| 摘要 |
A device performs a myringotomy and includes a main body, a hollow positioning member, a cutting edge for piercing a tympanic membrane, a protective sheath and an actuator. The main body is oriented along an axis and has a proximal end, a distal end and an outer surface. The main body includes an attachment hub for receiving components that provide suction. The hollow positioning member extends at least partially along the axis, is coupled to the main body and includes a distal end. The actuator is located on the main body and is configured to move the protective sheath from a first position that surrounds the cutting edge to a second position that exposes the cutting edge and from the second position back to the first position.
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