METHOD AND SYSTEM FOR PLANNING A MEDICAL PROCEDURE AND GENERATING DATA RELATED TO SAID MEDICAL PROCEDURE

• US 20110010187A1
• Filed: 09/12/2008
• Published: 01/13/2011
• Est. Priority Date: 09/12/2007
• Status: Abandoned Application

• Current Assignee: Nobel Biocare Services AG (Envista Holdings Corporation)
• Original Assignee: Nobel Biocare Services AG (Envista Holdings Corporation)
• Inventors: Kero, Timo, Odhe, Lina, Andersson, Matts
• Application Number:
  US12/678,137
• Publication Number:
  US 20110010187A1
• Time in Patent Office: Days
• US Class Current: 705/2
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61C 1/084 of implanting tools
• CPC Class Codes: G16H 20/40 relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 70/20 relating to practices or guidelines

Abstract

A computer-implemented method comprising virtual planning a medical procedure of a patient and/or generating data based on said virtual planning for subsequent use in production of a medical product devised for use in said medical procedure. The method comprises variation simulating a virtual assembly process of the medical procedure. In this manner robustness of the medical procedure is improved.

Claims

1. A computer-implemented method comprising

virtual planning of a medical procedure of a patient, using a computer system, which medical procedure comprises an assembly process;

and

generating data based on said virtual planning, using a computer system, wherein said data is configured at least

for subsequent use in production of a medical product, which medical product is devised for use in said medical procedure, or

for controlling a device configured to facilitate said medical procedure; and

variation simulating, using a computer system, at least a virtual assembly process at least partly corresponding to said assembly process of said medical procedure.

2. The method according to claim 1, further comprising using a result of said variation simulation for a process optimization of a design concept of said medical procedure or for a re-design of said virtual assembly process.

3. The method according to claim 2, further comprising performing a sensitivity analysis, for identifying sensitive product parameters in said design concept onto which the medical procedure and the medical products or related medical products are based, and for said process optimization of said design concept of said medical procedure.

4. The method according to claim 3, wherein said performing said sensitivity analysis comprises performing said variation simulation using an equal tolerance distribution for input parameters of said variation simulation of said assembly process.

5. The method according claim 1, further comprising

performing a contribution analysis of input parameters of said assembly process, comprising

identifying an input parameter having the largest geometrical variation contribution to a final geometrical variation of said assembly process;

and

determining an optimization of said assembly process based on a modification of said input parameter having the largest geometrical variation contribution.

6. The method according to claim 5, wherein said performing said variance simulation is carried out by using unique tolerances for each input parameter of said variation simulation.

7. The method according to claim 1, said virtual planning of said medical procedure comprising customizing said medical product for said patient, said method further comprising using a result of said variation simulation for verification of said virtual assembly process of said customized medical product in said medical procedure.

8. The method claim 1, further comprising verification of said planning of said medical procedure based on said variation simulating, and re-planning said medical procedure based on the result of said verification.

9. The method claim 1, wherein said assembly process comprises virtually replacing a body part with said medical product, virtually temporarily anchoring said medical product to an existing body portion, or virtually fixating said medical product to an existing body portion.

10. The method according to claim 1, wherein virtual planning comprises virtually planning a guided surgery.

11. The method according to claim 10, wherein virtually planing said guided surgery comprises virtual planning of surgical template based dental guided surgery.

12. The method according to claim 10, wherein virtually planing said guided surgery comprises virtual planning of framebased stereotactic surgery.

13. The method according to any of claim 1, wherein said assembly process comprises replacement of a hip joint with a hip prosthesis.

14. The method according to any of claim 1, wherein said assembly process comprises bone grafting.

15. The method according to any of claim 1, wherein said assembly process comprises assembling of knee joint implants, artificial or replacement vertebrae, artificial shoulder implants, artificial joint replacement implants, or maxillofacial reconstructions.

16. The method according to claim 1, comprising identifying a plurality of product parameters that affect a final result of said assembly process and assigning each of said identified product parameters a tolerance.

17. The method according to claim 1, wherein said variation simulation comprises iteratively repeating said virtual assembly process of said medical procedure.

18. The method according to claim 1, wherein said variation simulation is Monte Carlo based simulation.

19. The method according to claim 1, further comprising performing a statistical analysis of a result of said variation simulation.

20. The method according to claim 1, wherein said medical product is a surgical template comprising a sleeve for receiving a surgical drill.

21. The method according to claim 1, wherein said medical product is a dental implant.

22. The method according to claim 21, wherein said dental implant has the form a root of a tooth.

23. The method according to claim 1, wherein said generating data is a function of said planning of said medical procedure.

24. The method according to claim 23, wherein said medical product is a surgical template comprising a sleeve for receiving a surgical drill and wherein said data comprises data for production of said surgical template, said data comprising data for an orientation and position of said sleeve relative said surgical template as a function of a dental implant positioned during said virtual planning of said medical procedure.

25. The method according to claim 24, wherein said assembly process comprises

positioning said surgical template in an oral cavity of said patient;

affixing said surgical template to said patient by means of at least one anchor pin;

drilling at least one hole with a surgical drill guided by said sleeve;

inserting at least one dental implant into said at least one hole, guided by said sleeve.

26. The method according to claim 1, wherein said medical product is a coping and said assembly process comprises affixing said coping to a dental preparation or a dental implant connection interface.

27. A system for planning a medical procedure of a patient, said system comprising

a unit for virtual planning of the medical procedure of the patient, which medical procedure comprises an assembly process;

and

a unit for generating data based on said virtual planning, wherein said data is configured at least

for subsequent use in production of a medical product, which medical product is devised for use in said medical procedure, or

for controlling a device configured to facilitate said medical procedure; and

a unit for variation simulating at least a virtual assembly process at least partly corresponding to said assembly process of said medical procedure.

28. A computer readable medium for planning a medical procedure of a patient, said computer-readable medium containing instructions, said instructions operable to execute on a computer system, said instructions when executing on the computer system performing a method comprising:

virtual planning of a medical procedure of a patient, which medical procedure comprises an assembly process; and

generating data based on said virtual planning, wherein said data is configured at least

for subsequent use in production of a medical product, which medical product is devised for use in said medical procedure, or

for controlling a device configured to facilitate said medical procedure; and

variation simulating at least a virtual assembly process at least partly corresponding to said assembly process of said medical procedure.

29. (canceled)

30. A medical workstation for comprising hardware configured to perform a method comprising:

virtual planning a medical procedure of a patient; and

generating data based on said virtual planning for subsequent use in production of a medical product devised for use in said medical procedure,

said medical workstation comprising

a unit for variation simulating a virtual assembly process of said medical procedure.

31. A computer-implemented method for planning a medical procedure of a patient, said method comprising:

presenting, using a computer system, a graphical user interface, on a display attached to the computer system, for virtual planning a medical procedure comprising a virtual assembly process of a medical product in said medical procedure,

said user interface comprising an indicator for the robustness of said assembly process.