Invention patent: ZL 2015 1 0405837.9

The main purpose

It is suitable for the measurement of the flow of water flowing through the catheter under a constant static pressure head, and it can also be used to determine the flow of other rigid or semi-rigid fibers in the form of a tubular material.

Technical index

1. It has a closed-loop constant temperature water bath;

2. Equipped with a high-precision sensor to measure the quality of the effluent from the catheter, with an accuracy of ±1%;

3. The working environment temperature of the instrument must meet (20±2)℃;

4. Computer control, full Chinese interface, high degree of automation;

5. The data is processed by the computer, equipped with a printer interface, and the test data can also be displayed directly.

6. Reagent: distilled water or deionized water;

7. The temperature of the constant temperature water bath is 22℃±2℃;

8. The constant liquid level container provides a liquid flow rate of 525mL/min±25mL/min, and a static pressure head with a height of 1000mm±5mm;

9. Liquid outflow time: 30s;

10. Sensor range: 0～500g, measurement accuracy: ±1%;

11. Power supply: 220V, 50Hz.

Applicable standards

YY 0285.1-2017 Single-use sterile catheters for intravascular catheters Part 1: General requirements

YY 0325-2016 Sterile urinary catheter for single use 4.8

GB/T 15812.1-2005 Non-intravascular catheters Part 1 General performance test methods Appendix E