Integrated Production of Patient-Specific Implants and Instrumentation

• US 20100217270A1
• Filed: 02/25/2010
• Published: 08/26/2010
• Est. Priority Date: 02/25/2009
• Status: Abandoned Application

• Current Assignee: Conformis Incorporated
• Original Assignee: Conformis Incorporated
• Inventors: Berg, Paula M., Polinski, Martin J.
• Application Number:
  US12/712,827
• Publication Number:
  US 20100217270A1
• Time in Patent Office: Days
• US Class Current: 606/87
• CPC Class Codes: A61B 2034/102 Modelling of surgical devices, implants or prosthesis
• CPC Class Codes: A61B 2034/108 Computer aided selection or customisation of medical implants or cutting guides
• CPC Class Codes: A61B 50/30 Containers specially adapted for packaging, protecting, dispensing, collecting or disposing of surgical or diagnostic appliances or instruments for wound clamps A61B17/10; for ligaturing clips A61B17/122; packages or dispensers for surgical gloves or finger-stalls A61B42/40
• CPC Class Codes: A61B 50/33 Trays
• CPC Class Codes: A61F 2/0095 Packages or dispensers for prostheses or other implants for intraocular lenses A61F2/1691; for dental surgery A61C19/02
• 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 2/4603 for insertion or extraction of endoprosthetic joints or of accessories thereof
• CPC Class Codes: A61F 2/4684 Trial or dummy prostheses
• CPC Class Codes: A61F 2002/30952 using CAD-CAM techniques or NC-techniques
• CPC Class Codes: A61F 2002/30962 using stereolithography
• CPC Class Codes: A61F 2310/00011 Metals or alloys

Abstract

Disclosed herein are devices, systems and methods for the automated design and manufacture of patient-specific/patient-matched orthopedic implants. While the embodiments described herein specifically pertain to unicompartmental resurfacing implants for the knee, the principles described are applicable to other types of knee implants (including, without limitation, other resurfacing implants and joint replacement implants) as well as implants for other joints and other patient-specific orthopedic applications.

Claims

1. A set of surgical instrumentation for use in a selected surgical procedure, the set comprising

a frame;

at least one individual instrument component; and

connecting means for releasably connecting said at least one individual instrument component to said frame, wherein said frame, said at least one individual instrument component and said connecting means form an integrated unit.

2. The set of surgical instrumentation of claim 1 wherein said frame and said individual instrument components are manufactured as one integrated unit.

3. The set of surgical instrumentation of claim 1 wherein the set of surgical instrumentation is disposable.

4. The set of surgical instrumentation of claim 1 wherein the selected surgical procedure is orthopedic arthroplasty.

5. The set of surgical instruments of claim 4 wherein the orthopedic arthroplasty is a knee replacement.

6. The set of surgical instruments of claim 4 wherein the orthopedic arthroplasty is a hip replacement.

7. The set of surgical instruments of claim 4 wherein the orthopedic arthroplasty is a shoulder replacement.

8. The set of surgical instruments of claim 4 wherein the orthopedic arthroplasty is an ankle replacement.

9. The set of surgical instruments of claim 1 wherein the selected surgical procedure is to be conducted on the spine, a facet joint or an intevertebral disc.

10. The set of surgical instruments of claim 1 wherein the selected surgical procedure is to be conducted on an elbow, a wrist, a hand or a finger.

11. The set of surgical instruments of claim 1 wherein the selected surgical procedure is to be conducted on a foot or a toe.

12. The set of surgical instruments of claim 1 wherein the at least one individual instrument component is patient-specific.

13. The set of surgical instruments of claim 12, further comprising at least one standard individual instrument component.

14. A set of surgical instrumentation for use in a selected surgical procedure, the set comprising

a support structure;

at least one individual instrument component; and

connecting means for releasably connecting said at least one individual instrument component to said support structure, wherein said support structure, said at least one individual instrument component and said connecting means form an integrated unit.

15. The set of surgical instrumentation of claim 14 wherein said frame and said individual instrument components are manufactured as one integrated unit.

