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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11571279 B1

PDFFull Text
Date of Patent:
Feb. 07, 2023

Filed:

Sep. 26, 2019

Aligner damage prediction at weak spots with simulation

Applicant:

Align Technology, Inc., San Jose, CA (US);

Inventors:

Yuxiang Wang, Newark, CA (US);

Rohit Tanugula, San Jose, CA (US);

Reza Shirazi Aghjari, San Jose, CA (US);

Chunhua Li, Cupertino, CA (US);

Jun Sato, San Jose, CA (US);

Luyao Cai, San Jose, CA (US);

Kangning Su, Arlington, VA (US);

Assignee:

Align Technology, Inc., San Jose, CA (US);

Attorney:

Lowenstein Sandler LLP

Primary Examiner:

Bijan Mapar

Assistant Examiner:

Pursottam Giri

Int. Cl.
CPC ...
A61C 7/00 (2006.01); G06F 17/18 (2006.01); G06N 20/00 (2019.01); A61C 7/08 (2006.01); G06F 30/23 (2020.01); G16H 50/50 (2018.01); G01N 33/44 (2006.01); B33Y 80/00 (2015.01); A61C 9/00 (2006.01); A61C 13/34 (2006.01); B29C 33/38 (2006.01); B29C 51/30 (2006.01); G06F 30/27 (2020.01); B29C 73/00 (2006.01); G06F 30/20 (2020.01); G06F 119/18 (2020.01); G06F 113/22 (2020.01); G06F 111/10 (2020.01); B33Y 50/00 (2015.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
A61C 7/002 (2013.01); A61C 7/08 (2013.01); A61C 9/004 (2013.01); A61C 13/34 (2013.01); B29C 33/3835 (2013.01); B29C 51/30 (2013.01); B29C 73/00 (2013.01); B33Y 80/00 (2014.12); G01N 33/442 (2013.01); G06F 17/18 (2013.01); G06F 30/20 (2020.01); G06F 30/23 (2020.01); G06F 30/27 (2020.01); G06N 20/00 (2019.01); G16H 50/50 (2018.01); B29L 2031/753 (2013.01); B33Y 50/00 (2014.12); G06F 2111/10 (2020.01); G06F 2113/22 (2020.01); G06F 2119/18 (2020.01);
Abstract

Embodiments relate to an aligner breakage solution that tests probability of aligner breakage at weak points. A method includes gathering a digital model representing an aligner for a dental arch of a patient, receiving material property information for a material to be used to manufacture the aligner, and analyzing one or more regions of the aligner. Analyzing a region of the aligner comprises simulating application of a load around the region, determining at least one of a stress, a strain or a strain energy density at the region, evaluating a strength of the aligner at the region, and determining whether the region satisfies a damage criterion based on the strength of the aligner at the region.

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