Infusion device Leakage negative pressure tester

The Infusion Device Leakage Negative Pressure Tester is designed to evaluate the airtightness of syringes, infusion sets, and related medical devices under negative pressure. The instrument applies precise vacuum conditions to detect leaks, ensuring the integrity of medical devices for patient safety. It is suitable for laboratory testing, production quality control, research and development, and regulatory certification.

Application

The tester is suitable for leakage testing of medical infusion devices in the following industries and products:

(1) Medical Quality Control: Ensures syringes, infusion sets, and other injection devices meet strict leakage standards to protect patient safety.

(2) Pharmaceutical Manufacturing: Validates packaging and device integrity for sterile medical products.

(3) Research & Development: Supports design validation, accelerated aging, and product optimization of infusion devices.

(4) Certification & Regulatory Testing: Enables compliance with national and international medical device standards and regulatory requirements.

(5) Third-Party Testing Laboratories: Provides standardized, repeatable leakage testing for medical device certification.

Standards

The instrument is compliant with the following standards, including relevant international regulations:

(1) GB 8368-2005 – Disposable Infusion Sets for Single Use — Gravity Infusion Type, Airtightness Testing Requirements

(2) ISO 8536-4 – Sterile Syringes for Medical Use — Leakage Test Methods

(3) ISO 13485:2016 – Medical Devices — Quality Management Systems for Regulatory Compliance

(4) ASTM F2392-04 – Guide for Leak Testing of Medical Fluid Delivery Devices

Features

(1) Precision negative pressure testing: -10 to -30 kPa with ±0.5 kPa accuracy

(2) Dual-temperature testing: 23 ±1°C and 40 ±1°C to simulate real-world and accelerated aging conditions

(3) PLC-driven automated control: ensures repeatable and reliable results

(4) Safety interlocks and auto-shutoff prevent device damage

(5) Compact footprint (500×600×500 mm) suitable for labs and production lines

(6) Adjustable test time (1–16 seconds) with intuitive digital touchscreen interface

(7) Distilled water flushing system in vacuum chamber eliminates air bubbles for accurate detection

(8) Stainless steel construction for corrosion resistance and easy cleaning

Technical Parameters

Parameter	Specification
Control Mode	Automatic (PLC)
Test Pressure Range	-10 kPa to -30 kPa (Adjustable)
Pressure Accuracy	±0.5 kPa
Temperature Range	23 ±1°C / 40 ±1°C
Test Time	1–16 seconds (Adjustable)
Chamber Material	Medical-grade stainless steel
Power Supply	AC 220V ±10%, 50Hz
Dimensions (L×W×H)	500 mm × 600 mm × 500 mm
Net Weight	30 kg
Display	LED Touchscreen (Pressure/Time/Status)

Accessories

(1) Vacuum chamber with integrated distilled water flushing system

(2) Standard connectors for syringes and infusion sets

(3) Power cable

(4) Operation manual

(5) Calibration certificate

Test Procedures

(1) Install the infusion device or syringe in the vacuum chamber connector

(2) Seal the chamber properly and ensure the distilled water flushing system is operational

(3) Set the test pressure (-10 to -30 kPa) and test time (1–16 s) on the touchscreen interface

(4) Select the desired temperature condition (23°C or 40°C)

(5) Start the automated test

(6) Monitor the pressure decay and leakage rate in real time on the display

(7) Review results and mark the device as “Qualified” or “Unqualified”

(8) Release the pressure and remove the tested device

(9) Repeat for additional samples

Maintenance Information

(1) Clean the vacuum chamber and connectors after each test to remove residues

(2) Inspect seals, connectors, and chamber surfaces for wear or damage

(3) Calibrate pressure sensors and temperature control systems regularly

(4) Store the instrument in a clean, dry, and ventilated environment

(5) Avoid excessive force or impact on the instrument to prevent damage

(6) Maintain logs for calibration, testing, and maintenance to comply with regulatory requirements

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