US 12,068,074 B2
Stereoscopic marker device and three-dimensional real-time positioning method of orthopedic surgery
Po-Chi Hu, Kaohsiung (TW); Yan-Ting Chen, Kaohsiung (TW); Chin-Chung Lin, Kaohsiung (TW); Wen-Hui Huang, Kaohsiung (TW); and Keng-Ta Lin, Kaohsiung (TW)
Assigned to METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE, Kaohsiung (TW)
Filed by METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTRE, Kaohsiung (TW)
Filed on Oct. 6, 2020, as Appl. No. 17/064,069.
Claims priority of application No. 108144741 (TW), filed on Dec. 6, 2019.
Prior Publication US 2021/0174950 A1, Jun. 10, 2021
Int. Cl. A61B 34/20 (2016.01); A61B 17/70 (2006.01); A61B 17/84 (2006.01); A61B 90/96 (2016.01); G06K 19/06 (2006.01); G16H 20/40 (2018.01); G16H 30/20 (2018.01); G16H 30/40 (2018.01); G16H 40/40 (2018.01); G16H 40/63 (2018.01); A61B 17/56 (2006.01); A61B 90/00 (2016.01)
CPC G16H 40/40 (2018.01) [A61B 17/70 (2013.01); A61B 17/846 (2013.01); A61B 34/20 (2016.02); A61B 90/96 (2016.02); G06K 19/06037 (2013.01); G16H 20/40 (2018.01); G16H 30/20 (2018.01); G16H 30/40 (2018.01); G16H 40/63 (2018.01); A61B 2017/564 (2013.01); A61B 2034/2057 (2016.02); A61B 2090/3916 (2016.02); A61B 2090/3937 (2016.02); G06K 2019/06253 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A stereoscopic marker device, comprising:
a polyhedral cube, being a dodecahedral cube and comprising twelve flat surfaces, wherein the twelve flat surfaces are used as one primary marker and eight secondary markers respectively, the primary marker comprises a primary graphic code, at least three of the eight secondary markers individually comprise a first secondary graphic code, a second secondary graphic code, and a third secondary graphic code, and the primary graphic code is used for providing spatial coordinate information, which is used for calculating six degrees of freedom (DOF) attitude data; and
a spike-shaped body, combined with the polyhedral cube and configured to be fixed on a surgical site;
wherein when the primary graphic code of the primary marker of the polyhedral cube is obscured, one of a primary photographic device and a secondary photographic device must recognize the first to the third secondary graphic codes of the at least three secondary markers of the polyhedral cube.