measurement of a blood analyte present in a body part of a subject, said analysis instrument comprising: (a) an introducing means comprising a near-infrared energy source for introducing near-infrared energy into blood present in a body part of a patient, said near infrared energy source comprising at least one infrared emitting diode having three chips and producing at least three separate wavelengths; (b) detecting means for detecting near-infrared energy emerging from the body part and generating a signal based upon each of said at least three separate wavelengths from each of said three chips from said one infrared emitting diode; and (c) processing means for calculating a synthetic spectra for curvilinear interpolation based upon the signal generated from said detection means.
References Cited (Backward Citations)
US2983823A
Cited
US4286327A
Cited
EP0074428B1
Cited
US4620104A
Cited
EP0140633A2
Cited
US4627008A
Cited
US4742235A
Cited
US4627284A
Cited
US4755674A
Cited
EP0262779A1
Cited
US4882492A
Cited
US4922116A
Cited
EP0426358A1
Cited
US5070874A
Cited
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| 3.5 Years (Year 4) | 1997-06-27 | 1997-12-27 | 1998-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-27 | 2001-12-27 | 2002-06-28 | $3760.00 | Window Closed / Lapsed |
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