US 12,290,317 B2
Miniaturized mobile, low cost optical coherence tomography system for home based ophthalmic applications
Christian Oggenfuss, Lyss (CH); Karim Haroud, Villeneuve (CH); Lukas Scheibler, Telluride, CO (US); Matthias Pfister, Liebefeld-Bern (CH); Urban Schnell, Munchenbuchsee (CH); Stefan Troller, Sissach (CH); Ryo Kubota, Seattle, WA (US); and Philip M. Buscemi, Mount Pleasant, SC (US)
Assigned to ACUCELA INC., Seattle, WA (US)
Filed by ACUCELA INC., Seattle, WA (US)
Filed on Sep. 27, 2023, as Appl. No. 18/475,666.
Application 18/475,666 is a continuation of application No. 18/064,422, filed on Dec. 12, 2022, granted, now 11,896,308.
Application 18/064,422 is a continuation of application No. 17/662,054, filed on May 4, 2022, granted, now 11,576,572, issued on Feb. 14, 2023.
Application 17/662,054 is a continuation of application No. 17/247,630, filed on Dec. 18, 2020, granted, now 11,357,401, issued on Jun. 14, 2022.
Application 17/247,630 is a continuation of application No. PCT/US2019/038270, filed on Jun. 20, 2019.
Claims priority of provisional application 62/687,686, filed on Jun. 20, 2018.
Prior Publication US 2024/0023805 A1, Jan. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 3/10 (2006.01); A61B 3/00 (2006.01); A61B 3/13 (2006.01)
CPC A61B 3/102 (2013.01) [A61B 3/0008 (2013.01); A61B 3/1005 (2013.01); A61B 3/132 (2013.01); A61B 2560/0431 (2013.01); A61B 2562/0214 (2013.01); A61B 2562/0257 (2013.01); A61B 2562/223 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An OCT system to measure an eye of a user, the OCT system comprising:
a fixation target visible to the eye;
an OCT interferometer configured to measure thickness of a retina of the eye;
a plurality of light sources arranged to reflect from a cornea of the eye and generate a Purkinje image comprising reflections of the plurality of light sources from the cornea;
a sensor to measure a position of the Purkinje image reflected from the cornea;
a processor operatively coupled to the sensor to determine a position of the eye in response to the Purkinje image; and
a user input operatively coupled to the processor to trigger a plurality of processor instructions;
wherein the processor is configured with instructions to determine XY positions of the eye in relation to an OCT measurement beam in response to locations of the reflections in the Purkinje image, the XY positions of the eye corresponding to locations transverse to the OCT measurement beam.