Pulsed lighting imaging systems and methods
First Claim
Patent Images
1. An imaging system for analyzing a tissue substrate, comprising;
- a light source;
a light transport body configured to project light from the light source to the tissue substrate and transmit light from the tissue substrate;
an analysis section which is in optical communication with the light transport body and which includes a video imaging system that utilizes a plurality of sets of field lines integrated over staggered time intervals that overlap in an overlap period for odd and even field lines that will be integrated into a single image; and
a controller which is in communication with the light source and video imaging system and which is configured to activate the light source to emit a synchronized light pulse having a duty cycle of lighting of about 50% to be on only during the overlap period of odd and even field lines that will be integrated into a single image of the video imaging system.
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Abstract
Systems and methods for monitoring patients utilizing reflectance avoidance as well as other imaging modalities. Information regarding perfusion, oxygen saturation and oxygen availability, as well as others may be obtained. System embodiments may include a light source, a light transport body configured to project light from the light source to an examination substrate and transmit light reflected by the examination substrate, and an analysis section in optical communication with the light transport body. The light source may be pulsed in order to improve the quality of video images produced by the systems.
86 Citations
30 Claims
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1. An imaging system for analyzing a tissue substrate, comprising;
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a light source; a light transport body configured to project light from the light source to the tissue substrate and transmit light from the tissue substrate; an analysis section which is in optical communication with the light transport body and which includes a video imaging system that utilizes a plurality of sets of field lines integrated over staggered time intervals that overlap in an overlap period for odd and even field lines that will be integrated into a single image; and a controller which is in communication with the light source and video imaging system and which is configured to activate the light source to emit a synchronized light pulse having a duty cycle of lighting of about 50% to be on only during the overlap period of odd and even field lines that will be integrated into a single image of the video imaging system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An imaging system for analyzing a tissue substrate, comprising;
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an LED light source; a light transport body configured to project light from the LED light source to the tissue substrate from a side and transmit light from the tissue substrate; an analysis section which is in optical communication with the light transport body, which is configured to receive light from the tissue substrate and which includes a reflectance avoidance imaging module, a reflectance spectrophotometry module, a fluorescence imaging module and a video imaging system that utilizes a plurality of sets of field lines integrated over staggered time intervals that overlap in an overlap period for odd and even field lines that will be integrated into a single image; and a controller which is in communication with the LED light source and video imaging system and which is configured to synchronously pulse the LED light source so as to have a duty cycle of lighting of about 50% and to be on only during the overlap period of odd and even field lines that will be integrated into a single image of the video imaging system. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of monitoring a patient, comprising:
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providing an imaging system including a light source, a light transport body configured to project light from the light source to tissue substrate and transmit light from the tissue substrate, an analysis section in optical communication with the light transport body and a video imaging system that utilizes a plurality of sets of field lines integrated over staggered time intervals that overlap in an overlap period for odd and even field lines that will be integrated into a single image and a controller configured to activate the light source so as to have a duty cycle of lighting of about 50% and only within the overlap period of odd and even field lines that will be integrated into a single image of the video imaging system; illuminating a tissue substrate of the patient over a duty cycle of lighting of about 50% with pulsed synchronized light from the light source only during an overlap period of odd and even field lines that will be integrated into a single image of the video imaging system; receiving light from below a surface of the tissue substrate; and generating an image of the tissue substrate with the sets of field lines integrated during the overlap period. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification