Kinematic and parameterized modeling for patient-adapted implants, tools, and surgical procedures

Patent metadata

Field	Value
Publication number	US-11229519-B2
Application number	US-202016822865-A
Country	US
Kind code	B2
Filing date	Mar 18, 2020
Priority date	Mar 15, 2013
Publication date	Jan 25, 2022
Grant date	Jan 25, 2022

Abstract

Patient-adapted articular repair systems, including implants, instruments, and surgical plans, and methods of making and using such systems, are disclosed herein. In particular, various embodiments include methods of selecting and/or designing patient-adapted surgical repair systems using parameterized models and/or multibody simulations.

First claim

What is claimed is:

1. A method of producing a system for treatment of a joint of a patient, the system including an implant and a jig, the method comprising:
receiving preoperative patient-specific image data of the joint;
performing a first segmentation of at least a portion of the patient-specific image data to create a first model of one or more surfaces of the joint;
performing a shape search of a case database of pre-existing implant designs;
selecting the original implant design from the case database of pre-existing implant designs that is a best fit with the model;
performing a second segmentation of a select local portion of the patient-specific image data to create a refined model of at least a portion of a surface of the joint;
designing a personalized jig based, at least in part, on the refined model;
manufacturing the personalized jig;
providing an implant based on the original implant design; and
packaging the personalized jig with the implant.

2. The method of claim 1 , wherein providing includes modifying the original implant design to improve fit with the first model.

3. The method of claim 1 , wherein providing includes modifying the original implant design based, at least in part, on the refined model.

4. The method of claim 1 , wherein the implant is based on the original implant design without modification.

5. The method of claim 1 , wherein the select local portion of the patient-specific image data is a subset of the at least a portion of the patient-specific image data upon which the first segmentation was performed.

6. The method of claim 1 , further comprising:
receiving preoperative patient-specific ligament information;
performing a multibody simulation based, at least in part, on the selected original implant design and the patient-specific ligament information.

7. The method of claim 6 , wherein providing includes modifying the original implant design based on results from the multibody simulation.

8. The method of claim 6 , wherein the implant is based on the original implant design without modification.

Assignees

• Conformis Inc

Inventors

• Radermacher Klaus
• Steines Daniel

Classifications

• A61B2017/00526

  Methods of manufacturing · CPC title

• G05B2219/35134

  3-D cad-cam · CPC title

• A61B34/10

  Computer-aided planning, simulation or modelling of surgical operations · CPC title

• A61F2002/30955

  using finite-element analysis · CPC title

• A61B2034/105

  Modelling of the patient, e.g. for ligaments or bones · CPC title