1. Mark Bocce ball at the super pole
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2. Make another mark 3cm and 6cm from the superior pole along the circumference
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3. Draw a 3cm line perpendicular to the long axis at the 3cm point
4. Drill a hole straight down into the superior pole using a 3/8’’ drill bit to a depth of approximately 4 cm.
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5. Rotate ball so that the 6 cm mark is now the superior-most point.
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6. Without rotating the ball further, shift entire base so that the drill bit is aligned with the 3 cm mark. Drill a hole straight down using a 1/4’’ drill bit until it intersects and slightly passes the lumen of the first hole, about 6 cm in depth.
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7.Drill 1 hole on either side of this hole along the pre-drawn line
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8.Connect the lumens of these holes by slowly shaving laterally with the drill press
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Note: The length of the slit opening should be the same size as the shortest dimension on your wooden or plastic slide
5. Insert plastic/wooden slide into slit opening.
6. With the 3/8’’ drill bit, drill through the superior pole to make a hole in the slide.
5. Insert plastic/wooden slide into slit opening.
6. With the 3/8’’ drill bit, drill through the superior pole to make a hole in the slide.
7. Load the tympanic membrane onto the slide and it's ready for use
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Completed model with slide inserted, speculum inserted on top, curved pick, myringotomy knife, cupped forceps, and ear tube arranged next to it.
Student placing a myringotomy tube on the simulation model
View from under the microscope placing a myringotomy tube on the simulation model