Patient selectable joint arthroplasty devices and surgical tools incorporating anatomical relief

• US 9,326,780 B2
• Filed: 01/06/2014
• Issued: 05/03/2016
• Est. Priority Date: 02/06/2006
• Status: Active Grant

• Current Assignee: Conformis Incorporated
• Original Assignee: Conformis Incorporated
• Inventors: Wong, Terrance, Bojarski, Raymond A., Steines, Daniel, Lang, Philipp
• Primary Examiner(s): Philogene, Pedro
• Application Number:
  US14/148,067
• Publication Number:
  US 20140163568A1
• Time in Patent Office: 848 Days
• Field of Search: 606/85, 606/86.R, 606 87- 89, 606/96, 606/99, 295/92
• US Class Current: 1/1
• CPC Class Codes: A61B 17/154 for preparing bone for knee prosthesis
• CPC Class Codes: A61B 17/155 Cutting femur
• CPC Class Codes: A61B 17/157 Cutting tibia
• CPC Class Codes: A61B 17/158 Cutting patella
• CPC Class Codes: A61B 17/1666 for the acetabulum
• CPC Class Codes: A61B 17/1675 for the knee
• CPC Class Codes: A61B 17/1703 using imaging means, e.g. by X-rays
• CPC Class Codes: A61B 17/1746 for the acetabulum
• CPC Class Codes: A61B 17/175 for preparing the femur for hip prosthesis insertion
• CPC Class Codes: A61B 17/1778 for the shoulder
• CPC Class Codes: A61B 2017/568 produced with shape and dimensions specific for an individual patient
• CPC Class Codes: A61B 2034/102 Modelling of surgical devices, implants or prosthesis
• CPC Class Codes: A61B 2034/104 Modelling the effect of the tool, e.g. the effect of an implanted prosthesis or for predicting the effect of ablation or burring
• CPC Class Codes: A61B 2034/105 Modelling of the patient, e.g. for ligaments or bones
• CPC Class Codes: A61B 2034/108 Computer aided selection or customisation of medical implants or cutting guides
• CPC Class Codes: A61B 2034/2065 Tracking using image or pattern recognition
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61B 34/20 Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
• CPC Class Codes: A61B 5/4514 Cartilage
• CPC Class Codes: A61B 5/4523 Tendons
• CPC Class Codes: A61B 5/4528 : Joints A61B5/4533, A61B5/4538 take precedence
• CPC Class Codes: A61B 5/4533 : Ligaments
• CPC Class Codes: A61F 2/30756 : Cartilage endoprostheses A61F2/3603 takes precedence
• 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 2/38 : for elbows or knees
• CPC Class Codes: A61F 2/3859 : Femoral components
• CPC Class Codes: A61F 2/389 : Tibial components A61F2/3868 takes precedence
• CPC Class Codes: A61F 2/46 : Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
• CPC Class Codes: A61F 2002/3069 : Revision endoprostheses
• CPC Class Codes: B33Y 70/00 : Materials specially adapted for additive manufacturing
• CPC Class Codes: B33Y 80/00 : Products made by additive manufacturing
• CPC Class Codes: Y10T 29/49 : Method of mechanical manufacture

Abstract

Disclosed herein are methods, compositions and tools for repairing articular surfaces repair materials and for repairing an articular surface. The articular surface repairs are customizable or highly selectable by patient and geared toward providing optimal fit and function. The surgical tools are designed to be customizable or highly selectable by patient to increase the speed, accuracy and simplicity of performing total or partial arthroplasty.

Claims

1. A system for joint arthroplasty for repairing a joint of a patient, the system comprising:

a first template, the first template including;

a contact surface for engaging a first articular surface of the joint of the patient, the contact surface including shape information derived from electronic image data of at least a portion of the first articular surface;

at least a relieved portion of the contact surface further including an anatomical relief configured such that when the contact surface engages the first articular surface, the relieved portion does not engage an anatomical structure of the first articular surface; and

at least one guide for directing movement of a surgical instrument; and

wherein the guide has a predetermined orientation relative to one of an anatomical and a biomechanical axis associated with the joint of the patient.

2. The system of claim 1, wherein the at least one guide is one of a guide aperture, a reaming aperture, a drill aperture and a cut plane.

3. A method of joint arthroplasty using the system of claim 1, comprising:

engaging the contact surface of the first template with the first articular surface of the joint, and

moving the surgical instrument with the at least one guide to prepare the joint of the patient for receiving an implant.

4. The system of claim 1, wherein the joint of the patient is a knee joint, a shoulder joint, a hip joint, a vertebrae, an elbow joint, or an ankle joint.

5. The system of claim 1, wherein the anatomic relief accommodates one or more osteophytes of the joint.

6. The system of claim 1, wherein the anatomic relief accommodates an area of normal cartilage of the joint.

7. The system of claim 1, wherein the anatomic relief accommodates an area of diseased cartilage of the joint.

8. The system of claim 1, wherein the anatomic relief accommodates an area of subchondral bone of the joint.

9. The system of claim 1, wherein the anatomical structure includes a cut surface portion of the joint.

10. The system of claim 1, wherein the anatomical structure includes an uncut surface portion of the joint.

11. The system of claim 1, wherein the joint is a knee joint, and wherein the anatomical structure includes a trochlear portion of the knee joint.

12. The system of claim 1, further including one or more implant components for repairing the joint.