METHODS AND SYSTEMS FOR OPTIMIZING DESIGN AND MANUFACTURE OF IMPLANT COMPONENTS USING SOLID FREEFORM FABRICATION

• US 20140086780A1
• Filed: 09/20/2013
• Published: 03/27/2014
• Est. Priority Date: 09/21/2012
• Status: Active Grant

• Current Assignee: Conformis Incorporated
• Original Assignee: Conformis Incorporated
• Inventors: Dion, Ernest A., Miller, Bob, Hesketh, David
• Granted Patent: US 9,849,019 B2
• Time in Patent Office: Days
• US Class Current: 419/1
• CPC Class Codes: A61F 2/30942 for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
• CPC Class Codes: A61F 2002/30962 using stereolithography
• CPC Class Codes: A61F 5/01 Orthopaedic devices, e.g. splints, casts or braces
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing

Abstract

Disclosed are methods and systems for improving the quality, throughput and efficiency of Solid Free Form manufacture of implant components.

Claims

1. A method of manufacturing a plurality of orthopedic implant components, the method comprising:

providing a design for a first implant component having at least one dimension that is based on patient-specific information and a design for a second implant component having at least one dimension that is based on patient specific information;

creating a build plan that includes a position and orientation for at least each of the first and second implant components within a build chamber of a solid freeform fabrication machine and with respect to a platform of the build chamber; and

producing the implants included in the build plan by executing a build run of the solid freeform fabrication machine based on the build plan.

2. The method of claim 1, wherein the first and second implant components comprise femoral implant components and each has a medial-lateral width.

3. The method of claim 2, wherein the medial-lateral width of the first implant component is different than the medial-lateral width of the second implant component.

4. The method of claim 2, wherein, according to the build plan, a medial side edge of the first implant component faces the platform and a lateral side edge of the second implant component faces the platform.

5. The method of claim 1, wherein creating the build plan comprises optimizing an alignment of each of the first and second implant components with respect to one or more components of the solid freeform manufacturing machine selected form the group of components consisting of a laser, a powder depositor and leveler, and a powder bed.

6. The method of claim 1, wherein, according to the build plan, each of the first and second implant components are aligned in the same direction with respect to a powder depositor and leveler of the solid freeform manufacturing machine.

7. The method of claim 1, further comprising providing a design for a third implant component, wherein, according to the build plan, at least a portion of the second implant is positioned in the build plan between the first implant component and the third implant component, the third implant component is oriented in the same direction as the first implant component within the build chamber, and the second implant component is oriented in a different direction than the first implant component within the build chamber.

8. The method of claim 1, wherein the plurality of implant components are positioned and oriented in an interleaved build configuration according to the build plan.

9. The method of claim 1, wherein the first implant component comprises a femoral implant component and the second implant component comprises a tibial implant component.

10. The method of claim 1, wherein, according to the build plan, melt layers of the solid freeform fabrication machine are aligned essentially parallel to a plane that is perpendicular to a cephalad-caudad axis of the first and second implant components.