NEURO-DRILL-STENCIL TRAINER

Abstract

A neuro-drill stencil trainer for demarcation of drilling on flat and curved bones comprises: i) one flat stencil which further comprises: a flat base (5), outer region (1), inner region (2), four slots (3) to define constrained region for drilling procedure, a handle (4) placed on the center region, to firmly hold the stencil at stationary position and ii) one curved stencil further comprises curved base (6), outer circles (7), inner circles (8), slots (9) and handle (10).

Claims

1. A neuro-drill stencil trainer for demarcation of drilling on flat and curved bones comprises: i) one flat stencil which further comprises: a flat base (5), outer region (1), inner region (2), four slots (3) to define constrained region for drilling procedure, a handle (4) placed on the center region to firmly hold the stencil at stationary position and ii) one curved stencil further comprises curved base (6), outer circles (7), inner circles (8), slots (9) and handle (10).

2. The neuro-drill stencil trainer for demarcation of drilling on flat and curved bones as claimed in claim 1, wherein said stencil is made up of rubber like polymer for providing demarcation of burr holes for drilling.

3. The neuro-drill stencil trainer for demarcation of drilling on flat and curved bones as claimed in claim 1, wherein said slots (3) are rectangular in shape of 24×2 mm size.

4. The neuro-drill stencil trainer for demarcation of drilling on flat and curved bones as claimed in claim 1, wherein said outer region further comprises four holes (1) of 3 mm diameter at the four corners to provide reference markings for evaluation of the performed activity.

5. The neuro-drill stencil trainer for demarcation of drilling on flat and curved bones as claimed in claim 1, wherein said inner region further comprises of four holes (2) each having 2.5 mm diameter specify the location for making burr holes.

6. The neuro-drill stencil trainer for demarcation of drilling on flat and curved bones as claimed in claim 1, wherein said handle (4 and 10) comprises a flat base design for flat bones and a curved base design for curved bones so that proper contact on the surface of bone can achieved.

7. The method of drilling with the neuro drill stencil trainer as claimed in claim 1, comprises producing burr-holes on the inner four markings by performing circular and semicircular motions of the drill bit and the rectangular slots are made in between these burr holes starting from top left to top right, top right to bottom right, bottom right to bottom left and bottom left to top left directions.

8. The method of drilling with the neuro drill stencil trainer as claimed in claim 7, wherein drilling is performed in the diagonal direction starting from top left to bottom right marking and followed by bottom left to top right.

9. The method of drilling with the neuro drill stencil trainer as claimed in claim 7, can be recorded using a microscope and subjected to offline analysis.

10. The neuro-drill stencil trainer or demarcation of drilling on flat and curved bones as claimed in claim 1, as disclosed herein is supported by the accompanying drawings.

Description

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS

[0023] FIG. 1 is an isometric view of the flat stencil

[0024] FIG. 2 is the top view of the flat stencil

[0025] FIG. 3 is the isometric view of the curved stencil

[0026] FIG. 4 is the top view of the curved stencil

DETAILED DESCRIPTION OF THE ACCOMPANYING DRAWINGS

[0027] The present invention relates to microscopic high speed drilling training for neurosurgical procedures. One aspect of the invention is to provide rubber stencils for providing demarcation of burr holes for drilling with diamond match head and cutting match head drill bits of brand X on curved and flat bones. Another aspect of the invention is provide a constrained operating area to the trainees and to practice precise, straight and controlled movements of drill bit under microscopic magnification.

[0028] Embodiment consists of a demarked outer region for evaluation of the performed activity. The activity is constrained in this region and consists of making four burr holes, four edge lines and two diagonal lines. Yet another aspect of the invention is to record the performed activity using microscope output of brand Y on a computer. These recordings can be used for offline analysis of the effectiveness of performed activity.

[0029] FIG. 1, depicts the isometric view of the flat stencil made up of rubber like polymer with flat base 5, outer circles 1, inner circles 2, slots 3 and handle 4. FIG. 2 shows the top view of flat stencil with outer region comprising of four rectangular slots 3 of 24×2 mm to define constrained region in which the drilling procedure is to be performed, four holes 1 of 3 mm diameter at the four corners to provide reference markings for evaluation of the performed activity. The inner region of stencil comprises of four holes 2 of 2.5 mm diameter to specify the location to make burr holes on the curved and flat bones. A handle 4 is placed on the center region to firmly hold the stencil, while marking. FIG. 3 depicts the isometric view of stencil curved at 10 degrees to match the curvature of curved bones. Similarly FIG. 4 shows the top view of curved stencils depicting with curved base 6, outer circles 7, inner circles 8, slots 9 and handle 10.

[0030] Drilling procedure is divided into three activities: burr hole activity, edge line activity and diagonal line activity. Match head cutting drill bit is used for rough drilling at lower magnification (4.25×) and match head diamond drill bit is used for fine drilling at higher magnification (7.08×) of the operating microscope. Procedure starts by making burr holes on the inner four markings by performing circular and semicircular motions of the drill bit. Then rectangular slots are made in between these burr holes starting from top left to top right, top right to bottom right, bottom right to bottom left and bottom left to top left directions. Then the drilling is performed in the diagonal direction starting from top left to bottom right marking and followed by bottom left to top right.