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Device Overview for the Eko CORE Digital Attachment - 1st Gen

Assemble your CORE Digital Attachment

Follow the 4-step process to attach the CORE attachment to your analog stethoscope. 

Step 1: Choosing a tubing adapter (Narrow Slim or Straight Fit) 


To achieve the best sound, select the tubing adapter that has the best fit for your analog stethoscope. 

Step 2: Detach the Chest Piece

Remove the chest piece of the analog stethoscope manually. To do this, grip the chest piece in one hand and pull the tubing with force using the other hand. This may require some force. 

Step 3: Install Eko CORE Digital Attachment

Attach the CORE Digital Attachment to one end of the Eko-compatible adapter tubing provided. 

 Step 4: Reattach Tubing and Chestpiece

Attach the tubing of your analog stethoscope to the other end of the CORE Digital Attachment. Then, insert the chest piece into the other end of the Eko-compatible adapter tubing provided. 

Test to ensure successful installation. 

Power On/Off

Power On

Press the power button to move the switch to the ON position. “ON” is when the toggle is flush with the surface of the volume buttons. The LED light on the CORE will turn on and flash white. When the CORE is ON, sounds are amplified and the device can be paired with the Eko application.

Power Off

Press the power button to move the switch to the OFF position. “OFF” is when the toggle is protruding from the surface of the volume buttons. The LED light will no longer flash on the device. When the CORE is turned OFF, there is no sound amplification and you would instead hear sounds through the analog stethoscope.

Adjust the Volume

CORE’s sound level can be amplified in 7 increments up to 40X amplification of an acoustic stethoscope. Change the volume level by clicking the plus (+) and minus (-) volume buttons on the side of CORE.

If you are using headphones to listen to the sounds, please adjust your phone’s volume to change the CORE’s volume. 

Note: Changing the volume on the CORE does not affect the volume of a recording on the App. Recording volume must be adjusted in the app or on the phone itself.

Charge your CORE

The battery in CORE will need to be charged. Insert the included micro USB cable into the USB port on the device and plug the other end into a UL-certified USB wall charged. The LED will turn solid yellow, signifying that it is charging. The LED will change to solid green when the device is fully charged. The fully charged batter should last for at least 8 hours in continuous transmission mode (ON, Bluetooth paired with Eko app).

NOTE: CORE will not turn on while it is plugged in and charging.

Clean your CORE device

Clean and Disinfecting Procedure

The stethoscope and CORE should be cleaned between each use. Infection control guidelines from the Centers for Disease Control and Prevention (CDC) state that reusable medical equipment, such as stethoscopes, must undergo disinfection between patients. Standard stethoscope hygiene practices apply to the Eko CORE.

All external parts of the hardware can be disinfected with 70% isopropyl alcohol wipes. Under normal conditions, it is not necessary to remove the CORE attachment from the stethoscope tubing during the disinfecting procedure.

NOTE: DO NOT immerse the device in any liquid or subject it to any high-pressure/autoclave sterilization processes.

If it becomes necessary to remove CORE, pull the stethoscope tubing off of the metal stem of the CORE attachment on both ends. Wipe all parts of the stethoscope clean with 70% isopropyl alcohol wipes including the CORE’s surface, stethoscope tubing, tubing connector, and chest piece. Reassemble the stethoscope by reinserting the metal stems of the CORE attachment into the stethoscope tubing as described above in the installation process.

Ensure the best audio quality

Please follow the steps below to achieve the best quality auscultation when using your CORE and stethoscope earpieces:

  1. If possible, perform auscultation in a quiet environment. While the CORE has active noise cancellation, there is a chance that some environmental noises will still be audible during auscultation. 
  2. Use the bell to listen to low frequency sounds like heart sounds. Use the diaphragm to listen to high frequency sounds like lung sounds.
  3. Hold the diaphragm firmly against the surface you are auscultating. Pressing too tightly against the surface can muffle sounds.

LB 259, Rev A, April 30, 2021

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