Needle Only

A syringe needle is a thin, hollow, sharp-tipped tube designed to attach to a syringe for injecting substances—such as medications or vaccines—into the body or for withdrawing fluids like blood. Needles are classified by gauge (diameter) and length, with higher gauge numbers indicating a thinner needle. Modern medical practice increasingly uses safety-engineered needles to reduce the risk of accidental needlestick injuries.

Key Components & Types

Hypodermic Needle:
The stainless-steel hollow tube that penetrates the skin for fluid injection or withdrawal.

Syringe:
The hand-operated barrel and plunger assembly that works with the needle to draw in or dispense liquids.

Gauge (G):
Indicates needle diameter. A higher gauge number means a thinner needle (e.g., 25G is thinner than 18G).

Length:
Common lengths range from ½ inch to 1.5 inches, selected based on injection depth and application.

Safety Needles:
Include built-in protective shields or mechanisms that cover the needle after use to help prevent accidental injuries.

Common Uses

• Administering medications, insulin, and vaccines

• Drawing blood samples (phlebotomy)

• Laboratory liquid transfer and sampling

Important Considerations

• Gauge & Length Selection: Based on fluid viscosity, injection site, and patient comfort.

• Safety Practices: Use safety needles when possible and always dispose of used sharps in approved containers.

• Do Not Share Needles: Sharing needles can transmit serious infections such as HIV and Hepatitis.

Shop our selection of medical grade needle only sizes at Easy Labz.