AudiologyOnline Phone: 800-753-2160


Oticon Medical Ponto 5 - September 2021

How Does the Lantos 3D Scanning System Work?

Lydia Gregoret, PhD, AuD

November 25, 2019

Share:

Question

How does the Lantos 3D Scanning System work?

Answer

If you're not familiar with Lantos, we make the only FDA-cleared 3D digital ear scanner. The system uses a membrane (Figure 1) that is central to the experiments we will discuss today. After loading the membrane and the solution into the scanner, you place the membrane and the camera down the ear canal. There's a clear window at the end of the membrane so you can see exactly where you're going when maneuvering the camera. On the screen, there is a yellow circle that allows you to align the annulus of the tympanic membrane (TM) to that circle, sort of like a distance gauge to indicate when you're about four to five millimeters away from the TM. 

Membrane and camera in the ear canal

Figure 1. Membrane and camera in the ear canal.

Once you've reached the correct depth with the camera, the membrane gently inflates with a red water-based solution, and then the camera retracts. The camera emits a blue light that makes the inside of the membrane glow yellow. It glows yellow because the membrane is fluorescent, and the combination of that yellow light coming back to the camera and the red solution the light passes through lets the scanner measure the distance from the camera tip to the inside surface of the membrane that's right up next to the surface of the ear. As you scan, you move the camera first around the concha, and then down the ear canal. The software then converts the 2D images to 3D and stitches them together, by a process similar to taking a panoramic photo but in 3D (Figure 2).

A collection of images like the one on the left are converted from 2D to 3D and stitched together into the complete scan

Figure 2. A collection of images like the one on the left are converted from 2D to 3D and stitched together into the complete scan.

The scanning process is shown in the following video; the person speaking is Erin Henry, our Director of Training.

Screenshot of video of the scanning process

This Ask the Expert is an excerpt from The Movin' Groovin' Outer Ear. Learn more on the Lantos Technologies Partner Page on AudiologyOnline or visit www.lantostechnologies.com


lydia gregoret

Lydia Gregoret, PhD, AuD

Lydia Gregoret is a chemist/biochemist-turned-audiologist. At Lantos Technologies, she combines her creativity, research training, chemistry skills and clinical audiology experience to help advance the world's first digital ear scanning system. Before coming to Lantos, Lydia was a clinical audiologist in Boston. Prior to that, she was a tenured faculty member at the University of California, Santa Cruz in Chemistry & Biochemistry. Lydia has also taught courses at Brandeis University and at Northeastern University. She received her PhD in Pharmaceutical Chemistry from the University of California, San Francisco, and her AuD from Northeastern University.


Related Courses

The Lantos Membrane: How it works and how to use it
Presented by Lydia Gregoret, PhD, AuD, Erin Henry, AuD
Recorded Webinar
Lantos Technologies

Presenters

Lydia Gregoret, PhD, AuDErin Henry, AuD
Course: #34797Level: Intermediate1 Hour
  'good teamwork'   Read Reviews
This course highlights the conforming membrane, a unique feature of the Lantos 3D Ear Scanning System: how it works as part of the scanning system to collect ear shape data, and how to use it. We also discuss how the membrane allows capture of ear compliance and enables design of comfortable ear pieces.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More

The Movin' Groovin' Outer Ear
Presented by Lydia Gregoret, PhD, AuD
Recorded Webinar
Lantos Technologies

Presenter

Lydia Gregoret, PhD, AuD
Course: #33467Level: Intermediate1 Hour
  'Clinical application guidelines'   Read Reviews
In this course, we’ll examine the outer ear’s compliance using data from direct ear scanning and CT scans. We’ll also discuss how compliance can inform hearing aid and earmold design and modification to create a comfortable fit.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More

Signia Earmold and Hearing Protection Options 2021
Presented by Emmalyn Loeffler, AuD
Recorded Webinar
Signia

Presenter

Emmalyn Loeffler, AuD
Course: #36132Level: Introductory0.5 Hours
  'THE VERSATILITY OF THE DIFFERENT TYPES OF MOLDS'   Read Reviews
Hearing aid fittings can be enhanced by understanding the effects of available acoustic couplings. This course will review the current earmold options offered by Signia for BTE and RIC hearing instruments and will explore hearing protection options for your patients.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More

You Are the Ear Expert
Presented by Stephanie Loccisano, AuD
Recorded Webinar
Starkey

Presenter

Stephanie Loccisano, AuD
Course: #29773Level: Intermediate1 Hour
  'Learning different options for all consumers'   Read Reviews
You truly are the ear Expert! Your scope of practice means you are the professional patients should be calling upon for everything from custom hearing aids and earmolds, to hearing protection, to sound monitors and personalized hearables. This course will provide an overview of the custom hearing aids and other personalized devices available from Starkey. These include IIC and CIC devices with Acuity Immersion, Sound Gear protection, Bragi Pro Customized by Starkey and Tunz in-ear monitors.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More

Going Beyond Best Practices: Same-Day Custom Ear Molds
Presented by Frank Talarico, MClSc
Text/Transcript
AudiologyOnline

Presenter

Frank Talarico, MClSc
Course: #36729Level: Introductory1 Hour
  'Clearly explained and honest about some limitations of material'   Read Reviews
This course discusses a new, validated, and open-source method for creating same-day ear molds. By using 3D printing, 3D scanning, and open-source software, hearing healthcare providers can go beyond professional practice guidelines to make appropriately fitting, custom ear molds.

View this Course for FREE.
Need CEUs? Become a AudiologyOnline member to get unlimited CEUs.

Only $99/yr

Learn More