US 12,251,340 B2
Vacuum loss detection during laser eye surgery
Phillip Gooding, Mountain View, CA (US); Christine Beltran, San Bruno, CA (US); Michael Campos, Fremont, CA (US); Jan Wysopal, Livermore, CA (US); Brent Eikanas, Brentwood, CA (US); and Rene Hugues, Santa Clara, CA (US)
Assigned to AMO Development, LLC, Irvine, CA (US)
Filed by AMO Development, LLC, Irvine, CA (US)
Filed on Aug. 30, 2023, as Appl. No. 18/459,044.
Application 16/409,731 is a division of application No. 14/661,951, filed on Mar. 18, 2015, granted, now 10,285,860, issued on May 14, 2019.
Application 18/459,044 is a continuation of application No. 17/238,107, filed on Apr. 22, 2021, granted, now 11,744,736.
Application 17/238,107 is a continuation of application No. 16/409,731, filed on May 10, 2019, granted, now 11,000,414, issued on May 11, 2021.
Application 14/661,951 is a continuation in part of application No. 14/068,994, filed on Oct. 31, 2013, granted, now 9,987,165, issued on Jun. 5, 2018.
Claims priority of provisional application 61/721,693, filed on Nov. 2, 2012.
Prior Publication US 2023/0404807 A1, Dec. 21, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61F 9/00 (2006.01); A61F 9/008 (2006.01); A61F 9/009 (2006.01); A61M 1/00 (2006.01)
CPC A61F 9/009 (2013.01) [A61F 9/008 (2013.01); A61M 1/784 (2021.05); A61F 9/00825 (2013.01); A61F 2009/00851 (2013.01); A61F 2009/0087 (2013.01); A61F 2009/00872 (2013.01); A61M 1/73 (2021.05); A61M 1/74 (2021.05); A61M 1/782 (2021.05); A61M 2205/3344 (2013.01); A61M 2210/0612 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of detecting loss of vacuum in a patient interface of a laser eye surgery system, comprising:
coupling the patient interface to an eye with suction provided to a suction ring in contact with the eye by a suction supply conduit so as to create an interface container over the eye defining an interface container volume, the suction supply conduit leading to a suction circuit having a source of suction;
introducing a liquid to the interface container volume to create a transmissive medium of the liquid above the eye;
coupling the patient interface to an ophthalmic laser surgery system;
performing an ophthalmic laser procedure on the eye through the patient interface while maintaining suction to the suction ring;
measuring a monitoring conduit pressure in a monitoring conduit connected to sense pressure in the suction ring, the monitoring conduit leading to a monitoring circuit having a substantially smaller volume than the suction circuit; and
interrupting the ophthalmic procedure when the monitoring conduit pressure rises above a threshold amount.