There are three kinds of otoscopes for common ear canal examinations in clinical practice. One of them is the otoscope otoscope. Today, the sound of the sea hearing expert will come to you to understand.
The otoscope is a commonly used instrument for examining the external auditory canal and tympanic membrane. It is shaped like a funnel and has different caliber sizes. It is composed according to the diameter of the external auditory canal. When inspecting, the earpiece with the appropriate diameter should be selected according to the diameter of the external auditory canal. The examiner pulls the auricle in one hand to straighten the external auditory canal, and the other hand gently puts the otoscope into the external auditory canal. Because only a part of the tympanic membrane can be seen through the otoscope, the otoscope should not exceed the outer 1/3 of the external auditory canal, so that it can be moved up and down and left and right to observe the tympanic membrane. At the same time, it can avoid avoiding the deep compression of the bone. Causes pain and cough. When the left ear is examined, the left ear faces the examiner, and the examiner pulls the auricle back and up with the left thumb and the middle finger, and the vacated right hand is free to operate. After the amp is inserted, the front mirror can be used to reflect the light. When checking the right ear, the right ear faces the examiner. The examiner pulls the auricle with the left thumb and the middle pointing up, and the food points to the front tragus, so that the curved ear canal is straightened, and the right hand puts the plucking device into the external auditory canal. Use your left thumb and forefinger to fix.