Handheld Raman body fluid analyzer
First Claim
1. An apparatus for in vitro detection of an analyte in a body fluid sample using low resolution Raman spectroscopy with a resolution of between 10 cm−
- 1 and 100 cm−
1 comprising;
a disposable strip for receiving a sample of body fluid on the target region;
a light source for irradiating the target region to produce a Raman spectrum consisting of scattered electromagnetic radiation;
a low resolution diffraction grating dispersion element positioned to receive and separate the scattered radiation into different wavelength components;
a detection array, optically aligned with the dispersion element for detecting at least some of the wavelength components of the scattered light; and
a processor for processing data from the detector array and calculating information about an analyte within the body fluid sample.
1 Assignment
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Accused Products
Abstract
Methods and apparatus for in vitro detection of an analyte in a body fluid sample using low resolution Raman spectroscopy are disclosed. The body fluid analyzer includes a disposable strip for receiving a sample of body fluid on a target region, the target region including gold sol-gel to provide surface enhanced Raman scattering. A light source irradiates the target region to produce a Raman spectrum consisting of scattered electromagnetic radiation that is separated into different wavelength components by a dispersion element. A detection array detects at least some of the wavelength components of the scattered light and provides data to a processor for processing the data. The results of the processed data are displayed on a screen to inform a user about an analyte within the body fluid sample.
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Citations
25 Claims
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1. An apparatus for in vitro detection of an analyte in a body fluid sample using low resolution Raman spectroscopy with a resolution of between 10 cm−
- 1 and 100 cm−
1 comprising;a disposable strip for receiving a sample of body fluid on the target region; a light source for irradiating the target region to produce a Raman spectrum consisting of scattered electromagnetic radiation; a low resolution diffraction grating dispersion element positioned to receive and separate the scattered radiation into different wavelength components; a detection array, optically aligned with the dispersion element for detecting at least some of the wavelength components of the scattered light; and a processor for processing data from the detector array and calculating information about an analyte within the body fluid sample. - 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)
- 1 and 100 cm−
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25. An apparatus for in vitro detection of an analyte in a body fluid sample using low resolution Raman spectroscopy with a resolution of between 10 cm−
- 1 and 100 cm−
1 comprising;a test strip for receiving a sample of body fluid on a target region, the target region comprising a metallic material to provide surface enhanced Raman scattering; a laser for irradiating the target region to produce a Raman spectrum consisting of scattered electromagnetic radiation; a low resolution diffraction grating dispersion element positioned to receive and separate the scattered radiation into different wavelength components; a detection array, optically aligned with the dispersion element for detecting at least some of the wavelength components of the scattered light; and a processor for processing data from the detector array and calculating glucose concentration and information about at least one other analyte within the body fluid sample.
- 1 and 100 cm−
Specification