US 11,925,435 B2
Intra-oral scanning device with integrated optical coherence tomography (OCT)
Ye Li, Plano, TX (US); Justin G. Graham, Wylie, TX (US); Rod A. Duncan, Lucas, TX (US); Greg R. Basile, Dallas, TX (US); Grant E. Kenworthy, Allen, TX (US); Henley S. Quadling, Dallas, TX (US); Mark S. Quadling, Plano, TX (US); and Glen Freeman, Plano, TX (US)
Assigned to D4D Technologies, LLC, Richardson, TX (US)
Filed by D4D Technologies, LLC, Richardson, TX (US)
Filed on Jun. 9, 2022, as Appl. No. 17/836,606.
Application 17/836,606 is a continuation of application No. 16/298,613, filed on Mar. 11, 2019, granted, now 11,382,517.
Prior Publication US 2022/0296103 A1, Sep. 22, 2022
Int. Cl. A61B 5/00 (2006.01); A61C 9/00 (2006.01); G01B 9/02004 (2022.01); G01B 9/02091 (2022.01); G01B 11/24 (2006.01)
CPC A61B 5/0088 (2013.01) [A61B 5/0066 (2013.01); A61C 9/0053 (2013.01); G01B 9/02004 (2013.01); G01B 9/02091 (2013.01); G01B 11/2441 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An intra-oral scanner, comprising:
a first scanner configured to operate in a first wavelength range to obtain first scan data from a surface of a target using a first optical path, the first scan data comprising a first three-dimensional image of the surface of the target, and the first scanner comprising a TIR prism comprising a first right triangle prism and a second triangle prism shaped like a wedge having angles of 90°, approximately 21°, and approximately 69°;
a second scanner configured to operate in a second wavelength range to obtain second scan data at video speed from a volume underlying the surface of the target using a second optical path, the second scan data comprising a second three-dimensional image of the volume underlying the surface of the target; and
a housing configured to support the first scanner and the second scanner;
wherein a first portion of the first optical path is common with a first portion of the second optical path; and
wherein a second portion of the first optical path is parallel to a second portion of the second optical path.