Tandem Mobi
Insulin Pen
Summary
The Tandem Mobi is the smallest durable automated insulin delivery system available in the U.S. that can be fully controlled by a mobile device. The pump is equipped with an on-pump button for users to bolus insulin directly from the pump if they don’t want to do it from their phone. This system is combined with the Dexcom continuous glucose monitor (CGM) to automatically adjust insulin delivery in response to glucose trends.
*Compatiblilty with Dexcom G7 now available
Insulin pens make insulin delivery more convenient than traditional vial/syringe options. Pens are small, portable, and more discrete to use in public.
Components
Infusion Set
An infusion set contains the thin plastic tubing that delivers insulin from the pump to the body.
Controller
Mobi pump receives CGM readings to automatically adjust basal insulin delivery via an infusion set. Compatible smartphone can be used to view and control insulin delivery.
Sensor
Automatic applicator inserts sensor just under the surface of the skin and can be applied to many places on the body.
Pump
Small pump connects tubing to a 5 inch tubing patch called an infusion set that attaches to the body.
Needles
Disposable needle attaches to insulin pen for daily injections.
Long-acting insulin
Basal (long-acting) insulin pen for steady release of insulin that helps control blood sugar between meals, and overnight.
Rapid-acting insulin
Bolus (fast-acting) insulin pen for meal time or high blood sugar correction.
Device Details
Overview
Tandem Mobi is the smallest insulin delivery system to be fully controlled by a smartphone.
Nothing on the body when not in use. Noticeable when dosing.
Affordability and Access
$$$$
Pump coverage is not yet available. Sensor is widely covered and provided by DME and/or Pharmacy. Sensor price range; $0-$500/month.
$$$$
Widely covered for insulin-dependent type 1 and 2. Price range; 0-$1260/month depending on insurance coverage.
Data Monitoring Options
Yes
The t:connect mobile app for the t:slim X2 pump wirelessly uploads pump and CGM data to the cloud-based t:connect web application.
No Options
Data View Options
Yes
Data can be viewed directly on the pump screen or on the t:connect mobile app (available for both iOS and Android devices).
No Options
Duration and Storage
3-day pump 10-day sensor
Sensors last 10 days and transmitters last 90 and work at 50ºF – 108ºF. Pump can be used for up to 72 hrs, battery life lasts five days with the use of CGM, and work between 40°F - 99°F. Pump supports wireless charging.
28 Days
Can be kept at room temperature (not above 80º F) when in use for 28 days. Unopened insulin pens should be stored in the refrigerator (36ºF - 46ºF).
Vision / Auditory / Dexterity
NO text to speech
YES vibration alerts
A LOT of dexterity needed
NO text to speech
NO vibration alerts
A LOT of dexterity needed
Patient Considerations
Active Lifestyle
Waterproof. The pump and CGM are waterproof and can be worn for most exercises.
No attachments to the body. Insulin pens are easy to use and do not remain attached to the body, allowing for a flexible and active lifestyle.
Avoiding Highs and Lows
Auto basal and bolus insulin. Responds to CGM data by increasing or decreasing basal insulin delivery to prevent highs and lows and maintain a set blood glucose target.
Limited customizability. Pens require manual dose adjustment and limit the ability to adjust basal insulin throughout the day.
Comfort
Shorter tubing option. A shorter 5-inch tubing option for comfort on body.
Many components. Have to carry pen and pen needles but nothing attached to the body.
Easy Insulin Dosing
Automatically adjusts dosing. Sensor integration allows the pump to automatically adjust insulin doses. More customizable dosing than pens or syringes. Manual bolus button is available for quick dosing without a phone.
More precise than syringes. Ability to measure doses using a dial, increasing accuracy.
Easy to Use
Easy Dosing. Full control from a smartphone, with the option to manually bolus if needed.
Simple but many steps. Attach a new needle, dial the correct dose, inject, and dispose of needle.
Fewer Fingersticks
Factory-calibrated sensor. Fingersticks needed for backup only.
Frequent finger-sticks are required.
Privacy
Discreet. Ability to check blood sugar on phone or watch. Ability to bolus on a compatible smartphone. Pump has tubing but can be clipped to clothing or attached to local area with an armband or adhesive sleeve to be discreet when needed. Dexcom's built-in hypoglycemia safety alarm alerts users when glucose is below 55 mg/dl and is always on.
Hideable. Pens can be hidden when not in use but visible when in use. Frequent injections are unavoidable.