Insulin cartridge filling tool for Tandem t:slim X2

Demographic Focus

T1D | T2D

Age Focus

Juvenile | Adult

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Cierta is designed specifically to assist with the insulin filling process for the Tandem t:slim X2 cartridge.

  • Provides accuracy to align the needle with the cartridge fillport.
  • Provides stability during the cartridge filling process.
  • Improves safety by reducing the chance of a needle poke.
  • Saves time by taking the guesswork out of finding your fillport.


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