When selecting a syringe, attention is often focused on capacity, delivery accuracy and ease of use. However, there is a less immediately apparent, yet equally relevant, technical aspect: residual volume, namely the amount of solution that remains inside the syringe at the end of the injection.
Zero-residual-volume syringes are specifically designed to minimise this volume, contributing to more accurate administration and more efficient use of the solution contained within the syringe.
What Is Residual Volume in a Syringe?
Residual volume is the amount of liquid that remains inside the syringe after the plunger has been fully depressed.
In conventional syringes, a small amount of solution may remain in the space between the plunger stopper and the Luer fitting. Although this volume is generally minimal, it can be particularly significant in certain clinical settings.
A zero-residual-volume syringe is designed to minimise this space, thereby optimising delivery of the solution.
Why Is Zero Residual Volume Important?
Reducing residual volume improves the overall efficiency of administration.
The main benefits include:
- greater accuracy in solution delivery;
- reduced waste;
- more efficient use of the syringe contents;
- greater consistency from one administration to the next.
These characteristics are particularly valuable in clinical settings where accuracy and repeatability are essential elements of clinical practice.
Zero-Residual-Volume Syringes from the Numantec Group
Attention to residual volume forms part of a design approach aimed at optimising device performance.
The combination of materials, the syringe’s internal geometry and manufacturing quality helps improve the device’s efficiency in routine use, supporting more accurate management of care procedures.
As part of its product portfolio, the Numantec Group offers syringes designed with zero-residual-volume technology, developed to ensure accurate solution delivery and optimise every stage of administration.
Attention to design details is one of the distinguishing features of the Numantec approach: developing devices that combine manufacturing quality, operational efficiency and reliability, while supporting healthcare professionals in their daily activities and contributing to the increasingly responsible use of available resources.
