Patient-adapted and improved articular implants, designs and related guide tools

Patent metadata

Field	Value
Publication number	US-9775680-B2
Application number	US-201113294623-A
Country	US
Kind code	B2
Filing date	Nov 11, 2011
Priority date	May 25, 2001
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

Methods and devices are disclosed relating improved articular models, implant components, and related guide tools and procedures. In addition, methods and devices are disclosed relating articular models, implant components, and/or related guide tools and procedures that include one or more features derived from patient-data, for example, images of the patient's joint. The data can be used to create a model for analyzing a patient's joint and to devise and evaluate a course of corrective action. The data also can be used to create patient-adapted implant components and related tools and procedures.

First claim

What is claimed is:

1. A method for designing a patient-specific implant for repairing or replacing a joint of a patient, comprising:
preoperatively obtaining patient-specific image data of the joint of the patient and designing a patient-specific implant using the patient-specific image data;
simulating, in a computer system, biomotion of the joint of the patient with the patient-specific image data and/or other patient-specific data;
deriving a patient-specific biomotion model; and
optimizing the patient-specific implant using the patient-specific biomotion model.

2. The method of claim 1 , wherein the other patient-specific data is image data.

3. The method of claim 1 , wherein the other patient-specific data is kinematic data.

4. The method of claim 1 , wherein the other patient-specific data is navigation data.

5. A method for selecting a patient-specific implant for repairing or replacing a joint of a patient, comprising:
preoperatively obtaining patient-specific image data of the joint of the patient and selecting a pre-existing implant based on the patient-specific image data;
simulating, in a computer system, biomotion of the joint of the patient with the patient-specific image data and/or other patient-specific data;
deriving a patient-specific biomotion model; and
optimizing by further shaping the selected implant using the patient-specific biomotion model.

6. The method of claim 5 , wherein the other patient-specific data is image data.

7. The method of claim 5 , wherein the other patient-specific data is kinematic data.

8. The method of claim 5 , wherein the other patient-specific data is navigation data.

Assignees

• Bojarski Raymond A
• Chao Nam T
• Slamin John
• Lang Philipp
• Fitz Wolfgang
• Steines Daniel
• Conformis Inc

Inventors

• Bojarski Raymond A
• Chao Nam T
• Slamin John
• Lang Philipp
• Fitz Wolfgang
• Steines Daniel

Classifications

• A61B2034/107

  Visualisation of planned trajectories or target regions · CPC title

• A61B17/1764

  for the knee · CPC title

• A61F2002/30952

  using CAD-CAM techniques or NC-techniques · CPC title

• A61F2/30942 Primary

  for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques · CPC title

• A61B2034/108

  Computer aided selection or customisation of medical implants or cutting guides · CPC title