Syringe is a kind of medical device with a wide range of medical clinical use. Its quality is directly related to human health and life safety. Whether the needle penetration force of the syringe directly affects the adaptability of its use is one of the key indicators of various manufacturers. To this end, the national needle YBB00092004 has clearly defined the needle penetration force.
Sanquan Zhongshi performs YBB00092004-2015 Standard for stainless steel injection needles for pre-filled syringes. The medical injection needle tip force tester CCY-02 is used to test the puncture performance of the needle tip and evaluate the sharpness of the syringe needle. Whether it meets the standards.
Medical needle tip puncture force tester
The needle tip puncture force detecting method is to mount the injection needle on the driving mechanism to which the measuring device is connected, and then the needle is vertically passed through the simulated skin at a prescribed speed, and the piercing force of the injection needle is evaluated by the measured large peak value of zui. The injection needle tip puncture force test step j is as follows:
1. Place the test needle and simulated skin at 22 ° C ± 2 ° C for at least 24 h and test at the same temperature;
2. Clamp the appropriate size of the simulated skin on the fixture without any significant stretching or compressive force on the simulated skin;
3. The needle to be inspected is mounted on the device, the axis of which is perpendicular to the surface of the simulated skin, and the tip of the needle points to the center of the circular puncture area;
4. Set the moving speed to 100mm/min;
5. Start the test device;
6. During the puncture on the membrane, the max sharpness value or the recording force/displacement map is simultaneously measured;
7. Comparing the max peak value in the obtained force/displacement map with the required prescribed value, and determining that the piercing force of the needle to be inspected meets the requirement when the max peak value is less than or equal to the predetermined value;
8. The needle tip of the needle should be sharp and its value should meet the requirements of Table 4:
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