Targeting Types

[Best viewed on a widescreen]

RADD discourages the use of temporary targets and below are examples of RADD's approach to the problems that temporary targeting tries to solve.

Target blood glucose set to 5.5 mmol/L (100 mg/dL) in all examples.

1. Reserved targeting: Swimming School

Reserved targeting allows for reaching the target range with a reduced amount of insulin, thereby reducing the risk of e.g. physical activity result in unexpected lows. This type of targeting is useful for unusually active times of longer durations.

This user option can be set for temporary time periods to cover such high activity levels. In the example below, it's turned on from 9:00 until 14:00

Mealtimes: Breakfast at 7:30, Lunch at 12:00

Activities: Walking 08:00 to 08:30, Walking 12:30 to 13:00, Swimming 13:00 to 14:00, Walking 14:00 to 14:30

Insulin infusion is suspended by the algorithm once reserved targeting has been turned on (09:00) and remains suspended until a certain threshold has been detected for the safe continuation of insulin (10:20).

This is done to establish a safety baseline. Once the baseline is reached, insulin infusion is resumed. Below you can observe boluses being administered continuously until 13:00 and the basal schedule being allowed to run even further until 14:00.

While most 'safety focused' systems would strive towards not letting BGC fall below a high temp target, OmniCore RADD can be relatively adamant. Not only will it prevent blood glucose from further rising or stalling at high levels, it will also ensure an eventual 'safe landing' on the target.

2. Reserved targeting experiment: Not so active day

Here's an example of what happens if instead of standard targeting mode, reserved targeting is used continously.

This is meant to show that the reserved targeting does NOT target a higher BGC and will bring levels to the intended range given enough time.

It's a controlled experiment and not meant for regular use. In other words: Do not try this at home.

Mealtimes: 07:30, 12:30 and 18:30

Activity: 10:00 to 12:00

You can observe certain basal variations (at 16:50, 23:40 and 01:50) resulting in peaks of up to 3.3 mmol/L (60 mg/dL) over the intended range. This is due to the reserved targeting mode in a not physically active setting; yet you can also observe BGC falling back to range afterwards.

3. The 'standard' descent

This is an example of a so called 'soft landing' performed by the (default) balanced targeting mode.

Starting with a high BGC due to previously failed pod and a late replacement of a new pod at 22:55

This sample demonstrates three major properties of the overall system:
1) The adaptation speed in default settings (due to a new pod insertion)
2) Efficiency of the targeting mode (time to range under 2 hrs)
3) Accuracy of the system (barely touching the low barrier and final positioning on target)

[More to follow]

Back to samples index

Technical Details
  • Single infusion site (back of the arm)
  • Unfiltered CGM sensor data.
  • No additional insulin injection.
  • No glucagon infusion.
  • Pump programmed with 0.8U/h basal schedule over 24h at all times.
RADD Setup:
  • Target: 5.5 mmol/L (100 mg/dL)
  • Low target: 4.4 mmol/L (80 mg/dL)
  • Extreme low: 3.3 mmol/L (60 mg/dL)
  • Targeting Modes: As described
  • Analytic data going back ~2 years
Hardware Setup:
  • Omnipod Eros with Fiasp
  • Dexcom G6 Sensor & Transmitter
  • OmniCore Oyster Prototype for reading CGM data
  • OmniCore Oyster Prototype for expedited pod comms