US 12,290,423 B2
Scanning jig and method and system for identifying spatial position of implant or suchlike
Naruto Otawa, Fukuoka (JP)
Appl. No. 16/615,149
Filed by Naruto Otawa, Fukuoka (JP)
PCT Filed May 2, 2018, PCT No. PCT/JP2018/017552
§ 371(c)(1), (2) Date Nov. 20, 2019,
PCT Pub. No. WO2019/211912, PCT Pub. Date Nov. 7, 2019.
Prior Publication US 2021/0038350 A1, Feb. 11, 2021
Int. Cl. A61C 9/00 (2006.01); A61B 90/00 (2016.01); A61C 8/00 (2006.01); A61C 13/00 (2006.01); G06T 7/70 (2017.01); G06V 40/16 (2022.01)
CPC A61C 9/0053 (2013.01) [A61B 90/39 (2016.02); A61C 8/005 (2013.01); A61C 8/0089 (2013.01); A61C 8/0095 (2013.01); A61C 13/0004 (2013.01); G06T 7/70 (2017.01); G06V 40/166 (2022.01); G06V 40/171 (2022.01); A61B 2090/3904 (2016.02); A61B 2090/3937 (2016.02); A61B 2090/3991 (2016.02); G06T 2207/30201 (2013.01); G06T 2207/30204 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A scanning jig adapted for identifying a spatial positional relationship between a portion of a patient's facial features and an abutment, the abutment being connected to an implant body placed in a patient's jaw and having (i) an upper connecting portion comprising a top surface and (ii) a threaded hole extending downward vertically from the top surface for a prosthesis to be secured, the upper connecting portion being a female connection portion or a male connection portion, the scanning jig comprising:
a base comprising a base body being an elongated cylindrical or polygonal prismatic tube having an upper end region and a lower end region and a base connecting portion below the lower end region of the base body, the base connecting portion being a male connection portion when the upper connecting portion of the abutment is a female connection portion or being a female connection portion when the upper connecting portion of the abutment is a male connection portion, the base connecting portion being configured to engage the upper connecting portion of the abutment and comprising a stepped through hole extending downward vertically through the base body and the base connecting portion, the stepped through hole adapted for removable connection of the base to the threaded hole in the abutment by a screw, the stepped through hole being the sole stepped through hole through the base;
a scan target having a scan area adapted for being scanned by a 3D scanner capable of scanning a portion of the patient's facial features and the scan area; and
a connecting portion connecting the base and the scan target, the connecting portion comprising an elongated bar having a first end attached to the upper end region of the base body and a second end attached to the scan target and having a predetermined length such that, when the base is connected to the abutment, the scan target is positioned outside the patient's mouth,
wherein the stepped through hole is configured to guide the screw that is screwed into the abutment and is positioned on the same axis as the threaded hole of the abutment when the base connecting portion is secured to the abutment by the screw,
wherein the spatial positional relationship includes the positional relationship between a portion of the patient's facial features and the orientation of the threaded hole in the abutment.