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Micro-Fine Ultra™ 4mm
embecta is committed to helping your patients inject insulin correctly.
- Overview
A recent study showed that people with diabetes were making at least 1 mistake in how they inject insulin.1,2<< This can lead to insulin not working the way it should.2
Accuracy
The Micro-Fine UltraTM 4mm Pen Needle is recommended for all adults and children with diabetes, regardless of BMI. It is long enough to traverse the skin but short enough to avoid intramuscular injection.3*
Comfort
The Micro-Fine Ultra™ 4mm Pen Needle with 5-bevel needle tip can bring a more comfortable and less painful injection.4^
Confidence
The Micro-Fine UltraTM 4mm Pen Needle has Ultra-Thin wall technology to increase the flow of insulin so less thumb pressure is needed to push the pen button - making it easier to give the injection and giving your patients confidence the full dose of insulin was received.5¥
Compatibility
Micro-Fine UltraTM 4mm Pen Needles are compatible with widely used pen injection devices, so even if your patient's treatment regimen changes, you won't have to change your choice of pen needle for them.6
Single Use
Use a new pen needle every time you inject. Pen needles are recommended to be used only once and are no longer sterile after that.2
<< 230 patients with diabetes surveyed as part of a cross-sectional observational behavioral study in Canada.
* Patients ages 2-6, or those who are extremely lean may require a pinch-up.
^ Patients were aware of the pen needle they were using.
¥ 198 patients with diabetes were included in this prospective, multicenter, randomized, open-label, 2- period, crossover study to evaluate differences in perceived thumb force and in confidence that the full dose of insulin was delivered, between the participants’ usual pen needle (PN) and the corresponding extra-thin wall (XTW) pen needle. Significant differences favoring XTW pen needles were seen for perceived thumb force and confidence that the full dose was delivered by 28.4mm (95% CI, 23.7-33.2), and 24.4mm(95% CI, 19.7-29.1), respectively; (all, P<0.001). Ultra-thin wall was introduced as an ISO standard for inner wall diameter in 2016.
1. Bari B, Corbeil MA, Farooqui H, et al. Insulin injection practices in a population of Canadians with diabetes: an observational study. Diabetes Ther. 2020;11(11):2595-2609.
2. Frid AH, et al. New Insulin Delivery Recommendations. Mayo Clinic Proceedings. 2016;91(9):1131–1255.
3. Klonoff DC, Berard L, Franco DR, et al. Advance Insulin Injection Technique and Education with FITTER Forward Expert Recommendations. Mayo Clin Proc. 2025; 100(4):682-699.
4. Hirsch L, Gibney M, Berube J, Manocchio J. Impact of a modified needle tip geometry on penetration force as well as acceptability, preference, and perceived pain in subjects with diabetes. J Diabetes Sci Technol.2012;6(2):328-335.
5. Aronson R, Gibney MA, Oza K, et al. Insulin pen needles: effects of extra-thin wall needle technology on preference, confidence, and other patient ratings. Clin Ther.2013;35(7):923-933.
6. Pen Needle Compatibility Status Summary with Diabetes Care & Non-Diabetes Drug Delivery Devices - Document Number: 149OTH-0004-20 Rev Y – 2025-11-18.