A group of people at a backyard party

How Your ICM
Monitors Your

LUX OverviewLUX -Dx ICM System Overview

LUX-Dx™ ICM System Overview

If you’ve been experiencing symptoms like fainting, a racing heart, or shortness of breath, your health care team may recommend the LUX-Dx Insertable Cardiac Monitor. Also called an ICM or heart monitor, it’s a small device that monitors and records your heart rhythms.

Watch the video below for a quick overview about the LUX-Dx ICM System and how it works to monitor your heart rhythms.

Illustration of a man walking in a park and a play button to watch an overview video about the LUX-Dx ICM System.

How Your ICM System Works

It’s important to know that your LUX-Dx ICM doesn’t treat your condition. As you go about your day, it automatically checks for irregular heart rhythms (cardiac arrhythmias) and regularly sends information about your heart rhythms to your health care team over a secure Wi-Fi or cellular network. Your clinic will look at the information and contact you if there is need for further review. 
Icons of the LUX-Dx ICM System, a mobile phone and a hospital

Did You Know?

The LUX-Dx ICM System checks for arrhythmias. That’s when the heart is beating too fast, too slow, or in an irregular pattern. It’s an Insertable Cardiac Monitor, which means it’s used to identify a potential issue, not treat it.

System Parts

Your LUX-Dx ICM System has three main parts:
Icon of the LUX-Dx ICM System next to a paperclip

1. ICM Device

This is a small electronic device about the same length as a paperclip placed just under your skin. It automatically monitors and records information about your heart rhythms—whether you’re near your mobile device or not.  

Mobile phone screen showing the myLUX Patient app

2. myLUX™ Patient App

Your myLUX™ app is pre-installed on a mobile device that you’ll get from your health care team after your insertion procedure. It collects information about heart rhythms stored on your ICM device and automatically sends it to your health care team. Your data is usually sent overnight, without you even noticing. You don’t need to carry your mobile device with you unless your health care team tells you to, but you do need to keep it charged and powered on. 

Blue magnet.

3. Magnet

The magnet helps your myLUX app connect to your ICM device and is used to set up your app. Your health care team will let you know if and how they want you to use the magnet after the initial myLUX app setup.


Your mobile device is not a phone that you can use to make calls, text or browse the internet, even in an emergency. In case of emergency, be sure to call emergency medical services on your regular phone.

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Patient and Caregiver Support

If you have questions about the LUX-Dx ICM System or myLUX Patient app,
feel free to give us a call at 1-866-484-3268.

Frequently Asked Questions

Frequently Asked

Find answers to common myLUX app questions, including how to connect to WiFi, change your language settings and more. 

Patient Resources


Find a variety of helpful downloads and videos about living with a LUX-Dx ICM, using your myLUX Patient app and more.


Indications, Safety and Warnings