US 11,832,797 B2
Endoscopic fluorescence imaging
Xiaolong Ouyang, Bellevue, WA (US)
Assigned to MicronVision Corp., Bellevue, WA (US)
Filed by MICRONVISION CORP, Bellevue, WA (US)
Filed on Mar. 25, 2019, as Appl. No. 16/363,209.
Application 16/363,209 is a continuation in part of application No. PCT/US2017/053171, filed on Sep. 25, 2017.
Claims priority of provisional application 62/647,817, filed on Mar. 25, 2018.
Claims priority of provisional application 62/654,295, filed on Apr. 6, 2018.
Claims priority of provisional application 62/671,445, filed on May 15, 2018.
Claims priority of provisional application 62/816,366, filed on Mar. 11, 2019.
Claims priority of provisional application 62/399,429, filed on Sep. 25, 2016.
Claims priority of provisional application 62/399,436, filed on Sep. 25, 2016.
Claims priority of provisional application 62/399,712, filed on Sep. 26, 2016.
Claims priority of provisional application 62/405,915, filed on Oct. 8, 2016.
Claims priority of provisional application 62/423,213, filed on Nov. 17, 2016.
Claims priority of provisional application 62/424,381, filed on Nov. 18, 2016.
Claims priority of provisional application 62/428,018, filed on Nov. 30, 2016.
Claims priority of provisional application 62/429,368, filed on Dec. 2, 2016.
Claims priority of provisional application 62/485,454, filed on Apr. 14, 2017.
Claims priority of provisional application 62/485,641, filed on Apr. 14, 2017.
Claims priority of provisional application 62/502,670, filed on May 6, 2017.
Claims priority of provisional application 62/550,188, filed on Aug. 25, 2017.
Claims priority of provisional application 62/550,560, filed on Aug. 25, 2017.
Claims priority of provisional application 62/550,581, filed on Aug. 26, 2017.
Claims priority of provisional application 62/558,818, filed on Sep. 14, 2017.
Prior Publication US 2019/0216325 A1, Jul. 18, 2019
Int. Cl. A61B 1/04 (2006.01); A61B 1/06 (2006.01); A61B 1/045 (2006.01); A61B 1/00 (2006.01); A61B 1/05 (2006.01); A61B 5/00 (2006.01); A61B 1/307 (2006.01); A61M 13/00 (2006.01); A61B 1/12 (2006.01); G02B 21/16 (2006.01); A61B 1/015 (2006.01)
CPC A61B 1/043 (2013.01) [A61B 1/00009 (2013.01); A61B 1/00052 (2013.01); A61B 1/00096 (2013.01); A61B 1/00186 (2013.01); A61B 1/015 (2013.01); A61B 1/045 (2013.01); A61B 1/05 (2013.01); A61B 1/051 (2013.01); A61B 1/0607 (2013.01); A61B 1/0638 (2013.01); A61B 1/0655 (2022.02); A61B 1/126 (2013.01); A61B 1/307 (2013.01); A61B 5/0071 (2013.01); A61M 13/003 (2013.01); G02B 21/16 (2013.01); A61B 2562/0233 (2013.01); A61M 2210/1085 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A single-use, disposable cannula for multi-band imaging of a patient's internal organ, said cannula comprising:
an imaging structure at a distal portion of the cannula;
a gas inlet port that is at a proximal portion of the cannula and is configured to receive insufflating gas, a gas outlet port at the distal portion of the cannula, and a gas conduit between said gas inlet port and gas outlet port, wherein said gas outlet port is configured to direct insufflating gas delivered thereto through said gas conduit in a flow over said imaging structure configured to clear the imaging structure;
a source of insufflating gas under pressure selectively coupled to said gas inlet port to supply insufflating gas thereto;
wherein said imaging structure at the distal portion of the cannula further comprises:
a light source configured to illuminate said internal organ with white light from a white LED and with non-white light from a narrow-band, non-white LED, wherein the white LED and the non-white LED illuminate the internal organ from different angles;
a multi-pixel, backside-illuminated, two-dimensional white light sensor array configured to image white light from the organ and to generate white light image data;
a multi-pixel, backside-illuminated, two-dimensional non-white sensor array configured to image non-white light from the organ and to generate non-white light image data; and
a readout circuit electrically and physically integrated with said white light sensor array and said non-white light sensor array into a circuit stack; and
wherein the white light image data and the non-white light image data represent respective white and non-white images of the organ that are both spatially and temporally registered with each other.