Catheter Flow Meter

Applications

The catheter flow tester is mainly used to measure and evaluate the flow performance of medical catheters, such as intravascular catheters, non - intravascular catheters, and infusion set catheters. In the medical field, this tester has a wide range of applications, including but not limited to the following aspects: Product R & D: During the design and R & D stage of catheter products, the tester can help engineers accurately assess the flow performance of different design schemes, providing powerful data support for product iteration. Quality Control: Through batch testing, the tester can ensure that each batch of catheters meets the established flow standards and performance requirements, thus improving the overall quality of products. Clinical Application: The tester can be used to monitor the flow changes of catheters in patients, providing real - time physiological parameter feedback to doctors, which is helpful for adjusting treatment plans, assessing the progress of the disease, and preventing complications.

Standards

GB/T 15812.1 - 2005 Non - Vascular Intravascular Catheters - Part 1: General Performance Test Methods

YY 0285.1 - 2017 Disposable Sterile Intravascular Catheters

Features

• Independently developed hydrostatic pressure testing device, capable of maintaining a liquid level of 1000 ± 10 mm.

• Flow rate of 525 ml/min, meeting standard flow rate requirements.

• Equipped with a constant temperature water bath to ensure the test water temperature is 23℃.

• Equipped with a timer for timed testing.

• Test fixture designed strictly according to standard requirements, easy to operate and highly efficient.

• Uniquely designed lifting and lowering structure allows for height adjustment, facilitating testing at different water pressures.

• Equipped with a balance station for convenient placement of balances or measuring cylinders.

• Equipped with an adjustable precision water pump for easy flow rate adjustment.

Technical Parameters

Parameter	Specification
Testing Range	Usually within a weight/volume range (e.g., 1.00 - 600.00g, varying by catheter specifications) or a specific flow range
Accuracy	High testing accuracy (e.g., ±0.01%FS, one-ten-thousandth of full scale) or higher requirements
Static Water Level Height	e.g., 200±5mm, 1000±5mm (meets different testing needs); water pump has automatic circulation function; static water level is adjustable
Time Controller	Usually 0 - 60min, with an error ≤ ±1S; used to control testing time
Fixtures	Adapt to various catheter specifications/types, ensuring test versatility and flexibility
Flow Calculation	Generally uses the weighing method (imported flowmeters optional) to calculate flow, ensuring result accuracy
Flow Rate	e.g., 525ml/min (arbitrary selection) ±25ml/min, etc.; adapts to different testing scenarios
Intelligent Temperature Control	Equipped with a micro-computer intelligent temperature-control system, ensuring constancy and accuracy of test temperature
Special Accessories	Includes stainless-steel thermostatic water baths, special connectors, etc.; meets testing needs of different catheter specifications/types

Accessoriess

Static pressure head, height adjustment device, constant temperature water bath, PU tubing

Test Procedures

1. Before testing, appropriate test conditions, such as water flow rate and pressure, should be set according to the pipe specifications and testing requirements. This helps to ensure the accuracy and reliability of the measurement results.

2. When connecting the pipes, ensure a tight, leak-free connection. Any leaks will affect the accuracy of the measurement results.

3. During the testing process, keep the testing instrument and pipes clean to avoid contamination affecting the test results. Regularly clean and maintain the instrument to ensure its proper functioning and extend its service life.

4. After the test is completed, turn off the testing instrument, disconnect the pipes, and clean and dry them for future use. This helps prevent corrosion and damage to the instrument and pipes due to prolonged disuse.

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