Patient selectable joint arthroplasty devices and surgical tools

• US 9,220,517 B2
• Filed: 01/20/2011
• Issued: 12/29/2015
• Est. Priority Date: 02/06/2006
• Status: Active Grant

• Current Assignee: Conformis Incorporated
• Original Assignee: Conformis Incorporated
• Inventors: Lang, Philipp, Fitz, Wolfgang
• Primary Examiner(s): Philogene, Pedro
• Application Number:
  US13/010,299
• Publication Number:
  US 20110319900A1
• Time in Patent Office: 1,804 Days
• Field of Search: 606/87, 606/88, 606/89, 606/86.R, 606/96, 606/80, 623/22.2, 623/20.35, 623/23.42, 623/20.14, 600/429, 600/439, 600/424, 600/426, 600/407, 600/443
• 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 joint arthroplasty system for repairing a joint of a patient, the system comprising:

a surgical instrument kit comprising;

a first template, the first template including;

(i) a first contact surface substantially conforming to and for engaging a first joint surface of the joint of patient; and

(ii) a first guide for directing movement of a surgical instrument;

a second template, the second template including;

(i) a second contact surface substantially conforming to and for engaging a second joint surface of the joint of the patient; and

(ii) a second guide for directing movement of a surgical instrument; and

a linkage for cross-referencing a first cut created by the first template and a second cut created by the second template; and

one or more implant components for the joint of the patient.

2. The system of claim 1, wherein the one or more implant components are selected for the patient from pre-existing implant components.

3. The system of claim 2, wherein the selected one or more implant components are further shaped based on the image data of the joint of the patient.

4. The system of claim 1, wherein the one or more implant components designed for the patient using the image data of the joint of the patient.

5. The system of claim 1, wherein the joint of the patient is a knee joint, a shoulder joint, an ankle joint, a hip joint, or a wrist joint of the patient.

6. The system of claim 1, wherein the first cut comprises a bone cut.

7. The system of claim 1, wherein the first cut comprises a drilled hole.

8. The system of claim 1, wherein the first contact surface and the second contact surface are on the same articular side of the joint.

9. The system of claim 1, wherein the first contact surface and the second contact surface are on opposing articular sides of the joint.

10. The system of claim 1, wherein the linkage comprises a member of the following group:

a spacer, a hinge or a rachet-like device.

11. The system of claim 1, wherein the linkage is configured to indirectly cross-reference the first cut and the second cut.

12. A method of joint arthroplasty for repairing a hip, shoulder or ankle joint of a patient, the method comprising:

(a) positioning at least one contact surface of a first template onto a first joint surface, the first template substantially conforming to said first joint surface;

(b) cross-referencing a second template to the first template to align position of the second template on a second joint surface, the second joint surface opposing the first joint surface, the second template including at least one guide; and

(c) directing movement of a surgical instrument using the at least one guide.

13. The method according to claim 12, wherein the cross-referencing is performed using a member of the following group:

a spacer, a hinge or a rachet-like device.

14. The method according to claim 13, wherein the spacer, hinge or rachet-like device is used for ligament balancing.

15. The method according to claim 12, wherein the cross-referencing step includes indirectly cross-referencing the second template to the first template.