Augmented visualization during surgery

Patent metadata

Field	Value
Publication number	US-11275249-B2
Application number	US-202017032729-A
Country	US
Kind code	B2
Filing date	Sep 25, 2020
Priority date	Mar 1, 2016
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

An example augmented reality (AR) system can include a frame, a lens attached to the frame, and a plurality of cameras attached to the frame. The cameras can be configured to record a real-time image. Optionally, the real-time image can include a portion of a subject's body and/or one or more surgical instruments. Additionally, the AR system can include a plurality of inertial measurement units, where a respective inertial measurement unit is attached to each respective camera. Optionally, the AR system can be configured to display image data (e.g., medical image data) registered and superimposed on the real-time image as seen by the user of the AR system.

First claim

What is claimed:

1. An augmented reality (AR) system, comprising:
a frame;
a lens attached to the frame;
a plurality of cameras attached to the frame, wherein the cameras are configured to record a real-time image; and
a plurality of inertial measurement units, wherein a respective inertial measurement unit is attached to each respective camera; and
a computing device including a processor and a memory operably coupled to the processor, wherein the memory has computer-executable instructions stored thereon that, when executed by the processor, cause the processor to:
receive a respective signal from each of the inertial measurements units;
calculate a respective pose of each of the cameras relative to a reference coordinate system; and
apply a correction to the real-time image based on the respective pose of each of the cameras.

2. The AR system of claim 1 , further comprising a plurality of light-emitting or light-reflecting elements, wherein a respective set of light-emitting or light-reflecting elements is attached to each respective camera.

3. The AR system of claim 1 , further comprising a plurality of light-detecting elements, wherein a respective set of light-detecting elements is attached to each respective camera.

4. The AR system of claim 1 , wherein each inertial measurement unit comprises at least one of a gyroscope, an accelerometer, or a magnetometer.

5. The AR system of claim 1 , wherein the memory has computer-executable instructions stored thereon that, when executed by the processor, cause the processor to receive a respective signal from each of the cameras.

6. The AR system of claim 1 , wherein the frame comprises a flexible material.

7. The AR system of claim 6 , wherein the lens is at least partially transparent.

8. The AR system of claim 1 , wherein the cameras are arranged in a spaced apart relationship on the frame.

9. The AR system of claim 8 , wherein a respective field of view of each of the cameras intersect with one another.

10. The AR system of claim 1 , further comprising at least one of a speaker or microphone.

11. An augmented reality (AR) system, comprising:
a frame;
a lens attached to the frame;
a plurality of cameras attached to the frame, wherein the cameras are configured to record a real-time image, wherein the real-time image includes a portion of a subject's body;
a plurality of inertial measurement units, wherein a respective inertial measurement unit is attached to each respective camera; and
a computing device including a processor and a memory operably coupled to the processor wherein the memory has computer-executable instructions stored thereon that, when executed by the processor, cause the processor to:
receive image data related to the portion of the subject's body;
register the image data with the real-time image;
track pose changes of an object of interest in real time;
update the image data based on the tracked pose changes of the object of interest; and
merge the updated image data with the real-time image.

12. The AR system of claim 11 , wherein the image data comprises two-dimensional or three-dimensional image data.

13. The AR system of claim 11 , wherein the image data comprises magnetic resonance image (MRI), computed tomography (CT), ultrasound, or fluoroscopic image data.

14. The AR system of claim 11 , wherein the image data includes an anatomic structure, a virtual anatomic model, a virtual surgical instrument, a virtual surgical planning trajectory or angle, a template, or a surgical target relative to an anatomic structure.

15. The AR system of claim 14 , wherein the anatomic structure is at least one of a blood vessel, a nerve, or a bone.

16. The AR system of claim 14 , wherein the anatomic structure is not visible in a surgical field.

17. The AR system of claim 14 , wherein memory has computer-executable instructions stored thereon that, when executed by the processor, cause the processor to enhance the anatomic structure.

18. The AR system of claim 11 , wherein the image data is registered with the real-time image based on a fiducial marker that appears in the image data and the real-time image.

19. The AR system of claim 11 , wherein the image data is registered with the real-time image using a registration algorithm.

20. The AR system of claim 11 , further comprising an optical projector attached to the frame or the lens, wherein the optical projector is configured to project the image data onto the lens.

21. The AR system of claim 20 , wherein the lens comprises a waveguide.

22. The AR system of claim 11 , wherein the memory has computer-executable instructions stored thereon that, when executed by the processor, cause the processor to:
receive pose data related to a surgical instrument or an anatomic feature relative to the portion of the subject's body;
update the image data in real-time with the pose data; and
register the updated image data with the real-time image.

23. The AR system of claim 22 , wherein the pose data is obtained by an optical or electromagnetic (EM) tracking system.

24. The AR system of claim 22 , wherein the pose data is obtained by tracking, using the cameras, one or more fiducial markers appearing in the real-time image.

25. The AR system of claim 22 , further comprising an optical projector attached to the frame or the lens, wherein the optical projector is configured to project the registered image data onto the lens.

26. The AR system of claim 25 , wherein the lens comprises a waveguide.

27. The AR system of claim 22 , further comprising a display attached to the frame or the lens, wherein the display is configured to show the registered image data.

Assignees

• Mirus Llc

Inventors

• Yadav Jay
• Singh Angad

Classifications

• G06F3/012 Primary

  Head tracking input arrangements · CPC title

• G02B2027/0141

  characterised by the informative content of the display · CPC title

• A61B34/10

  Computer-aided planning, simulation or modelling of surgical operations · CPC title

• G02B2027/0178

  Eyeglass type (eyeglass details G02C) · CPC title

• G06F3/14

  Digital output to display device {; Cooperation and interconnection of the display device with other functional units} · CPC title