COMPACT LIGHT SENSORS FOR SURGICAL APPLICATIONS AND SHOCK DETECTION
First Claim
Patent Images
1. An imaging device, comprising:
- a substrate having a first side and a second side, the substrate configured to be affixed to a subject in an orientation where the first side faces towards a region of interest on a subject and the second side faces away from the region of interest on the subject;
a plurality of light sources attached to the substrate, the plurality of light sources oriented to emit light away from the first side of the substrate;
an optical detector attached to the substrate, the optical detector oriented to detect light incident on the first side of the substrate;
one or more processing units in electronic communication with the plurality of light sources and optical detector;
a communication module in electronic communication with the one or more processing units; and
memory in electronic communication with the one or more processing units or within the one or more processor units, the memory storing one or more protocols executable by the one or more processing unit, the one or more protocols including instructions for;
turning on and off respective light sources in the plurality of light sources;
acquiring a plurality of images of the region of interest of the subject, wherein each image in the plurality of images is acquired at a different spectral band in a plurality of spectral bands;
determining a tissue oxygenation parameter based on the plurality of images of the skin of the subject; and
communicating an indication of the tissue oxygenation parameter to an output element via the communication module.
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Accused Products
Abstract
Provided are methods and systems for concurrent imaging at multiple wavelengths. Also provided are methods and systems for monitoring tissue oximetry over time through use of a wearable or affixable imaging device.
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Citations
20 Claims
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1. An imaging device, comprising:
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a substrate having a first side and a second side, the substrate configured to be affixed to a subject in an orientation where the first side faces towards a region of interest on a subject and the second side faces away from the region of interest on the subject; a plurality of light sources attached to the substrate, the plurality of light sources oriented to emit light away from the first side of the substrate; an optical detector attached to the substrate, the optical detector oriented to detect light incident on the first side of the substrate; one or more processing units in electronic communication with the plurality of light sources and optical detector; a communication module in electronic communication with the one or more processing units; and memory in electronic communication with the one or more processing units or within the one or more processor units, the memory storing one or more protocols executable by the one or more processing unit, the one or more protocols including instructions for; turning on and off respective light sources in the plurality of light sources; acquiring a plurality of images of the region of interest of the subject, wherein each image in the plurality of images is acquired at a different spectral band in a plurality of spectral bands; determining a tissue oxygenation parameter based on the plurality of images of the skin of the subject; and communicating an indication of the tissue oxygenation parameter to an output element via the communication module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An imaging system, comprising:
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a plurality of imaging components, each imaging component in the plurality of imaging components comprising; a plurality of light sources; and an optical detector; one or more processing units in electronic communication with the plurality of imaging components; memory in electronic communication with the one or more processing units or within the one or more processing units, the memory storing one or more protocols executable by the one or more processing unit, the one or more protocols including instructions for; turning on and off respective light sources in the plurality of light sources at each imaging component; acquiring a plurality of images at each imaging component, wherein each image in the plurality of images is acquired at a different spectral band in a plurality of spectral bands; determining a tissue oxygenation parameter based on the plurality of images acquired at each imaging component. - View Dependent Claims (17)
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18. An imaging device, comprising:
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an imaging component, the imaging component comprising; a lens disposed along an optical axis and configured to receive light; a plurality of photo-sensors; an optical path assembly comprising a plurality of beam splitters in optical communication with the lens and the plurality of photo-sensors; a plurality of multi-bandpass filters, wherein each respective multi-bandpass filter in the plurality of multi-bandpass filters covers a corresponding photo-sensor in the plurality of photo-sensors thereby selectively allowing a different corresponding spectral band of light, from the light received by the lens and split by the plurality of beam splitters, to pass through to the corresponding photo-sensor;
whereineach respective beam splitter in the plurality of beam splitters is configured to split the light received by the lens into at least two optical paths, a first beam splitter in the plurality of beam splitters is in direct optical communication with the lens and a second beam splitter in the plurality of beam splitters is in indirect optical communication with the lens through the first beam splitter, and the plurality of beam splitters collectively split light received by the lens into a plurality of optical paths, wherein each respective optical path in the plurality of optical paths is configured to direct light to a corresponding photo-sensor in the plurality of photo-sensors through the respective multi-bandpass filter covering the respective photo-sensor; an arm attached to the imaging component; and a base structure attached to the arm, the base structure supporting the arm and imaging component. - View Dependent Claims (19, 20)
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Specification