Patient selectable joint arthroplasty devices and surgical tools

• US 9,084,617 B2
• Filed: 11/28/2011
• Issued: 07/21/2015
• Est. Priority Date: 05/25/2001
• Status: Active Grant

• Current Assignee: Conformis Incorporated
• Original Assignee: Conformis Incorporated
• Inventors: Lang, Philipp, Fitz, Wolfgang
• Primary Examiner(s): Philogene, Pedro
• Application Number:
  US13/305,634
• Publication Number:
  US 20120071882A1
• Time in Patent Office: 1,331 Days
• Field of Search: 606 79- 85, 606/86.A, 606/86.R, 606 87- 89, 606 96- 98
• US Class Current: 1/1
• CPC Class Codes: A61B 17/15 Guides therefor arrangements for guiding straight saw blades in general B23D51/025
• 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 17/1677 for the patella
• CPC Class Codes: A61B 17/1682 for the foot or ankle
• CPC Class Codes: A61B 17/1703 using imaging means, e.g. by X-rays
• CPC Class Codes: A61B 17/1739 specially adapted for particular parts of the body
• CPC Class Codes: A61B 17/1746 for the acetabulum
• CPC Class Codes: A61B 17/1767 for the patella
• CPC Class Codes: A61B 2017/568 produced with shape and dimensions specific for an individual patient
• 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 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 5/4504 Bones A61B5/4547 takes precedence
• 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: B33Y 80/00 : Products made by additive manufacturing
• CPC Class Codes: G06F 30/00 : Computer-aided design [CAD]
• CPC Class Codes: G06F 30/10 : Geometric CAD
• 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 surgical instrument system for use in surgically replacing or resurfacing all or part of a joint of a patient, comprising:

a body having a patient-specific surface and a guide to direct or accommodate a surgical tool;

wherein the patient-specific surface has at least a portion that is substantially a negative of a corresponding surface of the joint; and

wherein the guide has a position or orientation relative to the patient-specific surface to define a predetermined path for the surgical tool that is aligned through a portion of tissue associated with the joint when the patient specific surface is placed against and aligned with the corresponding surface of the joint, wherein the joint is a shoulder joint of the patient.

2. The surgical instrument system of claim 1, wherein the portion of the patient-specific surface is a first portion that is substantially a negative of a corresponding subchondral bone surface of the shoulder joint and the patient-specific surface further comprises:

at least a second portion that is substantially a negative of a corresponding cartilage surface of the shoulder joint,

wherein the second portion is configured to align with the cartilage surface when the first portion is placed against and aligned with the subchondral bone surface.

3. The surgical instrument system of claim 2, wherein the corresponding cartilage surface is a cartilage surface of at least a portion of a proximal humerus of the shoulder joint.

4. The surgical instrument system of claim 1, wherein the portion of the patient-specific surface is a first portion that is substantially a negative of a corresponding subchondral bone surface of the shoulder joint and the patient-specific surface further comprises:

at least a second portion that is substantially a negative of a corresponding cortical bone surface of the shoulder joint; and

wherein the second portion is configured to align with the cortical bone surface when the first portion is placed against and aligned with the subchondral bone surface.

5. The surgical instrument system of claim 4, wherein the corresponding subchondral bone surface is a subchondral bone surface of at least a portion of a proximal humerus of the shoulder joint.

6. The surgical instrument system of claim 1, wherein the portion of the patient-specific surface is a first portion that is substantially a negative of a corresponding cartilage surface of the shoulder joint and the patient-specific surface further comprises:

at least a second portion that is substantially a negative of a corresponding cortical bone surface of the shoulder joint,

wherein the second portion is configured to align with the cortical bone surface when the first portion is placed against and aligned with the cartilage surface.

7. The surgical instrument of claim 6, wherein the corresponding cartilage surface is a cartilage surface of at least a portion of a proximal humerus.

8. The surgical instrument system of claim 1, further comprising one or more implant components for repairing the shoulder joint.