The article is provided by Jinan Zhuyan Instrument and Equipment.
The blood bag pressurized emptying tester is based on GB142321-2020 Human Blood and Blood Component Bag Plastic Containers Part 1: Traditional Blood Bags" test requirements for design and manufacture.
Test principle: pressurized emptying.
Fill the plastic blood bag with water at a temperature of (23 5) to the nominal capacity and make a transfusion socket (see 5.)8) with GB 83691. When the specified blood transfusion device is connected between the two plates and gradually squeezed until the internal pressure is 50 kpa higher than the atmospheric pressure, it should be able to empty without leakage within 2min.
The blood bag pressurized emptying test is an experimental method used to test the performance of blood bags. The test steps are as follows:
1.Fill the plastic blood bag with water at a temperature of (23 5) to the nominal capacity, and connect the blood transfusion socket with the blood transfusion set specified in GB8369.
2. Place the blood bag between the two plates and gradually squeeze it until the internal pressure is 50kpa higher than the atmospheric pressure. It should be able to be emptied within 2 minutes without leakage.
The purpose of this test is to check the emptying performance of the blood bag in a pressurized state to ensure that it can meet the need for blood transfusion in clinical use. At the same time, the test can also detect whether there is a leak or other quality problems in the blood bag, thus ensuring the safety and effectiveness of the blood.
In addition, the blood bag pressurization emptying test requires the use of special testing instruments, such as the blood bag pressurized emptying tester. The instrument is able to provide stable pressure and temperature control to ensure the accuracy and reliability of test results.
The blood bag pressurization and emptying tester is an important tool to detect the performance of blood bags, and its accuracy and reliability are of great significance to ensure blood quality and clinical blood transfusion safety. In the blood bag pressurization emptying test, in addition to the need to follow the prescribed test principles and procedures, the following points need to be noted:1Ensure the accuracy and reliability of the test instrument. The blood bag pressurized emptying tester should be calibrated by a professional metrology institution to ensure that its measurement accuracy and stability meet the requirements. At the same time, the test instrument should be regularly maintained and maintained to ensure its normal operation and prolong its service life. 2.Control the test conditions. In addition to temperature and pressure, attention should also be paid to controlling other test conditions, such as ambient humidity, test time, etc. These conditions can have an impact on test results and therefore need to be tightly controlled to ensure the accuracy and reliability of test results. 3.Select the appropriate blood bag sample. In the test, a blood bag sample that meets the requirements of the standard should be selected and ensured that it is not contaminated or damaged. At the same time, the principle of aseptic operation should be followed to avoid interference with the test results. 4.Proper operation of the test instrument. During the test, the test instrument should be operated correctly in accordance with the requirements of the instrument manual to avoid distortion or error of the test results due to improper operation. At the same time, attention should be paid to the changes in the blood bag during the test, and the abnormal phenomena should be recorded and dealt with in time. 5.Interpret the test results. At the end of the test, the test results should be carefully interpreted. Focus on the emptying performance of the blood bag, the presence of leaks, and other quality issues. For products that do not meet the requirements, corresponding measures should be taken to deal with them in time to avoid adverse effects on the safety of clinical blood transfusion. In conclusion, the blood bag pressurization emptying test is an important means to ensure the quality of blood bags and the safety of clinical blood transfusion. In actual operation, the relevant regulations and requirements should be followed, the test conditions should be strictly controlled, the test instruments should be operated correctly and the test results should be carefully interpreted. At the same time, the quality control and management of testing instruments and blood bags should be strengthened to improve the quality of blood and the safety of blood transfusion.