Broadband solid-state spectroscopy illuminator and method
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Accused Products
Abstract
An improved spectroscopy illuminator (103) for generating broadband light and for delivering the light to a sample with an improved delivery efficiency, for higher optical density and/or reduced thermal transfer uses a solid-state broadband white LED (107) to produce broadband light (114), which is then transmitted to a sample region (125), such as a living tissue or blood in vivo or a biological sample in a spectrophotometer target region. The solid-state source keeps both the illuminator and sample cool during operation, allowing the illuminator to be integrated into the tip of a medical probe, a medical system such as an oximeter, or other monitoring systems or devices making measurements based on light scattering, absorbance, fluorescence, phosphorescence, Raman effects, use of a contrast agent, or other known spectroscopy techniques. Systems incorporating the improved illuminator, and methods of use are also disclosed.
127 Citations
62 Claims
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1-23. -23. (canceled)
- 24. A broadband illuminator for use in illuminating spectroscopy samples comprising at least one solid-state broadband light source, wherein the broadband spectroscopy source emits useable light over a wavelength range of 40 nm or more.
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25. A broadband illuminator for use in illuminating spectroscopy samples comprising at least one solid-state broadband light source, wherein the broadband spectroscopy source emits useable light over a wavelength range of at least 100 nm.
- 26. A broadband illuminator for use in illuminating spectroscopy samples comprising at least one solid-state broadband light source, wherein the solid-state broadband light source emits useable light over a wavelength range of at least 100 nm, and wherein said solid-state broadband light source is a broadband LED.
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36. The illuminator of claim 36, wherein the monitoring of met-hemoglobin, carboxy-hemoglobin, and other blood components is achieved by pulse oximetry.
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53. A spectroscopy method comprising:
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illuminating a sample with a broadband illumination from a broadband solid-state illuminator, wherein said broadband illuminator emits useable light over a wavelength range of at least 100 nm; and performing optical spectroscopy. - View Dependent Claims (54, 56, 57, 58, 59, 60, 61, 62)
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55. A spectroscopy method wherein illumination of a sample is achieved using a broadband LED.
Specification