US 11,666,203 B2
Using a camera with an ENT tool
Vadim Gliner, Haifa (IL); Assaf Govari, Haifa (IL); Yehuda Algawi, Binyamina (IL); and Ilya Sitnitsky, Nahariya (IL)
Assigned to Biosense Webster (Israel) Ltd., Yokneam (IL)
Filed by BIOSENSE WEBSTER (ISRAEL) LTD., Yokneam (IL)
Filed on Sep. 10, 2019, as Appl. No. 16/566,818.
Claims priority of provisional application 62/741,395, filed on Oct. 4, 2018.
Prior Publication US 2020/0107701 A1, Apr. 9, 2020
Int. Cl. A61B 1/00 (2006.01); A61B 90/00 (2016.01); A61B 5/06 (2006.01); A61B 34/20 (2016.01); A61B 1/227 (2006.01); A61B 1/233 (2006.01)
CPC A61B 1/00009 (2013.01) [A61B 1/00096 (2013.01); A61B 1/00158 (2013.01); A61B 1/00194 (2022.02); A61B 5/062 (2013.01); A61B 5/065 (2013.01); A61B 34/20 (2016.02); A61B 90/361 (2016.02); A61B 1/227 (2013.01); A61B 1/233 (2013.01); A61B 2034/2046 (2016.02); A61B 2090/364 (2016.02); A61B 2090/3762 (2016.02)] 18 Claims
OG exemplary drawing
 
10. A method, comprising:
(a) connecting a tubular deflectable section of a probe distally to an insertion tube of the probe, the insertion tube having a non-deflectable section;
(b) attaching a camera to the tubular deflectable section, the camera having a direction of view;
(c) attaching a first magnetic field sensor coil, which has a first coil axis of symmetry, directly to the tubular deflectable section with the first coil axis parallel to the direction of view of the camera while the tubular deflectable section is aligned with the insertion tube;
(d) attaching a second magnetic field sensor coil, which has a second coil axis of symmetry, directly to the non-deflectable section of the insertion tube with the second coil axis perpendicular to the direction of view of the camera, the second magnetic field sensor coil being proximal relative to the first magnetic field sensor coil;
(e) inserting the probe into an aperture of a human patient;
(f) providing a display, coupled to display images output by the camera;
(g) receiving signals generated by the first and second sensor coils in response to a magnetic field traversing the coils;
(h) in response to the signals received at a first time, identifying an initial orientation of an initial image produced by the camera;
(i) in response to the signals received at a second time, subsequent to the first time, identifying a subsequent orientation of a subsequent image produced by the camera; and
(j) rotating the subsequent image on the display so as to reorient the subsequent image to the initial orientation.