As a core precision testing equipment for medical needle tube manufacturing and quality inspection, the Needle Tube Rigidity and Toughness Tester is specially developed for the mechanical performance detection of medical stainless steel needle tubes. It accurately evaluates the rigidity (bending resistance) and toughness (bending fatigue resistance) of various medical needles, providing reliable and standardized test data for medical device manufacturers, quality supervision institutions, and laboratory testing centers. Adhering to international and national industry standards, this instrument has become an essential quality control tool to ensure the safety and stability of medical needle products.

Core Testing Principles

The Needle Tube Rigidity and Toughness Tester integrates two core testing functions in one device, realizing one-stop detection of needle tube mechanical properties. For rigidity testing, the instrument fixes both ends of the needle tube sample, applies precise and constant pressure to the middle position of the sample, and accurately measures the bending deflection of the needle tube under specified force. By analyzing the deflection data, it quantitatively judges the bending resistance and structural rigidity of the needle tube, effectively verifying whether the needle tube will deform excessively during clinical use such as puncture and infusion.

For toughness testing, the equipment conducts continuous cyclic reciprocating bending tests on standard needle tube samples. It simulates the repeated bending and extrusion conditions that medical needles may encounter in production, assembly and clinical operation. The Needle Tube Rigidity and Toughness Tester automatically records the number of bending cycles, and monitors whether the needle tube has cracks, fractures, permanent deformation and other failure phenomena, so as to evaluate the fatigue resistance and service toughness of the needle tube.

Testing equipment：PMT-100N Needle Tube Rigidity and Toughness Tester

Compliant Industry Standards

All test programs of the Needle Tube Rigidity and Toughness Tester strictly comply with mainstream international and national industry specifications, including ISO 9626 (International standard for stainless steel needle tubing for medical use) andGB/T 18457 (Chinese standard for medical needle tube performance testing). The standardized test process, accurate data acquisition system and unified judgment criteria ensure the authenticity, accuracy and repeatability of test results, fully meeting the quality inspection and certification requirements of medical needle products in domestic and overseas markets.

Wide Application Scope

The Needle Tube Rigidity and Toughness Tester supports the testing of various common medical needle tube products, covering hypodermic needles, infusion needles, blood collection needles, puncture needles and other mainstream medical needle types. It is compatible with needle tubes with outer diameters ranging from 0.18mm to 3.8mm, including normal-wall, thin-wall and extra-thin-wall needle tube specifications. The flexible and adjustable fixture design enables the instrument to adapt to different sample sizes, realizing multi-scenario and multi-specification batch testing, which greatly improves the detection efficiency of production and inspection links.

Industry Value

Medical needle tubes are direct contact medical devices, and their rigidity and toughness directly affect clinical safety and user experience. Insufficient rigidity will lead to needle tube bending and failure during puncture, while poor toughness will easily cause needle tube breakage and residual risk in the human body. The Needle Tube Rigidity and Toughness Tester effectively screens unqualified products through precise mechanical performance testing, helps enterprises optimize product formulas and production processes, and comprehensively improves the overall quality level of medical needle products. It provides solid technical support for enterprises to realize standardized production and market-compliant sales.