About TRUEplus Single-Use Insulin Syringe, 31 gauge
Trueplus Single-Use Insulin Syringes in 31 gauge represent the finest standard needle gauge commonly available for insulin delivery, offering maximum injection comfort for patients who are particularly needle-sensitive or who inject frequently throughout the day. The 31 gauge, 5/16 inch (8 mm) configuration is especially appropriate for pediatric patients, lean adults, and anyone injecting into areas with minimal subcutaneous fat, where shorter needles reduce the risk of intramuscular delivery. Available in three barrel sizes — 0.3 mL (30 units), 0.5 mL (50 units), and 1 mL (100 units) — to match a full range of prescribed insulin doses. The 0.3 mL size is particularly valuable for patients with very small dose requirements, such as children or those using highly concentrated insulin formulations in small volumes, as its fine graduation marks allow precise measurement of small doses. Each syringe is sterile-packaged for single use. Trueplus 31 gauge syringes are manufactured by Trividia Health and are calibrated for U-100 insulin.
Key Benefits & Features:
- 31 gauge ultra-fine needle provides the most comfortable insulin injection experience
- Short 5/16 inch length minimizes intramuscular injection risk in lean and pediatric patients
- Three barrel volumes (0.3 mL, 0.5 mL, 1 mL) cover the full range of daily insulin doses
- 0.3 mL micro-barrel enables precise measurement of small insulin doses
- Low dead-space plunger design reduces insulin waste at the needle hub
- Single-use syringes for dependable daily insulin management
TRUEplus Single-Use Insulin Syringe, 31 gauge FAQs
What size barrel should I choose?
Choose the smallest barrel size that accommodates your single largest insulin dose. The 0.3 mL barrel (30 units maximum) has the finest graduation marks for precise small-dose measurement and is ideal for pediatric patients or low-dose regimens. The 0.5 mL (50 units) and 1 mL (100 units) barrels cover higher dose requirements.
Is 31 gauge the thinnest insulin needle available?
31 gauge is among the finest standard insulin syringe needle gauges. Some pen needles and insulin pen devices are available in 32 gauge, but for standard insulin syringes, 31 gauge represents the finest commonly available option.
Is the 5/16 inch needle length safe for all adults?
The 5/16 inch (8 mm) needle is appropriate for most adults using subcutaneous injection at a 90° angle. For very obese individuals, longer needles may be recommended to reach the subcutaneous tissue. For lean individuals and children, this short length helps prevent accidental intramuscular injection. Consult your healthcare provider for personalized guidance.
Can I use these with U-200 or U-500 insulin concentrations?
No. Trueplus syringes are calibrated for U-100 insulin only. Using a U-100 syringe with other insulin concentrations will result in significant dosing errors. Special syringes or insulin pens designed for those concentrations must be used.
How do I safely dispose of used syringes?
Dispose of used syringes in an FDA-cleared sharps disposal container. Contact your local pharmacy, health department, or waste management authority for sharps disposal programs in your area.
