US 12,408,989 B2
Method and system for surgical navigation
Chen-Tai Lin, Taichung (TW); Shan-Chien Cheng, Taichung (TW); and Ying-Yi Cheng, Taichung (TW)
Assigned to Remex Medical Corp., Taichung (TW)
Filed by Remex Medical Corp., Taichung (TW)
Filed on Oct. 17, 2022, as Appl. No. 18/047,268.
Application 18/047,268 is a continuation in part of application No. 17/389,747, filed on Jul. 30, 2021, granted, now 11,832,897.
Prior Publication US 2023/0115934 A1, Apr. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 34/20 (2016.01); A61B 90/00 (2016.01)
CPC A61B 34/20 (2016.02) [A61B 90/36 (2016.02); A61B 2034/2055 (2016.02); A61B 2090/364 (2016.02)] 23 Claims
OG exemplary drawing
 
1. A surgical navigation method comprising steps of:
obtaining a three-dimensional image;
selecting a viewing angle direction;
generating one or more two-dimensional images arranged along the viewing angle direction from the three-dimensional image;
superimposing the one or more two-dimensional images along the viewing angle direction to form a two-dimensional superimposed image; and
guiding a movement of a virtual surgical instrument into the two-dimensional superimposed image;
wherein the two-dimensional superimposed image presents at least one two-dimensional superimposed region according to the viewing angle direction;
wherein the surgical navigation method further comprises adjusting the one or more two-dimensional images superimposed along the viewing angle direction according to a contour sharpness of the at least one two-dimensional superimposed region in the two-dimensional superimposed image;
wherein the two-dimensional superimposed image is a first two-dimensional superimposed image, the viewing angle direction is a first viewing angle direction, and the surgical navigation method further comprises:
selecting a second viewing angle direction, which is different from the first viewing angle direction;
generating another one or more two-dimensional images arranged along the second viewing angle direction from the three-dimensional image;
superimposing the another one or more two-dimensional images along the second viewing angle direction to form a second two-dimensional superimposed image; and
guiding the movement of the virtual surgical instrument into the second two-dimensional superimposed image.