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Frequently Asked Questions

General questions

A number of consumer products and surface materials contain softening agents, so called plasticizers, to make the material flexible. Such materials are known to provoke allergic reaction or even carcinogenic. The softening agents are mainly used in PVC. Because the Accu-Chek infusion sets are free of PVC we can exclude the content of plasticizers, especially DEHP [di(2-ethylhexyl)-phthalate] and DBP [dibutyl-phthalate].

Using hypoallergenic materials is a high priority for Roche. Our infusion sets are latex- and PVC-free, and glues and solvents are used as little as possible. The adhesive tape is also specially designed to allow the skin underneath it to breathe. However, allergic reactions can never fully be ruled out. Sometimes they develop suddenly, even if you have used the same product for years. If an allergic reaction should occur, ask your physician about products that can help you continue a comfortable therapy.

While you may feel a small pinch when inserting the set, many people find infusion set insertion more comfortable than giving injections. Once the set is under the skin, it is so comfortable that many people forget they're wearing it

Pain at the infusion site may be a sign that you are using a set which does not penetrate at the right depth for you (this can especially affect children or thin users).  For 90° insertion sets, talk to your physician about the possibility of switching to a different needle or cannula length.

The The disconnectable Accu-Chek infusion sets allow you the freedom to disconnect from your insulin pump altogether for the duration or your activity. Talk to your physician about time off the insulin pump for sports or an occasional day at the beach.

Water sports and heavy sweating can affect the infusion set’s adhesive pad – try using an extra water-permeable adhesive patch (like Tegaderm™ or Opsite™ IV3000™) to give your site extra security. Sandwich technique: Cleanse the skin using an adhesive wipe, allow to dry, apply a sterile dressing, insert the set into the dressing, cover the set with another sterile dressing to “sandwich” the infusion set.

The Accu-Chek infusion sets offer a Luer-lock connection that meets international standards and is widely used in medical engineering. Our sets fit on all Accu-Chek insulin pumps except the Accu-Chek Insight insulin pump. Our sets fit on all other insulin pumps that meet the same standard.

In order to help keep sites free of infection, we recommend that sites be changed at least every 48 hours for steel needle sets and every 72 hours for soft cannula sets. It is important to always test your blood glucose level 1-3 hours after inserting a new set, to make sure that it's functioning properly.

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Accu-Chek Ultraflex

Item Description

The Accu-Chek Ultraflex infusion set is an easy, convenient way to connect to your insulin pump—no matter what your age or level of experience. Easy handling simplifies manual insertion, plus the optional Accu-Chek LinkAssist insertion device provides a quick, consistent alternative. Keep things simple and uncomplicated while also enjoying the wearing comfort, freedom of movement and security.

Product Manuals


90° angle




8 and 10 mm


60, 80 and 110 cm

Benefits and features
  • 90° insertion angle, soft-flexible cannula
  • The removable blue holder cap for convenient handling makes grasping the head set easy and facilitates controlled insertion without changing the low profile of the head set in use
  • Simple connection/disconnection at site and audible click helps indicate that the connection is firm
  • Easy handling for those who prefer manual insertion
  • For those who prefer automatic insertion, the Accu-Chek LinkAssist insertion device offers quick, consistent, comfortable placement
  • The flat, rounded-edge cannula housing is comfortable to wear and helps reduce the risk of snagging and dislodging
Cannula type:

Soft cannula ⌀: 0.5 mm / 25 gauge

Insertion angle:


Cannula lengths:

8 and 10 mm

Tubing lengths::

60, 80 and 110 cm

Disconnection :

Yes, at site

Pump connection:

Standard luer-lock connector

How to use the Accu-Chek Ultraflex infusion set

For more information on how to use the Accu-Chek Ultraflex infusion set with your insulin pump, please see your Accu-Chek Ultraflex infusion set Instruction for Use.