Method for assigning digital image information to the navigational data of a medical navigation system

• US 7,587,235 B2
• Filed: 05/16/2002
• Issued: 09/08/2009
• Est. Priority Date: 01/18/2002
• Status: Active Grant

• Current Assignee: Brainlab AG, Instrumentarium Imaging Ziehm GmbH
• Original Assignee: Brainlab AG
• Inventors: Zeiss, Mario, Lang, Helmar Werner, Ritter, Alf, Kreuzer, Klaus-Peter, Wist, Henrik, Strobel, Jorg Peter, Rotermund-Buwen, Hanna
• Primary Examiner(s): Casler; Brian
• Assistant Examiner(s): Mehta; Parikha S
• Application Number:
  US10/150,877
• Publication Number:
  US 20030139670A1
• Time in Patent Office: 2,672 Days
• Field of Search: 600/414, 600/417, 600/426, 600/429, 600/407, 600/424, 606/130
• US Class Current: 600/425
• CPC Class Codes: A61B 2034/2055 Optical tracking systems
• CPC Class Codes: A61B 2034/2072 Reference field transducer attached to an instrument or patient
• CPC Class Codes: A61B 2090/364 Correlation of different images or relation of image positions in respect to the body
• 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 90/36 Image-producing devices or illumination devices not otherwise provided for

Abstract

A method for assigning digital image information to the navigational data of a medical navigation system is provided. The method includes:

• • producing digital image information from a digital image recording device for a patient being monitored by means of the navigation system;
  • transmitting a signal from the image recording device to the navigation system when an image is produced, the signal including assignment information for assigning the image information to the navigational data which apply to the image information; and
  • transmitting the image information from the image recording device to the navigation system, wherein
  • the image information and the corresponding navigational data are assigned to each other.

Claims

1. A method for assigning digital image information to the navigational data of a medical navigation system, comprising:

producing digital image information from a digital image recording device for a patient being monitored by said navigation system;

transmitting a signal from said image recording device to said navigation system when an image is produced, said signal including assignment information for assigning said image information to navigational data which apply to said image information

transmitting said image information from said image recording device to said navigation system; and

assigning said image information and said corresponding navigational data to each other based on the signal such that the assigned image information and captured navigational data relate to substantially the same instant in time.

2. The method as set forth in claim 1, wherein said assignment information includes information which informs said navigation system that image information has been produced.

3. The method as set forth in claim 1, wherein said assignment information includes one or more items of information about said image information.

4. The method as set forth in claim 3, wherein said assignment information includes one or more of the following items of information:

an image number;

a time of image production;

or

information on properties of said image.

5. The method as set forth in claim 1, wherein said image information is transmitted as the same time as said signal is transmitted to said navigation system.

6. The method as set forth in claim 1, wherein said transmission of to the image information is delayed with respect to said transmission of the signal to said navigation system.

7. The method as set forth in claim 1, wherein successively produced image information and/or said assigned navigational data are retrievably stored.

8. The method as set forth in claim 6, wherein the time delay between the time of producing said image information and the time of capturing said navigational data for an existing data transmission system is determined prior to producing the digital image information, and the time delay is calculated when assigning said image information to said navigational data.

9. The method as set forth in claim 6, wherein the time delay between the time of transmitting said signal and the time of capturing said navigational data for an existing data transmission system is determined prior to producing the digital image information, and the time delay is calculated when assigning said image information to said navigational data.

10. The method as set forth in claim 1, wherein said digital image information includes an x-ray image or x-ray images produced by a C-arc x-ray device which digitally captures and processes said x-ray image data.

11. A program embodied on a computer readable medium for assigning digital image information to navigational data of a medical navigation system, comprising:

code that produces digital image information from a digital image recording device for a patient being monitored by said navigation system;

code that transmit a signal from said image recording deice to said navigation system when an image is produced, said signal including assignment information for assigning said image information to navigational data which apply to said image information;

code that transmits said image information from said image recording device to said navigation system; and

code that assigns said image information and said corresponding navigational data to each other based on the signal such that the assigned image information and captured navigational data relate to substantially the same instant in time.

12. An apparatus for assigning digital image information to the navigational data of a medical navigation system, comprising:

a digital image recording device that produces digital image information for a patient being monitored by said navigation system;

a signal transmission device that transmits a signal from said image recording device said to navigation system when an image is produced, said signal including assignment information for assigning said image information to navigational data which apply to said image information;

an image transmission device that transmits said image information from said image recording device to said navigation system; and

a data processing device that assigns said image information and said corresponding navigation data to each other based on the signal such that assigned image information and captured navigational data relate to substantially the same instant in time.

13. The apparatus of claim 12, wherein said assignment information includes information which informs said navigation system that image information has been produced.

14. The apparatus of claim 12, wherein said assignment information includes one or more items of information about said image information.

15. The apparatus of claim 14, wherein said assignment information includes one or more of the following items of information:

an image number;

a time of image production;

or

information on properties of said image.

16. The apparatus of claim 12, wherein successively produced image information and/or said assigned navigational data are retrievably stored.

17. The apparatus of claim 12, wherein said image recording device is a C-arc or x-ray device which digitally captures and processes x-ray image data, and said digital image information includes an x-ray image or x-ray images produced by said C-arc x-ray device.