16. The set of surgical instrumentation of claim 14 wherein the at least one individual instrument component is disposable.

17. The set of surgical instrumentation of claim 14 wherein the selected surgical procedure is orthopedic arthroplasty.

18. The set of surgical instrumentation of claim 17 wherein the orthopedic arthroplasty is a knee replacement.

19. The set of surgical instrumentation of claim 17 wherein the orthopedic arthroplasty is a hip replacement.

20. The set of surgical instrumentation of claim 17 wherein the orthopedic arthroplasty is a shoulder replacement.

21. The set of surgical instrumentation of claim 17 wherein the orthopedic arthroplasty is an ankle replacement.

22. The set of surgical instrumentation of claim 14 wherein the selected surgical procedure is to be conducted on the spine, a facet joint or an intevertebral disc.

23. The set of surgical instrumentation of claim 14 wherein the selected surgical procedure is to be conducted on an elbow, a wrist, a hand or a finger.

24. The set of surgical instrumentation of claim 14 wherein the selected surgical procedure is to be conducted on a foot or a toe.

25. The set of surgical instrumentation of claim 14 wherein the at least one individual instrument component is patient-specific.

26. The set of surgical instrumentation of claim 25, further comprising at least one standard individual instrument component.

27. A method for fabricating a set of integrated surgical instrumentation, the method comprising:

receiving a data file containing specifications of a surgical component;

designing at least one surgical instrument based on the specifications in said data file;

creating an assembly file representing the placement of at least one surgical instrument within a frame;

converting said assembly file into an STL file; and

transferring said STL file to a rapid prototyping instrument for fabrication of said set of integrated surgical instrumentation.

28. The method of claim 27 wherein the set of surgical instrumentation is configured for orthopedic surgery.

29. The method of claim 28 wherein the orthopedic surgery is joint replacement surgery.

30. The method of claim 29 wherein the joint replacement surgery is a knee replacement.

31. The method of claim 29 wherein the joint replacement surgery is a hip replacement.

32. The method of claim 29 wherein the joint replacement surgery is a shoulder replacement.

33. The method of claim 29 wherein the joint replacement surgery is an ankle replacement.

34. The method of claim 28 wherein the orthopedic surgery is to be conducted on the spine, a facet joint or an intevertebral disc.

35. The method of claim 28 wherein the orthopedic surgery is to be conducted on an elbow, a wrist, a hand or a finger.

36. The method of claim 28 wherein the orthopedic surgery is to be conducted on a foot or a toe.

37. The method of claim 27 wherein the set of surgical instrumentation is patient-specific.

38. The method of claim 27 wherein the rapid prototyping instrument performs selective laser sintering.

39. The method of claim 27 wherein the set of surgical instrumentation is disposable.

40. The method of claim 27 wherein the set of surgical instrumentation is patient-specific.

41. The method of claim 40, further comprising at least one standard individual instrument component.

42. The method of claim 27 wherein multiple sets of integrated surgical instrumentation are fabricated at the same time.

43. A method for fabricating a set of integrated surgical instrumentation, the method comprising:

receiving a data file containing specifications of a surgical component;

designing at least one surgical instrument based on the specifications in said data file;

creating an assembly file representing the connection of at least one surgical instrument to a support structure;

converting said assembly file into an STL file; and

transferring said STL file to a rapid prototyping instrument for fabrication of said set of integrated surgical instrumentation.

44. The method of claim 43 wherein multiple sets of integrated surgical instrumentation are fabricated at the same time.

45. A method for fabricating patient-specific surgical instrumentation, the method comprising:

identifying a body part for surgery;

obtaining image data of the body part to receive surgery;

deriving an electronic model of the articular surface of the surgical site;

generating a computer aided design file that includes substantially a negative of the derived articular surface;

designing at least one surgical instrument based on the specifications in said data file;

creating an assembly file representing the connection of at least one surgical instrument to a support structure;

converting said assembly file into an STL file; and

transferring said STL file to a rapid prototyping instrument for fabrication of said set of integrated surgical instrumentation.