How to Extend the Dexcom G6 Sensor Beyond the Ten Day Hard Stop

Some clever technologists have discovered how to restart a Dexcom sensor to extend its life beyond ten days. The process works by exploiting a bug in the sensor pairing process.

Katie DiSimone walked us through the process. Katie is involved in the community of people who are building homemade automated insulin delivery systems using current insulin pumps and continuous glucose meters. Since the original article was written, Katie has joined the Tidepool organization which is dedicated to making diabetes data more accessible, actionable, and meaningful for people with diabetes, their caretakers and for researchers as well.

Since our last update, new transmitters have been released. These newer models are more stubborn and are more challenging to “hack”. The specific transmitter ID  will dictate which restart sensor method you should use.

Please see Katie’s instructions to determine which is the preferred method for your transmitter ID.

The method that seems to be working amongst the diabetes online community (and myself; I currently have the transmitter starting with “8G”) is the “pop-out method.” This means you need to physically pop out the transmitter, which can be a little tricky but doable. Here is a video on how to do it, I have had luck with an old credit card.

For this method you will need to:

  • Stop session (it does not matter if the sensor expires on its own first or not)
  • Pop out the transmitter (Some people cover the site during the 30 min period or even insert an old transmitter to prevent stuff from getting in there/ also the wire moving, as the transmitter holds it in place)
  • Set a timer for 30 minutes (I’ve heard that 15-20 minutes works, but have not tried this)
  • Pop the transmitter back in
  • Restart the sensor (make sure to save the previously used code; I snap a picture of it so this way you will not have to calibrate)

There are instructions on how to restart the sensor using the receiver so that you continue to receive current glucose values throughout the 2-hour wait. Here are the instructions on how to do so.

Caveats

The Dexcom G6 has not been tested or approved by the FDA for restarting sensors. There is no guarantee of sensor accuracy. Extend the sensor life only at your own risk.

A previous version of this post has been updated.

Source: diabetesdaily.com

New Implantable Device Gains Attention

We have seen major advancements in the world of continuous glucose monitors in recent years, including Eversense, the first implantable device. This implanted device is able to monitor blood glucose, as well as alert the person when their levels get too low or high. One issue with implantable devices is how to continuously power them. Excitingly, a new prototype was recently developed that can power itself by using our own glucose.

With implantables being the way of the future, having to remove the device to charge is counterproductive. Researchers at King Abdullah University of Science and Technology (KAUST) created this device that is able to directly utilize the energy within our bodies. It is made up of n-type semiconducting polymer along with the enzyme glucose oxidase. When the glucose oxidase detects glucose in its surroundings, it removes electrons and transports them through the connected polymer. The device can detect glucose levels in saliva and likely other bodily fluids, while the same polymer also helps convert glucose and oxygen into electrical power, which runs the device.

While more research is needed to see if this method is practical and safe, so far it has shown to be promising. According to the recent press release,

“This fuel cell is the first demonstration of a completely plastic, enzyme-based electrocatalytic energy generation device operating in physiologically relevant media,” says Sahika Inal, principal investigator of the study. “Glucose sensing and power generation are only two examples of the applications possible when a synthetic polymer communicates effectively with a catalytic enzyme-like glucose oxidase. Our main aim was to show the versatile chemistry and novel applications of this special water-stable, polymer class, which exhibits mixed conduction (ionic and electronic).

Have you considered an implantable device? If insertions were minimal due to this new technology, would it pique your interest?

Source: diabetesdaily.com

Search

+