US 11,986,255 B2
Registration for computer-assisted revision arthroplasty
Daniel P. Bonny, Fremont, CA (US); Joel Zuhars, Fremont, CA (US); and Michael E. Hoppe, Fremont, CA (US)
Assigned to Think Surgical, Inc., Fremont, CA (US)
Filed by Think Surgical, Inc., Fremont, CA (US)
Filed on Feb. 2, 2021, as Appl. No. 17/165,093.
Application 17/165,093 is a continuation in part of application No. 17/030,644, filed on Sep. 24, 2020, granted, now 10,932,866.
Application 17/030,644 is a continuation in part of application No. 16/215,055, filed on Dec. 10, 2018, granted, now 10,806,517, issued on Oct. 20, 2020.
Application 16/215,055 is a continuation of application No. 15/532,284, granted, now 10,194,991, issued on Feb. 5, 2019, previously published as PCT/US2015/064258, filed on Dec. 7, 2015.
Claims priority of provisional application 62/088,896, filed on Dec. 8, 2014.
Prior Publication US 2021/0153946 A1, May 27, 2021
Int. Cl. A61B 34/10 (2016.01); A61B 17/15 (2006.01); A61B 17/16 (2006.01); A61B 17/17 (2006.01); A61B 34/20 (2016.01); A61B 34/30 (2016.01); A61F 2/38 (2006.01); A61F 2/30 (2006.01); A61F 2/46 (2006.01)
CPC A61B 34/20 (2016.02) [A61B 17/154 (2013.01); A61B 17/1675 (2013.01); A61B 17/1703 (2013.01); A61B 17/1764 (2013.01); A61B 34/10 (2016.02); A61B 34/30 (2016.02); A61F 2/389 (2013.01); A61B 17/15 (2013.01); A61B 2034/102 (2016.02); A61B 2034/104 (2016.02); A61F 2002/3069 (2013.01); A61F 2002/4632 (2013.01); A61F 2002/4633 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for registering one or more surfaces associated with a bone for revision arthroplasty procedures, comprising:
digitizing, with a digitizer, a plurality of points on one or more surfaces associated with a bone after removal of an implant from the one or more surfaces associated with the bone; and
registering the position of the one or more surfaces associated with the bone with respect to a coordinate system associated with a computer-assisted surgical system by computing at least one of: i) one or more generic planes using the plurality of surface points; or ii) a best match between a known implant geometry and the plurality of surface points.