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.

Date of Patent:
Mar. 02, 2021

Filed:

Sep. 24, 2020
Applicant:

Think Surgical, Inc., Fremont, CA (US);

Inventors:

Daniel Patrick Bonny, Fremont, CA (US);

Joel Zuhars, Fremont, CA (US);

Michael E. Hoppe, Fremont, CA (US);

Assignee:

THINK SURGICAL, INC., Fremont, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 34/10 (2016.01); A61B 34/20 (2016.01); A61B 34/30 (2016.01); A61B 17/15 (2006.01); A61B 17/16 (2006.01); A61B 17/17 (2006.01); A61F 2/38 (2006.01); A61F 2/46 (2006.01); A61F 2/30 (2006.01);
U.S. Cl.
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);
Abstract

A method for removing an implant attached to a bone during revision joint replacement surgery includes a library of implant models. A series of surface points are collected on the implant with a digitizer. A best match is computed between the collected surface points and an implant model in the library of implant models to register the position of the implant model to the implant. A location is computed of a material-implant interface based on the geometry of the implant model and the registered position of the implant model. Material is removed at the material-implant interface to separate the implant from the bone. A computer-assisted surgical system is provided for performing the method.


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