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Otitis Media with Effusion is an ear disease that requires a surgery to be performed under general anesthesia (GA) to place a grommet in the tympanic membrane for severe cases. An automated grommet insertion device, the Ventilator Tube Applicator (VTA) enables the grommet insertion surgery to be completed in a short time automatically and precisely by automating the incision and insertion process. However, its current design limits the usefulness of the device as it is restricted by the properties of the eardrum, such as the angle, thickness and strength. Therefore, a cover-cutter toolset design with three different setups was conceptualized. Experimental results on mock membrane showed that the new toolset design increased the surgical device’s success rate with a lower force on the tympanic membrane (TM), hence improving the surgical device’s overall efficiency and safety.

Novel Mechanical Design of an Ear Surgical Device to Treat Otitis Media with Effusion