Virtual reality add-on device for stereotactic neurosurgery
An add-on device for use in combination with a stereotactic apparatus is herein disclosed, the device including a stereotactic adapter, an optical support comprising lenses and a display support adapted to accommodate a virtual reality display. The stereotactic adapter can adapt to different commercial models of stereotactic systems, and is particularly intended for implementing a method for conducting cognitive and/or behavioral tests in subjects during neurosurgery, wherein a virtual reality stimulus is provided to said subject during awake phases of neurosurgery.
1. A stereotactic add-on device to be fixed to a head fixation device of a stereotactic apparatus comprising:
a stereotactic adapter having a frame, the stereotactic adapter configured to be fixed to the head fixation device;
an optical support having a pair of optical lenses attached to the stereotactic adapter; and
a display support attached to the stereotactic adapter, the display support configured to accommodate a virtual reality display,
wherein the optical support and the display support are movably fixed to the frame, and
wherein the frame is configured so that the optical support can slide along the frame to adjust a distance between the display support and the pair of optical lenses.
2. The stereotactic add-on device of claim 1 , further comprising:
a virtual reality display located on or within the display support.
3. The stereotactic add-on device of claim 1 , further comprising:
a fixation device configured to fix a position of the optical support and the display support along the frame.
4. The stereotactic add-on device of claim 1 , wherein the frame is configured to be attached to at least one pin support member of the stereotactic apparatus.
5. A stereotactic system comprising a stereotactic apparatus operatively connected with the stereotactic add-on device of claim 1 .
6. A method for conducting cognitive and/or behavioral tests in a subject during neurosurgery, comprising the step of providing a virtual reality stimulus to the subject during awake phases of neurosurgery through the stereotactic add-on device of claim 2 .
7. The stereotactic add-on device of claim 2 , wherein each optical lens is configured to focus and reshape pictures from the virtual reality display for a corresponding eye of a patient to which the head fixation device is affixed to.
8. The stereotactic add-on device of claim 1 , wherein each optical lens includes a fresnel lens.
9. The stereotactic add-on device of claim 1 , wherein each optical lens includes an aspheric lens.
10. The stereotactic add-on device of claim 1 , wherein each optical lens has a magnification in a range between 5× to 20× and a diameter in a range between 20 mm and 100 mm.
11. The stereotactic add-on device of claim 2 , wherein the stereotactic adapter and the frame provide for a fixed positional relationship between the optical lenses and the virtual reality display.
12. A stereotactic add-on device to be fixed to a head fixation device of a stereotactic apparatus comprising:
a stereotactic adapter configured to be fixed to the head fixation device;
an optical support having a pair of optical lenses attached to the stereotactic adapter;
a display support attached to the stereotactic adapter, the display support configured to accommodate a virtual reality display; and
a virtual reality display attached to the display support,
wherein each optical lens is configured to focus and reshape pictures from the virtual reality display for a corresponding eye of a patient to which the head fixation device is affixed to.
13. A method for conducting cognitive and/or behavioral tests in a subject during neurosurgery, comprising the step of providing a virtual reality stimulus to the subject during awake phases of neurosurgery through the stereotactic add-on device of claim 12 .
14. A stereotactic add-on device to be fixed to a head fixation device of a stereotactic apparatus comprising:
a stereotactic adapter having a frame, the stereotactic adapter configured to be fixed to the head fixation device;
an optical support having a pair of optical lenses attached to the stereotactic adapter; and
a display support attached to the stereotactic adapter, the display support configured to accommodate a virtual reality display,
wherein the optical support and the display support are movably fixed to the frame, and
wherein the stereotactic adapter and the frame provide for a fixed positional relationship between the optical lenses and the virtual reality display.