US 11,986,160 B2
Image synchronization without input clock and data transmission clock in a pulsed hyperspectral imaging system
Joshua D. Talbert, Salt Lake City, UT (US); and Donald M. Wichern, Ogden, UT (US)
Assigned to Cllag GmbH International, Zug (CH)
Filed by Cilag GmbH International, Zug (CH)
Filed on Jan. 21, 2020, as Appl. No. 16/748,497.
Claims priority of provisional application 62/864,227, filed on Jun. 20, 2019.
Prior Publication US 2020/0403624 A1, Dec. 24, 2020
Int. Cl. A61B 1/00 (2006.01); A61B 1/045 (2006.01); A61B 1/05 (2006.01); A61B 1/06 (2006.01); A61B 6/00 (2006.01); H03L 7/08 (2006.01); H03L 7/089 (2006.01); H03L 7/099 (2006.01); H04N 25/75 (2023.01)
CPC A61B 1/045 (2013.01) [A61B 1/00006 (2013.01); A61B 1/000095 (2022.02); A61B 1/05 (2013.01); A61B 1/051 (2013.01); A61B 1/063 (2013.01); A61B 1/0655 (2022.02); A61B 6/482 (2013.01); H03L 7/0807 (2013.01); H03L 7/0891 (2013.01); H03L 7/0991 (2013.01); H04N 25/75 (2023.01)] 25 Claims
OG exemplary drawing
 
1. A system for imaging within a light deficient environment comprising:
an emitter comprising a visible source that emits visible pulses of electromagnetic radiation, and a plurality of hyperspectral sources that emit pulses of electromagnetic radiation selected to elicit a spectral response from a tissue;
an endoscope comprising a waveguide for transmitting the pulses of electromagnetic radiation from the emitter to a distal end of the endoscope;
an image sensor comprising a pixel array for sensing reflected electromagnetic radiation;
a plurality of bidirectional data pads on the image sensor for outputting image data and receiving configuration data; and
a controller in electronic communication with the image sensor and the emitter, wherein the controller is configured to synchronize the pulses of electromagnetic radiation emitted by the emitter and the sensing of reflected electromagnetic radiation by the image sensor;
wherein at least a portion of the pulses of electromagnetic radiation emitted by the plurality of hyperspectral sources comprises electromagnetic radiation within a first waveband from about 900 nm to about 1000 nm and a second waveband comprising one or both of:
electromagnetic radiation within a waveband from about 513 nm to about 545 nm; or
electromagnetic radiation within a waveband from about 565 nm to about 585 nm;
wherein each wavelength of electromagnetic radiation pulsed within the first waveband or the second waveband elicits a different spectral response from the tissue;
wherein the image sensor is configured to generate a plurality of exposure frames corresponding to electromagnetic radiation received in response to the pulses of the electromagnetic radiation emitted by the emitter;
wherein at least a portion of the plurality of exposure frames comprises one or more visible exposure frames generated in response to one or more pulses from the visible source of electromagnetic radiation and one or more hyperspectral exposure frames generated in response to one or more pulses from the plurality of hyperspectral sources of electromagnetic radiation;
wherein the one or more hyperspectral exposure frames comprises spectral information corresponding to the pulse of electromagnetic radiation that elicited the spectral response from the tissue.