Method and Apparatus for Perspective Inversion

• US 20090262111A1
• Filed: 06/29/2009
• Published: 10/22/2009
• Est. Priority Date: 02/28/2002
• Status: Active Grant

• Current Assignee: Medtronic Navigation Incorporated (Medtronic Plc)
• Original Assignee: Surgical Navigation Technologies, Inc. (Medtronic Plc)
• Inventors: Rajpal, Monish, Haas, Micheal, Goodchild, Gordon, Simon, David A., Rutz, Greg
• Granted Patent: US 9,757,087 B2
• Time in Patent Office: Days
• US Class Current: 345/420
• 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 2090/364 Correlation of different images or relation of image positions in respect to the body
• 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 6/12 Arrangements for detecting or locating foreign bodies
• CPC Class Codes: A61B 6/4405 the apparatus being movable or portable, e.g. handheld or mounted on a trolley
• CPC Class Codes: A61B 6/4441 the rigid structure being a C-arm or U-arm
• CPC Class Codes: A61B 6/5235 combining images from the same or different ionising radiation imaging techniques, e.g. PET and CT
• CPC Class Codes: A61B 6/547 involving tracking of position of the device or parts of the device
• CPC Class Codes: A61B 6/583 using calibration phantoms

Abstract

A surgical instrument navigation system is disclosed that allows a surgeon to invert the three-dimensional perspective of the instrument to match their perspective of the actual instrument. A data processor is operable to generate a three-dimensional representation of a surgical instrument as it would visually appear from either of at least two different perspectives and to overlay the representation of the surgical instrument onto an image data of the patient. The image data and the representations can be displayed on a display.

Claims

1. A method for displaying a representation of a surgical instrument using a surgical instrument navigation system, comprising:

providing image data representative of a patient;

rendering a first three-dimensional representation of the surgical instrument as it would visually appear from a first perspective;

displaying the rendering of the surgical instrument superimposed onto the image data of the patient;

rendering a second three-dimensional representation of the surgical instrument as it would visually appear from a second perspective; and

displaying the rendering of the surgical instrument as it would visually appear from at least one of said first perspective or said second perspective that is selectable by an operator of the surgical instrument navigation system.

2. The method of claim 1 further comprises:

capturing in real-time position data indicative of the position of the surgical instrument; and

displaying the rendering of the surgical instrument superimposed onto the image data of the patient in accordance with the position data for the surgical instrument.

3. The method of claim 2 wherein displaying the representation of the surgical instrument further comprises:

selecting a perspective from which to view the representation of the surgical instrument;

rendering a representation of the surgical instrument in accordance with the selected perspective; and

displaying the representation of the surgical instrument superimposed onto the image data of the patient.

4. The method of claim 1, further comprising:

calibrating the image data to the patient.

5. The method of claim 4, wherein calibrating the image data to the patient includes transforming the image data to correct for at least one interference.

6. The method of claim 1, further comprising:

selecting a surgical instrument.

7. The method of claim 6, wherein selecting a surgical instrument includes selecting a drill.

8. The method of claim 1, further comprising:

acquiring image data of a patient.

9. The method of claim 8, wherein acquiring image date of the patent includes:

transmitting a radiation through a patient from a radiating source;

collecting an image of the patient created by the radiation with a receiver; and

detecting a radiation.

10. The method of claim 9, further comprising:

determining movement of at least one of the radiation source, receiver, the patient, or combinations thereof, when radiation is detected.

11. The method of claim 1, wherein providing image data representative of a patient includes providing a two-dimensional image data of the patient;

wherein the rendered three-dimensional representation is superimposed on the two-dimensional image data.

12. The method of claim 1, further comprising selecting characteristics for displaying the rendering of the surgical instrument.

13. The method of claim 12, wherein selecting characteristics includes selecting at least one of an orientation, a zoom amount, a rotation, or combinations thereof.