Patient selectable joint arthroplasty devices and surgical tools

• US 9,241,725 B2
• Filed: 01/25/2011
• Issued: 01/26/2016
• Est. Priority Date: 11/25/2003
• Status: Active Grant

• Current Assignee: Conformis Incorporated
• Original Assignee: Conformis Incorporated
• Inventors: Lang, Philipp, Fitz, Wolfgang
• Primary Examiner(s): Philogene, Pedro
• Application Number:
  US13/013,446
• Publication Number:
  US 20110230888A1
• Time in Patent Office: 1,827 Days
• Field of Search: 606/79, 606/86.R, 606 87- 89, 606/102, 606/91, 606/80, 606/96, 600/407, 600/587, 623/22.16, 623/22.15, 623/22.12, 623/22.11, 623/22.28, 623/23.26, 623/20.28, 623/20.31, 623/17.12, 701/1, 701/11, 701/7, 295/92
• 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 system including a patient-specific surgical tool for use in surgery on a hip joint of a patient, the patient-specific surgical tool comprising:

a jig having a patient-specific surface and a guide;

the patient-specific surface being substantially a negative of a corresponding surface portion of the hip joint that includes an osteophyte, wherein the patient-specific surface has a portion having a shape that matches at least a portion of the osteophyte;

the guide providing a path having a position and orientation relative to the patient-specific surface to provide a predetermined path for a cutting or drilling or reaming or burring tool that is aligned through a portion of tissue of the hip joint.

2. The system of claim 1, further comprising one or more hip implant components.

3. The system of claim 2, wherein the one or more hip implant components includes an acetabular component.

4. The system of claim 2, wherein the one or more hip implant components includes a femoral component.

5. A system including a surgical tool for use in surgically repairing a hip joint of a patient, the surgical tool comprising:

a cutting block having a patient-specific surface and a guide;

the patient-specific surface having a first portion that is substantially a negative of at least a portion of a surface adjacent an acetabulum including an osteophyte, wherein the patient-specific surface has a portion having a shape that matches at least a portion of the osteophyte;

the guide being shaped to accommodate a surgical tool for cutting or drilling and having a position and orientation relative to the patient-specific surface to provide a predetermined cutting path for the cutting tool that is aligned through a portion of bone of the hip joint.

6. The system of claim 5, further comprising one or more hip implant components.

7. The system of claim 6, wherein the one or more hip implant components includes an acetabular component.

8. The system of claim 6, wherein the one or more hip implant components includes a femoral component.

9. A system including a surgical tool for use in surgically repairing a hip joint of a patient, the surgical tool comprising:

a block having a patient-specific surface and a guide aperture;

the patient-specific surface having a first portion that is substantially a negative of at least a portion of a surface of a femoral neck including an osteophyte, wherein the patient-specific surface has a portion having a shape that matches at least a portion of the osteophyte;

the guide aperture being sized to accommodate a surgical tool for cutting or drilling and have a position and orientation relative to the patient-specific surface to provide a predetermined cutting or drilling path for the surgical tool that is aligned through a portion of bone of the hip joint.

10. The system of claim 9, further comprising one or more hip implant components.

11. The system of claim 10, wherein the one or more hip implant components includes an acetabular component.

12. The system of claim 10, wherein the one or more hip implant components includes a femoral component.

13. A system including a surgical tool for use in surgically repairing a hip joint of a patient, the surgical tool comprising:

a block having a patient-specific surface and a guide;

the patient-specific surface having a first portion that is substantially a negative of at least a portion of a junction between a femoral head and a femoral neck including an osteophyte, wherein the patient-specific surface has a portion having a shape that matches at least a portion of the osteophyte;

the guide aperture being sized to accommodate a surgical tool for cutting or drilling and have a position and orientation relative to the patient-specific surface to provide a predetermined cutting or drilling path for the surgical tool that is aligned through a portion of bone of the hip joint.

14. The system of claim 13, further comprising one or more hip implant components.

15. The system of claim 14, wherein the one or more hip implant components includes an acetabular component.

16. The system of claim 14, wherein the one or more hip implant components includes a femoral component.

17. A system including a surgical tool for use in surgically repairing a hip joint of a patient, the surgical tool comprising:

a block having a patient-specific surface and a guide aperture;

the patient-specific surface having a first portion that is substantially a negative of at least a portion of surface of a femoral head including an osteophyte, wherein the patient-specific surface has a portion having a shape that matches at least a portion of the osteophyte;

the guide aperture being sized to accommodate a surgical tool for cutting or drilling and have a position and orientation relative to the patient-specific surface to provide a predetermined cutting or drilling path for the surgical tool that is aligned through a portion of bone of the hip joint.

18. The system of claim 17, further comprising one or more hip implant components.

19. The system of claim 18, wherein the one or more hip implant components includes an acetabular component.

20. The system of claim 18, wherein the one or more hip implant components includes a femoral component.