Implant and instrument morphing

• US 20070038059A1
• Filed: 05/23/2006
• Published: 02/15/2007
• Est. Priority Date: 07/07/2005
• Status: Abandoned Application

• Current Assignee: Garrett Sheffer, Lance Perry
• Original Assignee: Garrett Sheffer, Lance Perry
• Inventors: Sheffer, Garrett, Perry, Lance
• Application Number:
  US11/438,886
• Publication Number:
  US 20070038059A1
• Time in Patent Office: Days
• US Class Current: 600/407
• CPC Class Codes: A61B 2034/102 Modelling of surgical devices, implants or prosthesis
• 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 2034/2055 Optical tracking systems
• CPC Class Codes: A61B 2034/256 having a database of accessory information, e.g. including context sensitive help or scientific articles
• CPC Class Codes: A61B 2090/376 using X-rays, e.g. fluoroscopy
• 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 34/25 User interfaces for surgical systems
• CPC Class Codes: A61B 90/36 Image-producing devices or illumination devices not otherwise provided for

Abstract

A method for morphing a surgical object for a surgical navigation system is provided. The method comprises providing a tracking system and a surgical tool detectable by the tracking system. Dimensional data is collected and analyzed on the surgical object by contacting the surgical tool with the surgical object at more than one point while tracking the surgical tool with the tracking system, and the collected and analyzed dimensional data is associated with a reference model from a computer database of the tracking system. The reference model is selected and information for performing the surgery based upon the selected reference model is generated.

Claims

1. A method for morphing a surgical object for a surgical navigation system, comprising:

(a) providing a tracking system and a surgical tool detectable by the tracking system;

(b) contacting the surgical tool at more than one point on the surgical object while tracking the surgical tool with the tracking system, thereby collecting and analyzing dimensional data on the surgical object;

(c) associating the collected and analyzed dimensional data with a reference model from a computer database associated with the tracking system;

(d) selecting the reference model; and

(e) generating information for performing the surgery based upon the selected reference model.

2. The method of claim 1, wherein the surgical object comprises a surgical implant or instrument.

3. The method of claim 1, wherein the surgical object is releasably coupled to a calibration device, the calibration device being detectable by the tracking system.

4. The method of claim 1, wherein the surgical object is releasably coupled to a tracker, the tracker being detectable by the tracking system.

5. The method of claim 1, wherein the surgical object is releasably coupled to a tracked instrument or object, the tracked instrument or object being detectable by the tracking system.

6. The method of claim 1, wherein step (c) comprises modifying the dimensions of the reference model to match the collected and analyzed dimensional data of the surgical object.

7. The method of claim 6, further comprising storing the modified dimensional data of the reference model in the computer database.

8. The method of claim 1, further comprising calibrating the surgical object by determining tip and axis information.

9. The method of claim 1, further comprising calibrating the surgical object by determining shape and geometry information.

10. The method of claim 1, wherein step (b) comprises exposing the surgical tool to a measurement field of the tracking system while the surgical tool contacts the surgical object.

11. The method of claim 1, further comprising generating a virtual image of the surgical object.

12. The method of claim 1, wherein the surgical tool comprises a surgical probe.

13. The method of claim 1, wherein step (d) is performed before step (b).

14. The method of claim 1, wherein a physician associates the collected and analyzed dimensional data with the reference model.

15. The method of claim 1, wherein software associates the collected and analyzed dimensional data with the reference model.

16. The method of claim 1, wherein a physician selects the reference model.

17. The method of claim 1, wherein software selects the reference model.

18. The method of claim 1, wherein the surgical information is provided by software.

19. The method of claim 1, wherein the surgical information comprises surgical planning information, anatomical resection information, sizing and rotational information, length and depth information or adjustment information for surgical devices and instruments.

20. A computer readable storage medium storing instructions that, when executed by a computer, causes the computer to perform a morphing process on a surgical object during a surgical navigation procedure, the morphing process comprising:

detecting a surgical tool with a tracking system when the surgical tool is exposed to a measurement field of the tracking system;

contacting the surgical tool at more than one point on the surgical object while tracking the surgical tool with the tracking system, thereby collecting and analyzing dimensional data on the surgical object;

associating the collected and analyzed dimensional data with a reference model from a computer database associated with the tracking system; and

generating information for performing the surgery based upon the selected reference model.

21. The computer readable storage medium of claim 20, wherein the morphing process further comprises:

generating a virtual image of the surgical object when the surgical tool is exposed to the measurement field of the tracking system;

modifying the dimensions of the reference model to match the collected and analyzed dimensional data of the surgical object; and

storing the modified dimensional data of the reference model in the computer database.

22. The computer readable storage medium of claim 20, wherein the morphing process further comprises selecting the reference model.

23. The computer readable storage medium of claim 20, wherein the morphing process further comprises calibrating the surgical object by determining tip and axis information.

24. The computer readable storage medium of claim 20, wherein the morphing process further comprises calibrating the surgical object by determining shape and geometry information.

25. The computer readable storage medium of claim 20, wherein the surgical object comprises a surgical implant or instrument.

26. The computer readable storage medium of claim 20, wherein the surgical tool comprises a surgical probe.

27. The computer readable storage medium of claim 20, wherein the surgical object is releasably coupled to a calibration device, the calibration device being detectable by the tracking system.

28. The computer readable storage medium of claim 20, wherein the surgical object is releasably coupled to a tracker, the tracker being detectable by the tracking system.

29. The computer readable storage medium of claim 20, wherein the surgical object is releasably coupled to a tracked instrument or object, the instrument or object being detectable by the tracking system.

30. A surgical navigation system, comprising:

a tracking system having a measurement field;

a surgical tool detectable by the tracking system when exposed to the measurement field;

means for collecting dimensional data from a surgical object while the surgical tool contacts the surgical object;

means for associating the surgical object with a reference model contained on a computer database;

means for selecting the reference model; and

means for generating information for performing the surgery when the reference model is selected.

31. The system of claim 30, further comprising:

means for generating a virtual image of the surgical object when the surgical tool is exposed to the measurement field of the tracking system;

means for modifying the dimensions of the reference model to match the collected dimensional data of the surgical object; and

means for storing the modified dimensional data of the reference model in the computer database.

32. The system of claim 30, further comprising calibrating the surgical object by determining tip and axis information.

33. The system of claim 30, further comprising calibrating the surgical object by determining shape and geometry information.

34. The system of claim 30, wherein the surgical object comprises a surgical implant or instrument.

35. The system of claim 30, wherein the surgical tool comprises a surgical probe.

36. The system of claim 30, wherein the surgical object is releasably coupled to a calibration device, the calibration device being detectable by the tracking system.

37. The system of claim 30, wherein the surgical object is releasably coupled to a tracker, the tracker being detectable by the tracking system.

38. The system of claim 30, wherein the surgical object is releasably coupled to a tracked instrument or object, the instrument or object being detectable by the tracking system.