The infusion tube is one of the medical equipment that we often see in our lives. It is called a disposable intravenous infusion set in medicine. It is sterilely processed and can establish a channel between the vein and the medicinal liquid for intravenous infusion.

Disposable infusion sets generally consist of eight connected parts, including intravenous needles or injection needles, needle protective caps, infusion hoses, liquid filters, flow rate regulators, drip pots, cork piercers, and air filters. Some infusion sets also have injection parts, dosing ports, etc.

Its working principle is that under the action of atmospheric pressure, the liquid in the bottle flows into the drip funnel along the thin infusion hose. When the water column pressure in the drip funnel is greater than the venous pressure, the liquid in the bottle flows into the vein along the hose.

In order to avoid the phenomenon that the air in the infusion tube is not drained out, or the tube connection is not tight, allowing air to enter the vein, which will cause abnormal discomfort in the lungs and chest of the infusion patient, therefore, before the infusion tube is produced and shipped from the factory, the manufacturer must perform a one-time air tightness test of the infusion tube.

Share today aboutAir tightness testing of disposable intravenous infusion tubesparameter.

Testing equipment: HC classic seriesAir tightness detector(flow type)

Solution: According to the structure of the infusion tube and customer needs, select a Luer connector and adhesive glue to connect the infusion tube and the air tube of the instrument.

Use the flow test method to connect the infusion tube to the instrument. After pressing the start button, the instrument enters the test program. The test pressure is 30Kpa, the inflation time is 5s, and the test time is 4s.

If the leakage value exceeds 5L/min during the testing process, it means that the product to be tested is unqualified and is a defective product; if it does not exceed, it is a qualified product.

Hai RuisiAir tightness testing equipmentAdvantages

1. The mold processing accuracy is high, up to 0.02mm;

2. Air tightness detector with resolution up to 0.1pa;

3. Hiraysi has all product lines of air tightness detectors, true water detectors, and leakage point detectors, which can meet all sealing testing usage scenarios from trial production to mass production;

4. Hiraysi has the ability to quickly integrate systems and can deliver the goods as soon as 7 days after placing the order;

5. The designed detection system strictly considers the stability and accuracy of the test results.