A syringe is a medical device used to inject or withdraw fluids. It consists of several key components, each with a specific function. Here are the main
parts of a syringe and their descriptions:
1. Barrel
Description: The cylindrical body of the syringe that holds the fluid.
Features: Typically made from transparent plastic (such as polypropylene) or glass, allowing for clear visibility of the fluid level and any air bubbles.
Graduations: Marked with measurement lines indicating the volume of fluid contained within, usually in milliliters (ml) or cubic centimeters (cc).
2. Plunger
Description: A rod that fits snugly inside the barrel and is used to draw in or expel fluid.
Features: Often has a rubber tip at the end to create an airtight seal with the barrel.
3. Plunger Seal
Description: The rubber tip attached to the end of the plunger.
Function: Creates an airtight seal with the barrel, ensuring smooth movement and preventing leakage.
4. Flange
Description: The flat extension located at the top of the barrel.
Function: Provides a grip for the user during operation, allowing them to hold and stabilize the syringe while pushing or pulling the plunger.
5. Tip
Description: The end part of the barrel where the needle attaches.
Types:
Luer Lock Tip: Features a threaded design allowing needles to be securely twisted onto the syringe, reducing risk of dislodgement during use.
Luer Slip Tip: Features a smooth tapered design allowing needles to be pushed on and pulled off easily for quick attachment and detachment.
Eccentric Tip: Features an offset nozzle allowing closer contact with skin surface during injections; ideal for procedures requiring parallel insertion such as aspiration or venipuncture.
Centric Tip: The nozzle is centered at the end of the barrel; commonly used for general purposes like
injecting medication manufacturer or drawing blood.