The syringe flange, also known as the plunger flange, is an essential component of a syringe. It plays a crucial role in the functioning of the syringe by bearing the load of whatever is pushing the plunger. This can be your thumb when manually operating the syringe or a syringe pump pusher block in automated systems.
The primary purpose of the plunger flange is to provide stability and support to the plunger during the dispensing or withdrawal of fluids. It is typically located at the back end of the plunger and is attached to the plunger rod. The flange is designed to have a larger diameter than the barrel of the syringe, allowing for a secure fit and preventing leakage.
One of the key functions of the plunger flange is to lock into the anti-siphon plate, which is another important component of a syringe. The anti-siphon plate is responsible for preventing the backflow of fluids into the syringe during aspiration. The plunger flange is secured to the anti-siphon plate using an anti-siphon screw, ensuring a tight connection and maintaining the integrity of the liquid seal.
Speaking of the liquid seal, the plunger flange forms a crucial part of it. The liquid seal refers to the barrier created between the plunger and the barrel of the syringe, which prevents any leakage or air entry during the fluid dispensing process. The plunger flange, along with the plunger tip, forms this seal by creating a tight fit against the inner wall of the syringe barrel.
The syringe flange, or plunger flange, is an important component of a syringe that provides stability, support, and a secure fit for the plunger. It plays a vital role in forming the liquid seal between the plunger and the barrel, preventing leakage and ensuring accurate fluid dispensing or withdrawal. The flange also locks into the anti-siphon plate, contributing to the overall functionality and effectiveness of the syringe.