loop device v4
Freestyle Lingo v2

Summary

Loop is a DIY (do-it-yourself) system. It takes some work to set up but allows people to think about diabetes less by automating basal insulin delivery based on predicted glucose levels. This system can be used with the Dexcom G6 and the Omnipod or Medtronic pumps. Information about DIY Loop can be found on the Loop or Riley Link websites.

Freestyle Lingo is an over-the-counter low-profile, all-in-one glucose sensor/transmitter. This sensor lasts for up to 14 days and sends real-time glucose readings to a compatible smartphone app. No finger pricks or scanning is needed. FDA approved for people 18 and older who are not on insulin

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Components

Loop : Pump

Loop : Pump

The system is compatible with Omnipod (left) or Medtronic (right) pumps. Both options can be applied anywhere on the body that is comfortable.

Loop : Sensor

Loop : Sensor

Automatic applicator inserts sensor just under the surface of the skin and can be applied to many places on the body.

DIY Loop : Transmitter

DIY Loop : Transmitter

RileyLink allows the pump and sensor to communicate. It is only required if a Medtronic pump is used.

Loop : Controller

Loop : Controller

Smartphone or smartwatch receives CGM readings and automatically adjusts insulin delivery via an Omnipod or Medtronic pump.

Freestyle Lingo : Sensor

Freestyle Lingo : Sensor

Sensor uses a thin, flexible filament inserted just under the skin to measure glucose levels every minute. Push-button applicator allows sensor to be placed on the body in one step.

Freestyle Lingo : Receiver

Freestyle Lingo : Receiver

Conveniently access glucose readings using a reader, smartphone, or both. Available for both iOS and Android devices.

Device Details

Overview

This is a DIY (do-it-yourself) system that needs significant setup. It has the most flexibility in settings and device options. It also depends on a third device called a "Riley Link" to communicate between sensor, phone, and pump. 

Smallest, thinnest, all-in-one glucose sensor/transmitter with low and high blood glucose alarms can be worn on the upper arm.

Affordability and Access

$$$$
Supplies can be covered for Omnipod or Medtronic pumps and Dexcom. Price range; $0-$8,574 to start and 0-$300/month. iPhone, app, and Riley link are not covered and must be set up independently. Riley link price range; $135-$165.

$$$$
Widely covered. Provided by pharmacies. Price range; $49 for one 14-day sensor, $89 for two sensors, or $249 for six sensors. Often, it is the cheapest and easiest-to-access sensor. 

Data Monitoring Options

Yes
Compatible with Tidepool - a web-based diabetes data management system. 

Yes
Sensor automatically sends data to the user’s LibreLingo account which enables sharing with HCPs and caregivers via the LibreLink app. 

Data View Options

Yes
Data can be viewed on an iPhone. 

Yes
Freestyle Libre Lingo app provides glucose readings and alarms, multiple data views, the ability to share glucose data and real-time alarms with LibreLingo.

Duration and Storage

3-day pump 10-day sensor
Sensors last 10 days and transmitters last 90, and work at 50ºF – 108ºF. Pods or pump reservoirs last for up to 72 hrs and work from 40ºF – 104ºF.

14 Days
Sensors last 14 days and work between 50ºF - 113ºF. They are shipped in orders of 1-3 months at a time - which is 2-6 boxes at a time.

Vision / Auditory / Dexterity

NO text to speech
YES 
vibration alerts
A LOT
of dexterity needed

NO text to speech
YES vibration alerts
A LOT of dexterity needed

Patient Considerations

Active Lifestyle

Automatic responses. Can set custom blood sugar targets and insulin and carb sensitivities based on type of activity. App automatically responds to blood sugar changes during activity. *Medtronic option is not waterproof. Omnipod option is fully waterproof. 

Water-resistant for up to 3 feet deep for 30 minutes and light on the body, does not get in the way of activity. 

Avoiding Highs and Lows

Automatically adjusts insulin delivery. Increases or decreases insulin delivery to meet glucose targets. Insulin delivery settings can be aggressive or conservative.

Optional glucose alerts for low and high glucose levels. Trend arrows show the direction glucose is heading, with the rate of change. 

Comfort

Low-profile but extra device. Low profile/low maintenance sensor. The RileyLink is an extra device that must be carried.

Lowest profile sensor and smallest adhesive (about the size of two stacked U.S pennies). 

Easy Insulin Dosing

All settings are completely customizable. Can bolus from phone or smartwatch. Can operate “open-loop” where the user must enact insulin delivery based on recommendations or “closed-loop” where modifications to insulin delivery are automatically delivered.

Sensor trends can be used for dose adjustment.

Easy to Use

Difficult set-up but easy to use. Software makes most dosing decisions. Requires many parts. Can be difficult to set up. 

No scanning required. Minute-by-minute readings are sent directly to the mobile app. 

Fewer Fingersticks

Factory-calibrated sensor. Fingersticks needed for backup only.

Factory-calibrated sensor. Finger-sticks needed for backup only. 

Privacy

Discreet. Ability to give insulin via watch or phone. Ability to check sugar on phone or watch. Alerts available. *Medtronic pump has tubing. Omnipod is most hideable pump option (no tubes or separate controller needed).

Hypoglycemia safety alarm. Discreet size but built-in hypoglycemia safety alarm alerts users when glucose is below 55 mg/dl and is always on.