Sterile Hypodermic Syringe (3 ML)

A 3 mL sterile hypodermic syringe is one of the most widely used medical devices globally. It is designed for precise, single-use administration of medications, vaccines, and intramuscular or subcutaneous injections.

Key Technical Specifications

Nominal Capacity: 3 milliliters (often marked up to 3.5 mL for overflow).

Graduation Interval: Clear, abrasion-resistant markings at 0.1 mL increments for highly accurate dosing.

Material: Medical-grade, highly transparent polypropylene barrel and plunger.

Sterilization: Sterilized using Ethylene Oxide (ETO) gas or Gamma radiation to ensure the fluid path is pyrogen-free.

Tip Types: Available as a Luer Lock (threaded tip for twisting the needle securely) or Luer Slip (push-on friction fit).

Components of a 3-Piece Design

Barrel: The clear outer cylinder with a retaining ring to prevent accidental plunger withdrawal.

Plunger: The inner rod used to draw in or expel medication.

Rubber Gasket: A latex-free synthetic rubber piston that provides a smooth, leak-proof seal.

Common Needle Pairings

While sold standalone, 3 mL syringes are frequently pre-packaged with specific needle gauges based on the injection route:

21G to 23G (1 to 1.5 inch): Standard for deep intramuscular (IM) injections (e.g., vaccines, antibiotics).

25G (5/8 inch): Standard for subcutaneous (SubQ) injections under the skin.