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The Lantos Membrane: How it works and how to use it

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1.  The Lantos 3D Ear Scanning System… is not yet FDA-cleared. can image the ear canal only. is useful for scanning infants with hearing loss. images the inside surface of a conforming membrane placed in the ear.

2.  How does one know how deep to place the camera of the Lantos 3D Scanning System in the ear? The audiologist can see the tympanic membrane and aligns an on-screen circle to the annulus at approximately 5 mm distance. The audiologist relies on the patient to yell out when the tympanic membrane is touched. There is a marking on the scanner showing 25 mm depth. There is a guide bar on the side of the screen that flashes when placement is reached.

3.  The portion of the conforming membrane that is positioned in the cymba concha is the: window pressure cuff canal nose

4.  The Lantos conforming membrane and scanning system can capture all of the following except: the helix the second bend the antihelix the antitragus

5.  Which wall of the ear canal typically shows the most displacement with jaw opening and closing? superior inferior anterior posterior

6.  Based on comparisons between Lantos scans and ear impressions, the aperture is most compliant at its: superior and inferior parts superior and posterior parts anterior and posterior parts anterior and superior parts

7.  The pink absorbing medium that fills the membrane contains: organic pomegranate juice non-toxic red dye, water, and a preservative non-toxic red dye, water, and sugar non-toxic red dye, water, and isopropyl alcohol

8.  The correct angle for the scanner in a upright-seated patient’s right ear is with the buttons of the scanner at approximately: 12 o'clock 4:30 o'clock 10 o'clock 2 o'clock

9.  Pushing on the ear while scanning or taking an impression can make a louder hearing aid straighten out the second bend compress the bony region result in an unnatural ear shape from which to model an earpiece

10.  The conforming membrane can be used for up to 4 scans, but only in one ear up to 4 scans in the same patient regardless of which ear or ears up to 4 scans in multiple patients as long as it is wiped with disinfectant up to 8 scans in a family unit