Medical Fluid System Engineering Toolbox

Needle Gauge, Catheter Size, Tubing & Luer Connector Calculator

Medical fluid systems require precise component sizing and compatibility.

This engineering toolbox provides quick reference and conversion tools for common medical consumables including needles, catheters, tubing and connectors.

Engineers, medical device designers and procurement specialists can use this tool to:

• Convert needle gauge to millimeter diameter

• Calculate catheter French sizes

• Check tubing compatibility

• Estimate fluid flow rate

• Select connectors based on pressure

The tools below are widely used in medical applications such as angiography, infusion therapy, blood collection and suction systems.

Applications

Custom Medical Injection Molding

We manufacture high quality medical plastic components for OEM customers worldwide.

Products include:

• 3 Way Stopcock

• High Pressure Stopcock

• Angiography Manifold

• Y Valve

• Luer Connector

• Blood Sampling Valve

• Medical Tubing Connectors

Our capabilities:

• Medical grade injection molding

• Custom mold development

• ISO manufacturing environment

• OEM / ODM service

Send drawings or samples for quotation. Email: Support@ekinsun.ltd 

FAQ

What is needle gauge?

Needle gauge refers to the outer diameter of a medical needle. The higher the gauge number, the smaller the needle diameter.

What is French catheter size?

French size is a unit used to measure catheter diameter.

1 French = 0.33 mm.

What is a Luer connector? 

A Luer connector is a standardized medical fitting used to connect syringes, needles and tubing. The most common standard is ISO 80369.ISO13485.